🚿 🎂 🙌🏾 हम ड्राइव के प्रदर्शन या IOPS के बारे में फिर से मापते हैं ⛓️ 🚑 👩🏻‍🌾

डिस्क प्रदर्शन को मापने के तरीके पर एक सम्मानित अमराओ पोस्ट से प्रेरित ।

उद्देश्य:

उपलब्ध स्टोरेज मीडिया के प्रदर्शन का परीक्षण करें और सुनिश्चित करें कि चुनी गई विधि सही है, साथ ही विभिन्न प्रकार की ड्राइव्स के साथ-साथ एंटरप्राइज़-स्तर और उपभोक्ता-स्तरीय हार्ड ड्राइव के बीच प्रदर्शन के अंतर को भी समझें।

उपकरण:

सैंडिस्क क्लास 10 यूएचएस 1 एक्सट्रीम प्रो 8 जीबी एसडी कार्ड (95 एमबी / एस तक पढ़ें, 90 एमबी / एस तक लिखें)
टीम कक्षा 10 32 जीबी एसडी कार्ड (20 एमबी / एस तक)
गति वर्ग के बिना 2GB एसडी कार्ड पार
SSD OCZ-AGILITY3 60 GB
हिताची डेस्कस्टार HDS723020BLA642 उपभोक्ता-स्तरीय एसएटीए ड्राइव 2 टीबी 7200 आरपीएम, 64 एमबी
SATA- ड्राइव एंटरप्राइज-लेवल वेस्टर्न डिजिटल RE3 WD2502ABYS-23B7A0 250 GB 7200 rpm 16 MB
SATA ड्राइव उपभोक्ता-स्तर सीगेट बाराकुडा 7200.11 ST3320613AS 320 जीबी 7200 आरपीएम 16 एमबी
सीडी-रोम
लिनक्स पर रैम डिस्क / देव / रैम

परीक्षण विधि:

तकनीक पूरी तरह से पोस्ट में वर्णित है। वास्तव में कुछ पूरी तरह से स्पष्ट बिंदु नहीं हैं:

हम संचालन की समानता की गहराई का चयन करते हैं ताकि विलंबता उचित सीमा के भीतर बनी रहे।

कार्य इस तरह के आयोडेथ को चुनना है, ताकि एवीगेटेंसी 10ms से कम हो।

चूंकि परीक्षण भंडारण प्रणालियों या एसएएस डिस्क का उपयोग नहीं करता है, लेकिन विभिन्न एसएटीए ड्राइव, यह समानता को मापने के लिए कोई मतलब नहीं है।
प्रत्येक परीक्षण से पहले डिस्क को साफ करने में बहुत समय लगता है (dd if = / dev / zero of = / dev / sdz bs = 2M tolag = direct), इसलिए हम प्रत्येक ड्राइव के लिए एक बार परीक्षण करने से पहले ऐसा करेंगे।
पूरी डिस्क का पूरी तरह से परीक्षण करने में बहुत समय लगता है, इसलिए हम 30 सेकंड के लिए परीक्षण का उपयोग करेंगे।
इसलिए, हम अपने मामले के लिए परीक्षण पद्धति तैयार करते हैं:
4 केबी के ब्लॉकों में यादृच्छिक पढ़ने और लिखने के लिए ड्राइव द्वारा जारी IOPS मूल्य प्राप्त करें और 30 सेकंड के परीक्षण समय के दौरान 10 से अधिक एमएस की औसत की देरी । इसके अलावा, पूर्णता के लिए, रैखिक रिकॉर्डिंग की गति को मापें।

फियो कॉन्फ़िगरेशन पढ़ें:

  [Readtest]
 blockize = 4k
 फ़ाइल नाम = / देव / एसडीए
 rw = randread
 प्रत्यक्ष = १
 शौकीन = ०
 ioengine = लाइबियो
 iodepth = 1024

 रनटाइम = 30

Fio रिकॉर्ड कॉन्फ़िगरेशन:

  [Writetest]
 blockize = 4k
 फ़ाइल नाम = / देव / sdz
 rw = randwrite
 प्रत्यक्ष = १
 शौकीन = ०
 ioengine = लाइबियो
 iodepth = 1024

 रनटाइम = 30

परिणाम:

सैंडिस्क क्लास 10 यूएचएस 1 एक्सट्रीम प्रो 8 जीबी एसडी कार्ड (95 एमबी / एस तक पढ़ें, 90 एमबी / एस तक लिखें)

पढ़ें: iodepth = 1024, bw = 4528.8KB / s, iops = 1132, avg = 894.10 मिसे

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 1024
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [4484K / 0K / s] [1121/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3805
पढ़ें: io = 136464KB, bw = 4528.8KB / s, iops = 1132, runt = 30133msec
slat (usec): मिनट = 3, अधिकतम = 31548, avg = 877.11, stdev = 4880.99
clat (msec): मिनट = 119, अधिकतम = 1819, avg = 894.10, stdev = 157.70
lat (msec): मिनट = 149, अधिकतम = 1819, avg = 894.98, stdev = 157.76
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [437], 5.00 वां = [742], 10.00 वां = [775], 20.00 वां = [807],
| 30.00 वां = [824], 40.00 वां = [840], 50.00 वां = [865], 60.00 वां = [881],
| 70.00 वां = [906], 80.00 वां = [963], 90.00 वां = [1090], 95.00 वां = [1205],
| 99.00 वां = [1450], 99.50 वां = [1549], 99.90 वां = [1663], 99.95 वां = [1696]
| 99.99 वां = [1778]
bw (KB / s): मिनट = 5, अधिकतम = 5089, प्रति = 98.25%, avg = 4448.82, stdev = 632.04
lat (msec): 250 = 0.38%, 500 = 0.85%, 750 = 5.19%, 1000 = 77.27%, 2000 = 16.31%
सीपीयू: usr = 0.31%, sys = 0.57%, ctx = 1195, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 99.8%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी: कुल = आर = 34116 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 136464KB, aggrb = 4528KB / s, minb = 4528KB / s, maxb = 4528KB / s, टकसाल = 30133msec, अधिकतम = 30133Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 33865/0, मर्ज = 4/0, टिक = 4258187/0, in_queue = 4284190, उपयोग = 99.72%

पढ़ें: iodepth = 64, bw = 4375.1KB / s, iops = 1093, avg = 58.43 मिसे

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [4252K / 0K / s] [1063/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3745
पढ़ें: io = 131544KB, bw = 4375.1KB / s, iops = 1093, runt = 30061msec
slat (usec): मिनट = 3, अधिकतम = 33, avg = 5.40, stdev = 2.58
clat (msec): मिनट = 1, अधिकतम = 358, avg = 58.49, stdev = 33.30
lat (msec): मिनट = 1, अधिकतम = 358, avg = 58.50, stdev = 33.30
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [4], 5.00 वां = [8], 10.00 वां = [14], 20.00 वां = [25],
| 30.00 वां = [36], 40.00 वां = [47], 50.00 वां = [59], 60.00 वां = [70],
| 70.00 वां = [81], 80.00 वां = [92], 90.00 वां = [103], 95.00 वां = [112],
| 99.00 वां = [122], 99.50 वां = [125], 99.90 वां = [157], 99.95 वां = [198],
| 99.99 वां = [289]
bw (KB / s): न्यूनतम = 3752, अधिकतम = 5024, प्रति = 99.93%, औसत = 4372.10, stdev = 221.75
lat (msec): 2 = 0.01%, 4 = 1.90%, 10 = 5.34%, 20 = 8.70%, 50 = 26.80%
lat (msec): 100 = 44.58%, 250 = 12.65%, 500 = 0.02%
सीपीयू: usr = 0.60%, sys = 1.54%, ctx = 32894, majf = 0, minus = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 99.8%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी: कुल = आर = 32886 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 131544KB, aggrb = 4375KB / s, minb = 4375KB / s, maxb = 4375KB / s, टकसाल = 30061msec, अधिकतम = 30061KB

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 32731/0, मर्ज = 1/0, टिक = 1911326/0, in_queue = 1913834, उपयोग = 99.71%

पढ़ें: iodepth = 32, bw = 4222.4KB / s, iops = 1055, avg = 30.31 मिसे

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [4112K / 0K / s] [1028/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3764
पढ़ें: io = 126804KB, bw = 4222.4KB / s, iops = 1055, runt = 30032msec
slat (usec): मिनट = 3, अधिकतम = 40, avg = 4.54, stdev = 2.16
clat (msec): न्यूनतम = 1, अधिकतम = 78, औसत = 30.31, stdev = 16.37
lat (msec): न्यूनतम = 1, अधिकतम = 78, औसत = 30.31, stdev = 16.37
क्लैट प्रतिशत (usec):
| 1.00 वां = [2864], 5.00 वां = [5024], 10.00 वां = [7840], 20.00 वां = [1350,000],
| 30.00 वां = [19072], 40.00 वां = [24704], 50.00 वां = [30080], 60.00 वां = [35584],
| 70.00 वां = [41216], 80.00 वां = [46336], 90.00 वां = [52480], 95.00 वां = [56576]
| 99.00 वां = [62208], 99.50 वां = [63744], 99.90 वां = [68096], 99.95 वां = [70144],
| 99.99 वां = [75264]
bw (KB / s): मिनट = 3904, अधिकतम = 4808, प्रति = 100.00%, औसत = 4222.38, stdev = 211.15
lat (msec): 2 = 0.01%, 4 = 3.33%, 10 = 10.52%, 20 = 17.80%, 50 = 54.29%
lat (मिसेक): 100 = 14.06%
cpu: usr = 0.68%, sys = 1.01%, ctx = 31715, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 99.9%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.1%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 31701 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 126804KB, aggrb = 4222KB / s, minb = 4222KB / s, maxb = 4222KB / s, टकसाल = 30032msec, maxt = 30032mec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 31575/0, मर्ज = 0/0, टिक = 956196/0, in_queue = 956760, उपयोग = 99.70%

पढ़ें: iodepth = 16, bw = 4097.2KB / s, iops = 1024, avg = 15971 सेकंड

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 16
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [3976K / 0K / s] [994/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3771
पढ़ें: io = 122984KB, bw = 4097.2KB / s, iops = 1024, runt = 30017msec
slat (usec): मिनट = 3, अधिकतम = 34, avg = 4.53, stdev = 2.15
clat (msec): मिनट = 1, अधिकतम = 40, औसत = 15.61, stdev = 7.83
lat (msec): न्यूनतम = 1, अधिकतम = 40, औसत = 15.62, स्टदेव = 7.83
क्लैट प्रतिशत (usec):
| 1.00 वां = [2736], 5.00 वां = [3760], 10.00 वां = [5024], 20.00 वां = [7649],
| 30.00 वां = [10304], 40.00 वां = [12864], 50.00 वां = [15424], 60.00 वां = [18048],
| 70.00 वां = [20608], 80.00 वां = [23168], 90.00 वां = [26240], 95.00 वां = [28288],
| 99.00 वां = [32128], 99.50 वां = [33536], 99.90 वां = [36096], 99.95 वां = [37120]
| 99.99 वां = [39168]
bw (KB / s): मिनट = 3944, अधिकतम = 4728, प्रति = 100.00%, औसत = 4103.32, stdev = 220.20
lat (msec): 2 = 0.01%, 4 = 6.07%, 10 = 22.92%, 20 = 39.08%, 50 = 31.93%
सीपीयू: usr = 0.59%, sys = 1.15%, ctx = 30756, majf = 0, minus = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 100.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.1%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 30746 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 122984KB, aggrb = 4097KB / s, minb = 4097KB / s, maxb = 4097KB / s, टकसाल = 30017msec, अधिकतम = 30017KB

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 30641/0, मर्ज = 0/0, टिक = 478130/0, in_queue = 478256, उपयोग = 99.70% ई

पढ़ें: iodepth = 8, bw = 4020.6KB / s, iops = 1005, avg = 7.95%

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 8
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [3888K / 0K / s] [972/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3778
पढ़ें: io = 120648KB, bw = 4020.6KB / s, iops = 1005, runt = 30008msec
slat (usec): मिनट = 3, अधिकतम = 124, avg = 5.39, stdev = 3.01
clat (msec): मिनट = 1, अधिकतम = 22, औसत = 7.95, स्टदेव = 3.37
lat (msec): मिनट = 1, अधिकतम = 22, औसत = 7.96, stdev = 3.37
क्लैट प्रतिशत (usec):
| 1.00 वां = [2608], 5.00 वां = [2992], 10.00 वां = [3504], 20.00 वां = [4012],
| 30.00 वां = [5728], 40.00 वां = [6816], 50.00 वां = [7840], 60.00 वां = [8768],
| 70.00 वां = [9920], 80.00 वां = [11072], 90.00 वां = [12480], 95.00 वां = [13632],
| 99.00 वां = [15936], 99.50 वां = [16768], 99.90 वां = [18304], 99.95 वां = [18816]
| 99.99 वां = [20096]
bw (KB / s): न्यूनतम = 3872, अधिकतम = 4640, प्रति = 100.00%, औसत = 4026.14, stdev = 215.32
lat (msec): 2 = 0.01%, 4 = 13.98%, 10 = 57.35%, 20 = 28.66%, 50 = 0.01%
cpu: usr = 0.96%, sys = 1.63%, ctx = 30168, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 100.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.1%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 30162 / डब्ल्यू = 0 / डी = 0, छोटा = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 120648KB, aggrb = 4020KB / s, minb = 4020KB / s, maxb = 4020KB / s, टकसाल = 30008msec, अधिकतम = 30008KB

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 30068/0, मर्ज = 0/0, टिक = 238837/0, in_queue = 238884, उपयोग = 99.72%

पढ़ें: iodepth = 4, bw = 3977.8KB / s, iops = 994, avg = 4016.37 usec

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 4
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [3860K / 0K / s] [965/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3785
पढ़ें: io = 119328KB, bw = 3977.8KB / s, iops = 994, runt = 30004msec
slat (usec): min = 3, max = 118, avg = 4.38, stdev = 2.36
clat (usec): मिनट = 1057, अधिकतम = 9386, avg = 4016.37, stdev = 983.10
lat (usec): मिनट = 1094, अधिकतम = 9390, avg = 4021.16, stdev = 983.13
क्लैट प्रतिशत (usec):
| 1.00 वां = [2608], 5.00 वां = [2736], 10.00 वां = [2896], 20.00 वां = [[2020],
| 30.00 वां = [3248], 40.00 वां = [3728], 50.00 वां = [3984], 60.00 वां = [4128],
| 70.00 वां = [4320], 80.00 वां = [4896], 90.00 वां = [5280], 95.00 वां = [5984],
| 99.00 वां = [7008], 99.50 वां = [7264], 99.90 वां = [8256], 99.95 वां = [8512]
| 99.99 वां = [9152]
bw (KB / s): मिनट = 3824, अधिकतम = 4584, प्रति = 100.00%, औसत = 3983.19, stdev = 212.25
lat (msec): 2 = 0.01%, 4 = 51.13%, 10 = 48.86%
सीपीयू: usr = 0.54%, sys = 1.12%, ctx = 29841, majf = 0, minus = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 29832 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 119328KB, aggrb = 3977KB / s, minb = 3977KB / s, maxb = 3977KB / s, टकसाल = 30004msec, अधिकतम = 30004,000ec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 29742/0, मर्ज = 0/0, टिक्स = 119303/0, inqueque = 119300, उपयोग = 99.71%

पढ़ें: iodepth = 1, bw = 3886.7KB / s, iops = 971, avg = 1018.74 usec

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 1
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [3752K / 0K / s] [938/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3796
पढ़ें: io = 116604KB, bw = 3886.7KB / s, iops = 971, runt = 30001msec
स्लैट (usec): मिनट = 4, अधिकतम = 133, एवीजी = 7.87, स्टदेव = 3.84
clat (usec): min = 676, अधिकतम = 1644, avg = 1018.74, stdev = 103.74
lat (usec): min = 691, अधिकतम = 1660, avg = 1027.08, stdev = 104.32
क्लैट प्रतिशत (usec):
| 1.00 वां = [844], 5.00 वां = [852], 10.00 वां = [868], 20.00 वां = [[8484,]
| 30.00 वां = [980], 40.00 वां = [996], 50.00 वां = [1012], 60.00 वां = [1096],
| 70.00 वां = [1112], 80.00 वां = [1112], 90.00 वां = [1128], 95.00 वां = [1144],
| 99.00 वां = [1192], 99.50 वां = [1224], 99.90 वां = [1240], 99.95 वां = [1352]
| 99.99 वां = [1416]
bw (KB / s): न्यूनतम = 3704, अधिकतम = 4408, प्रति = 100.00%, औसत = 3892.61, stdev = 197.78
lat (usec): 750 = 0.56%, 1000 = 46.23%
lat (मिसेक): 2 = 53.21%
सीपीयू: usr = 0.54%, sys = 1.95%, ctx = 29155, majf = 0, minus = 0
IO की गहराई: 1 = 100.0%, 2 = 0.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 29151 / डब्ल्यू = 0 / डी = 0, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 116604KB, aggrb = 3886KB / s, minb = 3886KB / s, maxb = 3886KB / s, टकसाल = 30001msec, अधिकतम = 30001Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 29065/0, मर्ज = 0/0, टिक = 29446/0, in_queue = 29433, उपयोग = 98.12%

अनुक्रमिक रीड माप:

  root @ host: ~ # dd if = / dev / sdb of = / dev / null iflag = direct bs = MM
 में 3790 + 0 रिकॉर्ड
 3790 + 0 रिकॉर्ड बनाया
 7948206080 बाइट्स (7.9 जीबी) कॉपी, 419.551 एस, 18.9 एमबी / एस

पढ़ना विश्लेषण:

पढ़ते समय, एक नियमितता स्पष्ट रूप से देखी जाती है: कतार आकार जितना बड़ा होता है, उतना अधिक IOPS और अधिक विलंब होता है। तदनुसार, पढ़ने के लिए ड्राइव का प्रदर्शन: iodepth = 8, bw = 4020.6KB / s, iops = 1005, avg = 7.95 मिसे ।

रिकॉर्ड: iodepth = 1024, bw = 358153 B / s, iops = 87, avg = 10136.40 मिसे

रूट @ होस्ट: ~ # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १०२४
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [0.1% किया गया] [0K / 4K / s] [0/1 iops] [eta 09h: 47m: 09s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3817
लिखना: io = 11136KB, bw = 358153 B / s, iops = 87, runt = 31839msec
slat (usec): न्यूनतम = 3, अधिकतम = 596124, avg = 10899.63, stdev = 65581.18
clat (msec): न्यूनतम = 1487, अधिकतम = 16067, avg = 10136.40, stdev = 2980.73
lat (msec): न्यूनतम = 1954, अधिकतम = 16067, avg = 10147.30, stdev = 2981.04
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [1958], 5.00 वां = [3392], 10.00 वां = [4948], 20.00 वां = [8359],
| 30.00 वां = [9896], 40.00 वां = [10421], 50.00 वां = [10814], 60.00 वां = [11207],
| 70.00 वां = [11731], 80.00 वां = [12387], 90.00 वां = [13304], 95.00 वां = [13698],
| 99.00 वां = [14353], 99.50 वां = [15008], 99.90 वां = [16057], 99.95 वां = [16057]
| 99.99 वां = [16057]
bw (KB / s): मिनट = 0, अधिकतम = 450, प्रति = 93.22%, avg = 325.33, stdev = 106.70
lat (मिसेक): 2000 = 1.19%,> = 2000 = 98.81%
सीपीयू: usr = 0.06%, sys = 0.03%, ctx = 211, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.3%, 16 = 0.6%, 32 = 1.1%,> = 64 = 97.7%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 99.9%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 2784, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 11136KB, aggrb = 349KB / s, minb = 349KB / s, maxb = 349KB / s, टकसाल = 31839msec, अधिकतम = 31939msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/2770, मर्ज = 0/0, टिक = 70/4360043, in_queue = 4409040, उपयोग = 99.94%

रिकॉर्ड: iodepth = 64, bw = 480082 B / s, iops = 117, avg = 54599 सेकंड

रूट @ होस्ट: ~ # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [0.2% किया गया] [0K / 36K / s] [0/9 iops] [eta 04h: 40m: 56s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3849
लिखना: io = 14500KB, bw = 480082 B / s, iops = 117, runt = 30002828ec
slat (usec): मिनट = 3, अधिकतम = 32, avg = 10.09, stdev = 2.61
clat (msec): मिनट = 1, अधिकतम = 2803, avg = 545.79, stdev = 512.00
lat (msec): मिनट = 1, अधिकतम = 2803, औसत = 545.80, stdev = 512.00
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [6], 5.00 वां = [12], 10.00 वां = [23], 20.00 वां = [120],
| 30.00 वां = [155], 40.00 वां = [251], 50.00 वां = [371], 60.00 वां = [553],
| 70.00 वां = [734], 80.00 वां = [963], 90.00 वां = [1319], 95.00 वां = [1565],
| 99.00 वां = [2024], 99.50 वां = [2180], 99.90 वां = [2507], 99.95 वां = [2606]
| 99.99 वां = [2802]
bw (KB / s): मिनट = 81, अधिकतम = 861, प्रति = 99.37%, avg = 465.04, stdev = 170.84
lat (msec): 2 = 0.03%, 4 = 0.03%, 10 = 4.39%, 20 = 4.77%, 50 = 5.63%
lat (msec): 100 = 2.34%, 250 = 22.79%, 500 = 17.38%, 750 = 13.46%, 1000 = 10.01%
lat (msec): 2000 = 18.15%,> = 2000 = 1.02%
cpu: usr = 0.32%, sys = 0.41%, ctx = 3626, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 0.4%, 32 = 0.9%,> = 64 = 98.3%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 3625, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 14500KB, aggrb = 468KB / s, minb = 468KB / s, maxb = 468KB / s, टकसाल = 30928msec, अधिकतम = 309Kmsec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/3619, मर्ज = 0/0, टिक = 67/1952100, in_queue = 1959030, उपयोग = 99.94%

रिकॉर्ड: iodepth = 32, bw = 536911 B / s, iops = 131, avg = 24.2.01%

रूट @ होस्ट: ~ # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 308K / s] [0/77 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3880
लिखना: io = 15960KB, bw = 536911 B / s, iops = 131, runt = 39392ec
slat (usec): मिनट = 3, अधिकतम = 29, avg = 10.21, stdev = 2.29
clat (msec): न्यूनतम = 1, अधिकतम = 1277, औसत = 244.01, स्टदेव = 222-90
lat (msec): न्यूनतम = 1, अधिकतम = 1277, avg = 244.02, stdev = 222.90
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [6], 5.00 वां = [10], 10.00 वां = [16], 20.00 वां = [33],
| 30.00 वां = [117], 40.00 वां = [141], 50.00 वां = [167], 60.00 वां = [301],
| 70.00 वां = [326], 80.00 वां = [408], 90.00 वां = [570], 95.00 वां = [685],
| 99.00 वां = [963], 99.50 वां = [1037], 99.90 वां = [1205], 99.95 वां = [1254]
| 99.99 वां = [1270]
bw (KB / s): मिनट = 111, अधिकतम = 814, प्रति = 99.65%, avg = 522.18, stdev = 146.44
lat (msec): 2 = 0.03%, 4 = 0.03%, 10 = 5.61%, 20 = 8.30%, 50 = 9.85%
lat (msec): 100 = 3.58%, 250 = 33.58%, 500 = 25.91%, 750 = 9.72%, 1000 = 2.63%
lat (मिसेक): 2000 = 0.75%
cpu: usr = 0.23%, sys = 0.61%, ctx = 3993, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 0.4%, 32 = 99.2%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.1%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 3990, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 15960KB, aggrb = 524KB / s, minb = 524KB / s, maxb = 524KB / s, टकसाल = 30439msec, अधिकतम = 30439msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/3987, मर्ज = 0/0, टिक = 70/966153, in_queue = 967613, उपयोग = 99.95%

रिकॉर्ड: iodepth = 16, bw = 578004 B / s, iops = 141, avg = 113.33 मिसे

रूट @ होस्ट: ~ # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १६
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 292K / s] [0/73 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3913
लिखना: io = 17028KB, bw = 578004 B / s, iops = 141, runt = 301674ec
slat (usec): मिनट = 3, अधिकतम = 33, avg = 9.80, stdev = 2.56
clat (msec): मिनट = 1, अधिकतम = 703, avg = 113.33, stdev = 112.35
lat (msec): मिनट = 1, अधिकतम = 703, avg = 113.34, stdev = 112.35
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [6], 5.00 वां = [8], 10.00 वां = [10], 20.00 वां = [16],
| 30.00 वां = [24], 40.00 वां = [38], 50.00 वां = [109], 60.00 वां = [131],
| 70.00 वां = [143], 80.00 वां = [172], 90.00 वां = [277], 95.00 वां = [347],
| 99.00 वां = [469], 99.50 वां = [482], 99.90 वां = [611], 99.95 वां = [685]
| 99.99 वां = [701]
bw (KB / s): न्यूनतम = 224, अधिकतम = 894, प्रति = 100.00%, औसत = 565.96, stdev = 161.13
lat (msec): 2 = 0.02%, 4 = 0.02%, 10 = 11.28%, 20 = 14.02%, 50 = 20.39%
lat (msec): 100 = 3.24%, 250 = 39.53%, 500 = 11.18%, 750 = 0.31%
cpu: usr = 0.16%, sys = 0.69%, ctx = 4259, majf = 0, minis = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 99.6%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.1%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 4257, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 17028KB, aggrb = 564KB / s, minb = 564KB / s, maxb = 564KB / s, टकसाल = 30167msec, अधिकतम = 30167msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/4255, मर्ज = 0/0, टिक = 73/480767, in_queue = 481510, उपयोग = 99.96%

रिकॉर्ड: iodepth = 8, bw = 592348 B / s, iops = 144, avg = 55.27 मिसे

रूट @ होस्ट: ~ # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 8
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 328K / s] [0/82 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3945
लिखना: io = 17428KB, bw = 592348 B / s, iops = 144, runt = 262828ec
slat (usec): न्यूनतम = 3, अधिकतम = 60, avg = 10.30, stdev = 2.35
clat (msec): मिनट = 1, अधिकतम = 439, avg = 55.27, stdev = 74.63
lat (msec): मिनट = 1, अधिकतम = 439, avg = 55.28, stdev = 74.63
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [6], 5.00 वां = [6], 10.00 वां = [8], 20.00 वां = [10],
| 30.00 वां = [12], 40.00 वां = [15], 50.00 वां = [17], 60.00 वां = [21],
| 70.00 वां = [29], 80.00 वां = [121], 90.00 वां = [130], 95.00 वां = [212],
| 99.00 वां = [322], 99.50 वां = [326], 99.90 वां = [433], 99.95 वां = [433],
| 99.99 वां = [441]
bw (KB / s): मिनट = 248, अधिकतम = 918, प्रति = 100.00%, औसत = 583.55, stdev = 168.80
lat (msec): 2 = 0.02%, 4 = 0.09%, 10 = 23.96%, 20 = 34.11%, 50 = 12.55%
lat (msec): 100 = 1.54%, 250 = 24.37%, 500 = 3.35%
cpu: usr = 0.39%, sys = 0.53%, ctx = 4363, majf = 0, minis = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 99.8%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.1%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 4357, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 17428KB, aggrb = 578KB / s, minb = 578KB / s, maxb = 578KB / s, टकसाल = 30128msec, अधिकतम = 30128Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/4347, मर्ज = 0/0, टिक = 70/238777, in_queue = 239110, उपयोग = 99.95%

रिकॉर्ड: iodepth = 4, bw = 605445 B / s, iops = 147, avg = 27.05 मिसे

रूट @ होस्ट: ~ # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 4
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 220K / s] [0/55 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 3977
लिखना: io = 17756KB, bw = 605445 B / s, iops = 147, runt = 33131ec
slat (usec): मिनट = 3, अधिकतम = 27, avg = 10.13, stdev = 2.30
clat (msec): मिनट = 3, अधिकतम = 429, औसत = 27.05, stdev = 51.71
lat (मिसेक): न्यूनतम = 3, अधिकतम = 429, एवीजी = 27.06, स्टदेव = 51.71
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [6], 5.00 वां = [6], 10.00 वां = [6], 20.00 वां = [6],
| 30.00 वां = [8], 40.00 वां = [8], 50.00 वां = [8], 60.00 वां = [8],
| 70.00 वां = [10], 80.00 वां = [11], 90.00 वां = [113], 95.00 वां = [117],
| 99.00 वां = [233], 99.50 वां = [306], 99.90 वां = [314], 99.95 वां = [314]
| 99.99 वां = [429]
bw (KB / s): न्यूनतम = 160, अधिकतम = 902, प्रति = 100.00%, औसत = 592.20, stdev = 151.52
lat (msec): 4 = 0.14%, 10 = 79.41%, 20 = 5.54%, 100 = 1.04%, 250 = 12.93%
lat (मिसेक): 500 = 0.95%
cpu: usr = 0.26%, sys = 0.68%, ctx = 4445, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 99.9%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 4439, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 17756KB, aggrb = 591KB / s, minb = 591KB / s, maxb = 591KB / s, टकसाल = 30031msec, अधिकतम = 30031Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/4432, मर्ज = 0/0, टिक = 70/119270, in_queue = 119460, उपयोग = 99.95%

रिकॉर्ड: iodepth = 2, bw = 613056 B / s, iops = 149, avg = 13.34 एमबीec

रूट @ होस्ट: ~ # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = २
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 316K / s] [0/79 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 4008
लिखना: io = 17984KB, bw = 613056 B / s, iops = 149, runt = 30039
slat (usec): न्यूनतम = 4, अधिकतम = 131, avg = 12.93, stdev = 4.61
clat (msec): न्यूनतम = 1, अधिकतम = 306, avg = 13.34, stdev = 35.30
lat (msec): मिनट = 2, अधिकतम = 306, औसत = 13.36, stdev = 35.30
क्लैट प्रतिशत (मिसे):
| 1.00 वां = [4], 5.00 वां = [4], 10.00 वां = [4], 20.00 वां = [4],
| 30.00 वां = [4], 40.00 वां = [4], 50.00 वां = [4], 60.00 वां = [4],
| 70.00 वां = [4], 80.00 वां = [4], 90.00 वां = [5], 95.00 वां = [109],
| 99.00 वां = [194], 99.50 वां = [200], 99.90 वां = [233], 99.95 वां = [302],
| 99.99 वां = [306]
bw (KB / s): न्यूनतम = 242, अधिकतम = 862, प्रति = 100.00%, औसत = 599.47, stdev = 132.12
lat (msec): 2 = 0.02%, 4 = 89.03%, 10 = 2.54%, 20 = 0.80%, 100 = 0.29%
lat (मिसेक): 250 = 7.23%, 500 = 0.09%
cpu: usr = 0.18%, sys = 0.85%, ctx = 4500, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 100.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 4496, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 17984KB, aggrb = 598KB / s, minb = 598KB / s, maxb = 598KB / s, टकसाल = 30039msec, अधिकतम = 30039msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/4485, मर्ज = 0/0, टिक्स = 74/59624, in_queue = 59697, उपयोग = 99.96%

रिकॉर्ड: iodepth = 1, bw = 618686 B / s, iops = 151, avg = 6.60 मिसे

रूट @ होस्ट: ~ # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 456K / s] [0/114 iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 4039
लिखना: io = 18128KB, bw = 618686 B / s, iops = 151, runt = 30004xec
slat (usec): मिनट = 5, अधिकतम = 42, avg = 14.46, stdev = 3.39
clat (msec): मिनट = 1, अधिकतम = 293, औसत = 6.60, stdev = 24.74
lat (msec): न्यूनतम = 1, अधिकतम = 293, औसत = 6.62, stdev = 24.74
क्लैट प्रतिशत (usec):
| 1.00 वां = [1720], 5.00 वां = [1752], 10.00 वां = [1800], 20.00 वां = [1832],
| 30.00 वां = [1848], 40.00 वां = [1864], 50.00 वां = [1912], 60.00 वां = [1944],
| 70.00 वां = [1976], 80.00 वां = [1992], 90.00 वां = [2024], 95.00 वां = [2848],
| 99.00 वां = [109056], 99.50 वां = [187392], 99.90 वां = [197632], 99.95 वां = [228352],
| 99.99 वां = [292864]
bw (KB / s): मिनट = 207, अधिकतम = 896, प्रति = 100.00%, औसत = 607.58, stdev = 153.16
lat (msec): 2 = 83.94%, 4 = 11.50%, 10 = 0.84%, 20 = 0.02%, 100 = 0.13%
lat (msec): 250 = 3.55%, 500 = 0.02%
cpu: usr = 0.13%, sys = 0.91%, ctx = 4540, majf = 0, minf = 0
IO की गहराई: 1 = 100.0%, 2 = 0.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी: कुल = आर = 0 / डब्ल्यू = 0 / डी = 4532, लघु = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 18128KB, aggrb = 604KB / s, minb = 604KB / s, maxb = 604KB / s, टकसाल = 30004msec, अधिकतम = 30004msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 84/4524, मर्ज = 0/0, टिक = 70/29663, in_queue = 29770, उपयोग = 99.24%

अनुक्रमिक लिखें माप:

  root @ host: ~ # dd if = / dev / zero of = / dev / sdb oflag = direct bs = 1M  
 dd: लेखन `/ देव / sdb ': डिवाइस पर कोई स्थान नहीं बचा
 में 7581 + 0 रिकॉर्ड
 7580 + 0 रिकॉर्ड बनाया
 7948206080 बाइट्स (7.9 जीबी) कॉपी, 555.815 एस, 14.3 एमबी / एस

रिकॉर्ड विश्लेषण:

रिकॉर्डिंग के साथ, सब कुछ अलग है। बड़ी कतार, MB / s और IOPS में गति कम है, और देरी अधिक है। तदनुसार, ड्राइव का लेखन प्रदर्शन: iodepth = 1, bw = 618686 B / s, iops = 151, avg = 6.60 मिसे।
अनुक्रमिक रिकॉर्डिंग के साथ, रिकॉर्डिंग के लिए निर्माता द्वारा वादा किए गए 90 एमबी / एस के करीब पहुंचना भी संभव नहीं था - अधिकतम गति 14.3 एमबी / एस है। मनमानी और रैखिक रिकॉर्डिंग के बीच गति का अंतर ध्यान देने योग्य है - 6 बार से अधिक।

टीम कक्षा 10 32 जीबी एसडी कार्ड (20 एमबी / एस तक)

पढ़ें: iodepth = 1024, bw = 5240.2KB / s, iops = 1310, avg = 773.34 msec

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 1024
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [5248K / 0K / s] [1312/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 4616
पढ़ें: io = 157824KB, bw = 5240.2KB / s, iops = 1310, runt = 30118msec
slat (usec): न्यूनतम = 2, अधिकतम = 25379, avg = 758.25, stdev = 4208.51
clat (msec): मिनट = 98, अधिकतम = 1956, avg = 773.34, stdev = 139.05
lat (msec): न्यूनतम = 122, अधिकतम = 1956, avg = 774.10, stdev = 139.16
क्लैट प्रतिशत (मिसे):
| 1.00 वें = [416], 5.00 वें = [685], 10.00 वें = [685], 20.00 वें = [209],
| 30.00 वां = [709], 40.00 वां = [734], 50.00 वां = [734], 60.00 वां = [758],
| 70.00 वां = [783], 80.00 वां = [807], 90.00 वां = [906], 95.00 वां = [1057],
| 99.00 वां = [1319], 99.50 वां = [1434], 99.90 वां = [1598], 99.95 वां = [1663]
| 99.99 वां = [1811]
bw (KB / s): मिनट = 5, अधिकतम = 5280, प्रति = 98.38%, avg = 5155.14, stdev = 688.17
lat (msec): 100 = 0.01%, 250 = 0.49%, 500 = 0.81%, 750 = 51.20%, 1000 = 40.98%
lat (मिसेक): 2000 = 6.53%
cpu: usr = 0.33%, sys = 0.66%, ctx = 1365, majf = 0, minf = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 99.8%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी: कुल = आर = 39456 / डब्ल्यू = 0 / डी = 0, छोटा = आर = 0 / डब्ल्यू = 0 / डी = 0

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 157824KB, aggrb = 5240KB / s, minb = 5240KB / s, maxb = 5240KB / s, टकसाल = 30118msec, अधिकतम = 30118Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 39187/0, मर्ज = 0/0, टिक = 4274397/0, in_queue = 4285950, उपयोग = 99.72%

पढ़ें: iodepth = 32, bw = 5107.6KB / s, iops = 1276, avg = 250.12 usec

रूट @ होस्ट: ~ # fio/read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
2.0.8
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [5112K / 0K / s] [1278/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 4622
पढ़ें: io = 153360KB, bw = 5107.6KB / s, iops = 1276, runt = 30026msec
slat (usec): न्यूनतम = 3, अधिकतम = 118, avg = 4.74, stdev = 2.30
clat (usec): मिनट = 900, अधिकतम = 66226, avg = 25052.12, stdev = 13-35.25
lat (usec): न्यूनतम = 936, अधिकतम = 66230, avg = 25057.28, stdev = 13451.24
क्लैट प्रतिशत (usec):
| 1.00 वां = [2384], 5.00 वां = [4016], 10.00 वां = [6368], 20.00 वां = [9572],
| 30.00 वां = [15808], 40.00 वां = [20352], 50.00 वां = [24960], 60.00 वां = [29568]
| 70.00 वां = [34048], 80.00 वां = [38656], 90.00 वां = [43264], 95.00 वां = [46336]
| 99.00 वां = [50944], 99.50 वां = [52480], 99.90 वां = [55552], 99.95 वां = [56064]
| 99.99 वां = [60672]
bw (KB / s): मिनट = 4864, अधिकतम = 5120, प्रति = 100.00%, औसत = 5108.00, stdev = 32.89
lat (usec): 1000 = 0.01%
lat (msec): 2 = 0.01%, 4 = 4.91%, 10 = 12.15%, 20 = 22.02%, 50 = 59.51%
lat (मिसेक): 100 = 1.40%
cpu: usr = 0.73%, sys = 1.43%, ctx = 38345, majf = 0, minus = 0
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 99.9%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=38340/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=153360KB, aggrb=5107KB/s, minb=5107KB/s, maxb=5107KB/s, mint=30026msec, maxt=30026msec

Disk stats (read/write):
sdb: ios=38192/0, merge=1/0, ticks=956237/0, in_queue=956730, util=99.71%

पढ़ें: iodepth = 16, bw = 4941.1KB / s, iops = 1235, avg = 12942.28 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [4944K/0K /s] [1236 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4626
read: io=148328KB, bw=4941.1KB/s, iops=1235, runt= 30014msec
slat (usec): min=3, max=118, avg= 4.83, stdev= 2.38
clat (usec): min=905, max=37620, avg=12942.28, stdev=6474.59
lat (usec): min=940, max=37624, avg=12947.54, stdev=6474.59
clat percentiles (usec):
| 1.00th=[ 2352], 5.00th=[ 3152], 10.00th=[ 4128], 20.00th=[ 6368],
| 30.00th=[ 8640], 40.00th=[10560], 50.00th=[12864], 60.00th=[14912],
| 70.00th=[17024], 80.00th=[19328], 90.00th=[21632], 95.00th=[23424],
| 99.00th=[26240], 99.50th=[27264], 99.90th=[29568], 99.95th=[30080],
| 99.99th=[31872]
bw (KB/s): min= 4920, max= 4976, per=100.00%, avg=4946.44, stdev=10.84
lat (usec): 1000=0.01%
lat (msec): 2=0.01%, 4=9.13%, 10=28.24%, 20=45.49%, 50=17.14%
cpu: usr=0.66%, sys=1.63%, ctx=37089, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=100.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=37082/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=148328KB, aggrb=4941KB/s, minb=4941KB/s, maxb=4941KB/s, mint=30014msec, maxt=30014msec

Disk stats (read/write):
sdb: ios=36956/0, merge=0/0, ticks=478014/0, in_queue=478134, util=99.71%

पढ़ें: iodepth = 8, bw = 4762.9KB / s, iops = 1190, avg = 6711.70 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [4756K/0K /s] [1189 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4635
read: io=142896KB, bw=4762.9KB/s, iops=1190, runt= 30007msec
slat (usec): min=3, max=122, avg= 5.18, stdev= 2.62
clat (usec): min=895, max=18630, avg=6711.70, stdev=2806.36
lat (usec): min=932, max=18635, avg=6717.32, stdev=2806.35
clat percentiles (usec):
| 1.00th=[ 2384], 5.00th=[ 2480], 10.00th=[ 3216], 20.00th=[ 4080],
| 30.00th=[ 4960], 40.00th=[ 5792], 50.00th=[ 6624], 60.00th=[ 7520],
| 70.00th=[ 8384], 80.00th=[ 9280], 90.00th=[10432], 95.00th=[11584],
| 99.00th=[13248], 99.50th=[14016], 99.90th=[15040], 99.95th=[15680],
| 99.99th=[17536]
bw (KB/s): min= 4744, max= 4808, per=100.00%, avg=4766.51, stdev=12.91
lat (usec): 1000=0.01%
lat (msec): 2=0.01%, 4=19.26%, 10=66.98%, 20=13.76%
cpu: usr=0.84%, sys=1.30%, ctx=35731, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=100.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=35724/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=142896KB, aggrb=4762KB/s, minb=4762KB/s, maxb=4762KB/s, mint=30007msec, maxt=30007msec

Disk stats (read/write):
sdb: ios=35613/0, merge=0/0, ticks=238850/0, in_queue=238857, util=99.71%

पढ़ें: iodepth = 4, bw = 4626.6KB / s, iops = 1156, avg = 3450.49 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [4628K/0K /s] [1157 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4640
read: io=138816KB, bw=4626.6KB/s, iops=1156, runt= 30004msec
slat (usec): min=3, max=111, avg= 5.17, stdev= 2.53
clat (usec): min=888, max=8495, avg=3450.49, stdev=810.23
lat (usec): min=924, max=8499, avg=3456.10, stdev=810.16
clat percentiles (usec):
| 1.00th=[ 2448], 5.00th=[ 2480], 10.00th=[ 2576], 20.00th=[ 2608],
| 30.00th=[ 2640], 40.00th=[ 3376], 50.00th=[ 3472], 60.00th=[ 3504],
| 70.00th=[ 3504], 80.00th=[ 4256], 90.00th=[ 4384], 95.00th=[ 5152],
| 99.00th=[ 5984], 99.50th=[ 6112], 99.90th=[ 6880], 99.95th=[ 7520],
| 99.99th=[ 7776]
bw (KB/s): min= 4616, max= 4656, per=100.00%, avg=4630.92, stdev= 8.59
lat (usec): 1000=0.01%
lat (msec): 2=0.01%, 4=74.99%, 10=25.00%
cpu: usr=0.60%, sys=1.50%, ctx=34710, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=34704/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=138816KB, aggrb=4626KB/s, minb=4626KB/s, maxb=4626KB/s, mint=30004msec, maxt=30004msec

Disk stats (read/write):
sdb: ios=34598/0, merge=0/0, ticks=119153/0, in_queue=119123, util=99.71%

पढ़ें: iodepth = 2, bw = 4608.8KB / s, iops = 1152, avg = 17.49 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [4608K/0K /s] [1152 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4646
read: io=138268KB, bw=4608.8KB/s, iops=1152, runt= 30001msec
slat (usec): min=3, max=125, avg= 6.25, stdev= 3.06
clat (usec): min=884, max=2286, avg=1727.08, stdev=53.30
lat (usec): min=920, max=2291, avg=1733.79, stdev=52.82
clat percentiles (usec):
| 1.00th=[ 1576], 5.00th=[ 1608], 10.00th=[ 1624], 20.00th=[ 1720],
| 30.00th=[ 1720], 40.00th=[ 1736], 50.00th=[ 1736], 60.00th=[ 1752],
| 70.00th=[ 1752], 80.00th=[ 1752], 90.00th=[ 1768], 95.00th=[ 1768],
| 99.00th=[ 1864], 99.50th=[ 1864], 99.90th=[ 2008], 99.95th=[ 2224],
| 99.99th=[ 2256]
bw (KB/s): min= 4600, max= 4624, per=100.00%, avg=4612.75, stdev= 8.15
lat (usec): 1000=0.01%
lat (msec): 2=99.90%, 4=0.10%
cpu: usr=0.61%, sys=1.60%, ctx=34578, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=34567/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=138268KB, aggrb=4608KB/s, minb=4608KB/s, maxb=4608KB/s, mint=30001msec, maxt=30001msec

Disk stats (read/write):
sdb: ios=34465/0, merge=0/0, ticks=59313/0, in_queue=59287, util=99.71%

पढ़ें: iodepth = 1, bw = 4593.6KB / s, iops = 1148, avg = 860.36 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [4592K/0K /s] [1148 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4650
read: io=137812KB, bw=4593.6KB/s, iops=1148, runt= 30001msec
slat (usec): min=4, max=119, avg= 7.87, stdev= 3.64
clat (usec): min=688, max=6641, avg=860.36, stdev=54.23
lat (usec): min=704, max=6655, avg=868.71, stdev=54.21
clat percentiles (usec):
| 1.00th=[ 724], 5.00th=[ 748], 10.00th=[ 836], 20.00th=[ 852],
| 30.00th=[ 852], 40.00th=[ 868], 50.00th=[ 868], 60.00th=[ 868],
| 70.00th=[ 868], 80.00th=[ 884], 90.00th=[ 884], 95.00th=[ 900],
| 99.00th=[ 980], 99.50th=[ 988], 99.90th=[ 1096], 99.95th=[ 1112],
| 99.99th=[ 1144]
bw (KB/s): min= 4568, max= 4624, per=100.00%, avg=4597.69, stdev=12.16
lat (usec): 750=4.97%, 1000=94.82%
lat (msec): 2=0.20%, 10=0.01%
cpu: usr=0.69%, sys=1.75%, ctx=34459, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=34453/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=137812KB, aggrb=4593KB/s, minb=4593KB/s, maxb=4593KB/s, mint=30001msec, maxt=30001msec

Disk stats (read/write):
sdb: ios=34352/0, merge=0/0, ticks=29370/0, in_queue=29347, util=97.83%

रिकॉर्ड: iodepth = 32, bw = 5960 B / s, iops = 1, avg = 21703,0001 सेकंड

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/0K /s] [0 /0 iops] [eta 107d:03h:32m:23s]
writetest: (groupid=0, jobs=1): err= 0: pid=11326
write: io=307200 B, bw=5960 B/s, iops=1, runt= 51535msec
slat (usec): min=3, max=26, avg=11.08, stdev= 6.44
clat (msec): min=684, max=49451, avg=21703.81, stdev=13250.41
lat (msec): min=684, max=49451, avg=21703.82, stdev=13250.41
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 2057], 10.00th=[ 4146], 20.00th=[ 8225],
| 30.00th=[11731], 40.00th=[16712], 50.00th=[16712], 60.00th=[16712],
| 70.00th=[16712], 80.00th=[16712], 90.00th=[16712], 95.00th=[16712],
| 99.00th=[16712], 99.50th=[16712], 99.90th=[16712], 99.95th=[16712],
| 99.99th=[16712]
bw (KB/s): min= 0, max= 5, per=97.78%, avg= 4.89, stdev= 0.75
lat (msec): 750=1.33%, 2000=2.67%, >=2000=96.00%
cpu: usr=0.01%, sys=0.00%, ctx=76, majf=0, minf=0
IO depths: 1=1.3%, 2=2.7%, 4=5.3%, 8=10.7%, 16=21.3%, 32=58.7%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=97.8%, 8=0.0%, 16=0.0%, 32=2.2%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=75, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=300KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=51535msec, maxt=51535msec

Disk stats (read/write):
sdb: ios=84/74, merge=0/0, ticks=70/1283090, in_queue=1308454, util=100.00%

रिकॉर्ड: iodepth = 16, bw = 5956 B / s, iops = 1, avg = 10826/8 gec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/0K /s] [0 /0 iops] [eta 84d:00h:53m:38s]
writetest: (groupid=0, jobs=1): err= 0: pid=18036
write: io=241664 B, bw=5956 B/s, iops=1, runt= 40571msec
slat (usec): min=3, max=25, avg=12.86, stdev= 5.71
clat (msec): min=684, max=24058, avg=10826.78, stdev=5773.72
lat (msec): min=684, max=24058, avg=10826.79, stdev=5773.72
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 1401], 10.00th=[ 2089], 20.00th=[ 4817],
| 30.00th=[ 6915], 40.00th=[ 9634], 50.00th=[11731], 60.00th=[13042],
| 70.00th=[14484], 80.00th=[15139], 90.00th=[16712], 95.00th=[16712],
| 99.00th=[16712], 99.50th=[16712], 99.90th=[16712], 99.95th=[16712],
| 99.99th=[16712]
bw (KB/s): min= 0, max= 5, per=97.78%, avg= 4.89, stdev= 0.75
lat (msec): 750=1.69%, 2000=3.39%, >=2000=94.92%
cpu: usr=0.01%, sys=0.00%, ctx=60, majf=0, minf=0
IO depths: 1=1.7%, 2=3.4%, 4=6.8%, 8=13.6%, 16=74.6%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=97.8%, 8=0.0%, 16=2.2%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=59, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=236KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=40571msec, maxt=40571msec

Disk stats (read/write):
sdb: ios=84/58, merge=0/0, ticks=67/552507, in_queue=566187, util=99.97%

रिकॉर्ड: iodepth = 8, bw = 5958 B / s, iops = 1, avg = 5404/6 gec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/0K /s] [0 /0 iops] [eta 73d:12h:46m:55s]
writetest: (groupid=0, jobs=1): err= 0: pid=22634
write: io=208896 B, bw=5958 B/s, iops=1, runt= 35061msec
slat (usec): min=3, max=27, avg=15.22, stdev= 4.75
clat (msec): min=685, max=10998, avg=5404.96, stdev=2526.07
lat (msec): min=685, max=10998, avg=5404.97, stdev=2526.07
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 1369], 10.00th=[ 1401], 20.00th=[ 2737],
| 30.00th=[ 4113], 40.00th=[ 4817], 50.00th=[ 6194], 60.00th=[ 6849],
| 70.00th=[ 6915], 80.00th=[ 7570], 90.00th=[ 8225], 95.00th=[ 8225],
| 99.00th=[10945], 99.50th=[10945], 99.90th=[10945], 99.95th=[10945],
| 99.99th=[10945]
bw (KB/s): min= 0, max= 5, per=97.78%, avg= 4.89, stdev= 0.75
lat (msec): 750=1.96%, 2000=9.80%, >=2000=88.24%
cpu: usr=0.00%, sys=0.01%, ctx=52, majf=0, minf=0
IO depths: 1=2.0%, 2=3.9%, 4=7.8%, 8=86.3%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=97.8%, 8=2.2%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=51, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=204KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=35061msec, maxt=35061msec

Disk stats (read/write):
sdb: ios=84/50, merge=0/0, ticks=70/255730, in_queue=261170, util=99.97%

रिकॉर्ड: iodepth = 4, bw = 5956 B / s, iops = 1, avg = 2706/3 xec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/0K /s] [0 /0 iops] [eta 67d:05h:30m:54s]
writetest: (groupid=0, jobs=1): err= 0: pid=26634
write: io=192512 B, bw=5956 B/s, iops=1, runt= 32322msec
slat (usec): min=3, max=25, avg=15.77, stdev= 3.33
clat (msec): min=684, max=4825, avg=2706.33, stdev=852.43
lat (msec): min=684, max=4825, avg=2706.34, stdev=852.43
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 1369], 10.00th=[ 1385], 20.00th=[ 2057],
| 30.00th=[ 2089], 40.00th=[ 2737], 50.00th=[ 2737], 60.00th=[ 2737],
| 70.00th=[ 3425], 80.00th=[ 3425], 90.00th=[ 3458], 95.00th=[ 4113],
| 99.00th=[ 4817], 99.50th=[ 4817], 99.90th=[ 4817], 99.95th=[ 4817],
| 99.99th=[ 4817]
bw (KB/s): min= 1, max= 5, per=98.22%, avg= 4.91, stdev= 0.60
lat (msec): 750=2.13%, 2000=10.64%, >=2000=87.23%
cpu: usr=0.01%, sys=0.00%, ctx=48, majf=0, minf=0
IO depths: 1=2.1%, 2=4.3%, 4=93.6%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=47, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=188KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=32322msec, maxt=32322msec

Disk stats (read/write):
sdb: ios=84/46, merge=0/0, ticks=67/121626, in_queue=124990, util=99.94%

रिकॉर्ड: iodepth = 2, bw = 5961 B / s, iops = 1, avg = 1358.91 मिसे

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/4K /s] [0 /1 iops] [eta 65d:03h:05m:34s]
writetest: (groupid=0, jobs=1): err= 0: pid=30700
write: io=184320 B, bw=5961 B/s, iops=1, runt= 30919msec
slat (usec): min=5, max=25, avg=16.40, stdev= 2.69
clat (msec): min=686, max=1400, avg=1358.91, stdev=102.85
lat (msec): min=686, max=1400, avg=1358.93, stdev=102.85
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 1369], 10.00th=[ 1369], 20.00th=[ 1369],
| 30.00th=[ 1369], 40.00th=[ 1369], 50.00th=[ 1369], 60.00th=[ 1369],
| 70.00th=[ 1369], 80.00th=[ 1369], 90.00th=[ 1385], 95.00th=[ 1401],
| 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401],
| 99.99th=[ 1401]
bw (KB/s): min= 5, max= 5, per=100.00%, avg= 5.00, stdev= 0.00
lat (msec): 750=2.22%, 2000=97.78%
cpu: usr=0.00%, sys=0.01%, ctx=46, majf=0, minf=0
IO depths: 1=2.2%, 2=97.8%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=45, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=180KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=30919msec, maxt=30919msec

Disk stats (read/write):
sdb: ios=84/44, merge=0/0, ticks=66/59776, in_queue=61210, util=99.94%

रिकॉर्ड: iodepth = 1, bw = 5960 B / s, iops = 1, avg = 687.15 मिसे

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/4K /s] [0 /1 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=1796
write: io=180224 B, bw=5960 B/s, iops=1, runt= 30237msec
slat (usec): min=19, max=26, avg=20.86, stdev= 1.44
clat (msec): min=684, max=715, avg=687.15, stdev= 6.12
lat (msec): min=684, max=715, avg=687.17, stdev= 6.12
clat percentiles (msec):
| 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 685],
| 30.00th=[ 685], 40.00th=[ 685], 50.00th=[ 685], 60.00th=[ 685],
| 70.00th=[ 685], 80.00th=[ 685], 90.00th=[ 685], 95.00th=[ 693],
| 99.00th=[ 717], 99.50th=[ 717], 99.90th=[ 717], 99.95th=[ 717],
| 99.99th=[ 717]
bw (KB/s): min= 5, max= 5, per=100.00%, avg= 5.00, stdev= 0.00
lat (msec): 750=100.00%
cpu: usr=0.01%, sys=0.00%, ctx=45, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=44, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=176KB, aggrb=5KB/s, minb=5KB/s, maxb=5KB/s, mint=30237msec, maxt=30237msec

Disk stats (read/write):
sdb: ios=84/43, merge=0/0, ticks=67/29550, in_queue=30230, util=99.94%

अनुक्रमिक लिखें माप:

 root @ host: ~ # dd if = / dev / zero of = / dev / sdb oflag = direct bs = 2M
dd: लेखन `/ देव / sdb ': डिवाइस पर कोई स्थान नहीं बचा है
में 15600 + 0 रिकॉर्ड
15599 + 0 का रिकॉर्ड बनाया
32714522624 बाइट्स (33 जीबी) कॉपी किए गए, 2212.11 एस, 14.8 एमबी / एस

रिकॉर्ड विश्लेषण:

रिकॉर्ड पर, किसी भी परिस्थिति में 1 से अधिक IOPS को निचोड़ना संभव नहीं था। तदनुसार, रिकॉर्डिंग के लिए ड्राइव का प्रदर्शन avg.latency <10 ms के लिए हमारी आवश्यकताओं को पूरा नहीं करता है, क्योंकि इसका प्रदर्शन है: iodepth = 1, bw = 5960 B / s, iops = 1, avg = 6,0.15 msec । हालांकि अनुक्रमिक रिकॉर्डिंग के साथ, ड्राइव वास्तव में कक्षा 10 - 14.8 एमबी / एस से मेल खाती है।

2GB SD कार्ड से पार करें

पढ़ें: iodepth = 1024, bw = 3800.9KB / s, iops = 950, avg = 1059.66 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [5.6% done] [3204K/0K /s] [801 /0 iops] [eta 08m:38s]
readtest: (groupid=0, jobs=1): err= 0: pid=4182
read: io=114640KB, bw=3800.9KB/s, iops=950, runt= 30162msec
slat (usec): min=2, max=68303, avg=1045.05, stdev=5824.60
clat (msec): min=136, max=1823, avg=1059.66, stdev=161.31
lat (msec): min=170, max=1823, avg=1060.71, stdev=161.40
clat percentiles (msec):
| 1.00th=[ 437], 5.00th=[ 938], 10.00th=[ 938], 20.00th=[ 971],
| 30.00th=[ 979], 40.00th=[ 1004], 50.00th=[ 1020], 60.00th=[ 1074],
| 70.00th=[ 1106], 80.00th=[ 1172], 90.00th=[ 1270], 95.00th=[ 1352],
| 99.00th=[ 1516], 99.50th=[ 1549], 99.90th=[ 1647], 99.95th=[ 1680],
| 99.99th=[ 1795]
bw (KB/s): min= 3, max= 4008, per=98.71%, avg=3750.79, stdev=502.34
lat (msec): 250=0.34%, 500=0.78%, 750=0.89%, 1000=34.54%, 2000=63.45%
cpu: usr=0.23%, sys=0.46%, ctx=1029, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=99.8%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued: total=r=28660/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=114640KB, aggrb=3800KB/s, minb=3800KB/s, maxb=3800KB/s, mint=30162msec, maxt=30162msec

Disk stats (read/write):
sdb: ios=28639/0, merge=20/0, ticks=4312340/0, in_queue=4312670, util=99.72%

पढ़ें: iodepth = 32, bw = 3610.3KB / s, iops = 902, avg = 35.45 मिसे

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [3608K/0K /s] [902 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4187
read: io=108436KB, bw=3610.3KB/s, iops=902, runt= 30036msec
slat (usec): min=3, max=122, avg= 5.34, stdev= 2.71
clat (msec): min=2, max=94, avg=35.45, stdev=19.17
lat (msec): min=2, max=94, avg=35.45, stdev=19.17
clat percentiles (usec):
| 1.00th=[ 3024], 5.00th=[ 5600], 10.00th=[ 9024], 20.00th=[15680],
| 30.00th=[22144], 40.00th=[28800], 50.00th=[35584], 60.00th=[41728],
| 70.00th=[48384], 80.00th=[54528], 90.00th=[61696], 95.00th=[65280],
| 99.00th=[72192], 99.50th=[74240], 99.90th=[78336], 99.95th=[79360],
| 99.99th=[84480]
bw (KB/s): min= 3584, max= 3640, per=100.00%, avg=3614.12, stdev=14.16
lat (msec): 4=2.71%, 10=8.99%, 20=14.90%, 50=45.97%, 100=27.43%
cpu: usr=0.61%, sys=1.22%, ctx=27123, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=99.9%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=27109/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=108436KB, aggrb=3610KB/s, minb=3610KB/s, maxb=3610KB/s, mint=30036msec, maxt=30036msec

Disk stats (read/write):
sdb: ios=26993/0, merge=3/0, ticks=955993/0, in_queue=956693, util=99.71%

पढ़ें: iodepth = 16, bw = 3283.4KB / s, iops = 820, avg = 194/4 gec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [3268K/0K /s] [817 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4193
read: io=98564KB, bw=3283.4KB/s, iops=820, runt= 30019msec
slat (usec): min=3, max=121, avg= 5.26, stdev= 2.57
clat (msec): min=2, max=50, avg=19.48, stdev= 9.76
lat (msec): min=2, max=50, avg=19.49, stdev= 9.76
clat percentiles (usec):
| 1.00th=[ 3024], 5.00th=[ 4576], 10.00th=[ 6112], 20.00th=[ 9536],
| 30.00th=[12736], 40.00th=[16064], 50.00th=[19328], 60.00th=[22656],
| 70.00th=[25728], 80.00th=[29056], 90.00th=[32640], 95.00th=[35072],
| 99.00th=[39168], 99.50th=[40704], 99.90th=[43776], 99.95th=[44800],
| 99.99th=[45824]
bw (KB/s): min= 3224, max= 3328, per=100.00%, avg=3286.44, stdev=21.13
lat (msec): 4=4.12%, 10=17.36%, 20=30.77%, 50=47.74%, 100=0.01%
cpu: usr=0.72%, sys=1.05%, ctx=24650, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=99.9%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=24641/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=98564KB, aggrb=3283KB/s, minb=3283KB/s, maxb=3283KB/s, mint=30019msec, maxt=30019msec

Disk stats (read/write):
sdb: ios=24552/0, merge=0/0, ticks=477986/0, in_queue=478184, util=99.71%

पढ़ें: iodepth = 8, bw = 2836.8KB / s, iops = 709, avg = 11.27 मिसे

root@host:~# fio ./read.ini
\readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [2828K/0K /s] [707 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4198
read: io=85132KB, bw=2836.8KB/s, iops=709, runt= 30011msec
slat (usec): min=3, max=124, avg= 5.84, stdev= 2.78
clat (msec): min=1, max=30, avg=11.27, stdev= 4.81
lat (msec): min=2, max=30, avg=11.28, stdev= 4.81
clat percentiles (usec):
| 1.00th=[ 3536], 5.00th=[ 4048], 10.00th=[ 4832], 20.00th=[ 6432],
| 30.00th=[ 8032], 40.00th=[ 9536], 50.00th=[11072], 60.00th=[12608],
| 70.00th=[14144], 80.00th=[15808], 90.00th=[17792], 95.00th=[19328],
| 99.00th=[22144], 99.50th=[23168], 99.90th=[25216], 99.95th=[26240],
| 99.99th=[27520]
bw (KB/s): min= 2752, max= 2920, per=100.00%, avg=2839.36, stdev=32.02
lat (msec): 2=0.01%, 4=4.87%, 10=38.22%, 20=53.46%, 50=3.44%
cpu: usr=0.78%, sys=1.11%, ctx=21293, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=100.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=21283/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=85132KB, aggrb=2836KB/s, minb=2836KB/s, maxb=2836KB/s, mint=30011msec, maxt=30011msec

Disk stats (read/write):
sdb: ios=21212/0, merge=0/0, ticks=238853/0, in_queue=238904, util=99.71%

पढ़ें: iodepth = 4, bw = 2447.4KB / s, iops = 611, avg = 3/3 gec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [2440K/0K /s] [610 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4205
read: io=73440KB, bw=2447.4KB/s, iops=611, runt= 30008msec
slat (usec): min=3, max=133, avg= 6.30, stdev= 3.41
clat (msec): min=1, max=15, avg= 6.53, stdev= 1.66
lat (msec): min=1, max=15, avg= 6.53, stdev= 1.66
clat percentiles (usec):
| 1.00th=[ 3632], 5.00th=[ 4256], 10.00th=[ 4512], 20.00th=[ 5024],
| 30.00th=[ 5408], 40.00th=[ 5984], 50.00th=[ 6432], 60.00th=[ 6816],
| 70.00th=[ 7264], 80.00th=[ 7840], 90.00th=[ 8768], 95.00th=[ 9536],
| 99.00th=[11200], 99.50th=[11840], 99.90th=[12992], 99.95th=[13632],
| 99.99th=[15168]
bw (KB/s): min= 2408, max= 2530, per=100.00%, avg=2450.12, stdev=23.74
lat (msec): 2=0.01%, 4=2.61%, 10=94.20%, 20=3.18%
cpu: usr=0.93%, sys=0.84%, ctx=18373, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=18360/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=73440KB, aggrb=2447KB/s, minb=2447KB/s, maxb=2447KB/s, mint=30008msec, maxt=30008msec

Disk stats (read/write):
sdb: ios=18300/0, merge=0/0, ticks=119210/0, in_queue=119227, util=99.71%

पढ़ें: iodepth = 2, bw = 2387.9KB / s, iops = 596, avg = 3337-14 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [2416K/0K /s] [604 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4209
read: io=71640KB, bw=2387.9KB/s, iops=596, runt= 30002msec
slat (usec): min=3, max=35, avg= 9.64, stdev= 3.52
clat (usec): min=1185, max=5737, avg=3337.08, stdev=456.90
lat (usec): min=1213, max=5749, avg=3347.25, stdev=456.89
clat percentiles (usec):
| 1.00th=[ 1992], 5.00th=[ 2608], 10.00th=[ 2640], 20.00th=[ 2928],
| 30.00th=[ 3184], 40.00th=[ 3280], 50.00th=[ 3440], 60.00th=[ 3504],
| 70.00th=[ 3568], 80.00th=[ 3664], 90.00th=[ 3824], 95.00th=[ 3920],
| 99.00th=[ 4704], 99.50th=[ 4832], 99.90th=[ 4896], 99.95th=[ 4960],
| 99.99th=[ 5728]
bw (KB/s): min= 2352, max= 2432, per=100.00%, avg=2389.15, stdev=20.15
lat (msec): 2=1.14%, 4=96.04%, 10=2.82%
cpu: usr=0.73%, sys=1.76%, ctx=17923, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=17910/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=71640KB, aggrb=2387KB/s, minb=2387KB/s, maxb=2387KB/s, mint=30002msec, maxt=30002msec

Disk stats (read/write):
sdb: ios=17854/0, merge=0/0, ticks=59277/0, in_queue=59274, util=99.71%

पढ़ें: iodepth = 1, bw = 2362.2KB / s, iops = 590, avg = 1680.12 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [2364K/0K /s] [591 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4216
read: io=70868KB, bw=2362.2KB/s, iops=590, runt= 30001msec
slat (usec): min=4, max=125, avg=10.06, stdev= 4.19
clat (usec): min=929, max=3056, avg=1680.19, stdev=318.18
lat (usec): min=942, max=3071, avg=1690.77, stdev=318.27
clat percentiles (usec):
| 1.00th=[ 972], 5.00th=[ 988], 10.00th=[ 1096], 20.00th=[ 1592],
| 30.00th=[ 1608], 40.00th=[ 1624], 50.00th=[ 1640], 60.00th=[ 1848],
| 70.00th=[ 1864], 80.00th=[ 1880], 90.00th=[ 1976], 95.00th=[ 1992],
| 99.00th=[ 2864], 99.50th=[ 2864], 99.90th=[ 2992], 99.95th=[ 2992],
| 99.99th=[ 3024]
bw (KB/s): min= 2320, max= 2408, per=100.00%, avg=2364.36, stdev=22.11
lat (usec): 1000=8.00%
lat (msec): 2=88.82%, 4=3.18%
cpu: usr=0.58%, sys=1.23%, ctx=17729, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=17717/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=70868KB, aggrb=2362KB/s, minb=2362KB/s, maxb=2362KB/s, mint=30001msec, maxt=30001msec

Disk stats (read/write):
sdb: ios=17664/0, merge=0/0, ticks=29536/0, in_queue=29517, util=98.39%

अनुक्रमिक रीड माप:

 root @ host: ~ # dd if = / dev / sdb of = / dev / null iflag = direct bs = MM
में 957 + 1 रिकॉर्ड
957 + 1 रिकॉर्ड बनाया
2007498752 बाइट्स (2.0 जीबी) कॉपी, 195.504 एस, 10.3 एमबी / एस

पढ़ना विश्लेषण:

रैखिक पढ़ने की गति कक्षा 10 से मेल खाती है, हालांकि फ्लैश ड्राइव को लंबे समय तक खरीदा गया था और "सरल" था। पढ़ें ड्राइव प्रदर्शन: iodepth = 4, bw = 2447.4KB / s, iops = 611, avg = 6.53 मिसे ।

रिकॉर्ड: iodepth = 1024, bw = 36269 B / s, iops = 8, avg = 3712644 gec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/0K /s] [0 /0 iops] [eta 49710d:06h:27m:29s]
writetest: (groupid=0, jobs=1): err= 0: pid=4234
write: io=1660.0KB, bw=36269 B/s, iops=8, runt= 46867msec
slat (usec): min=3, max=4088.5K, avg=77160.94, stdev=520319.60
clat (msec): min=14843, max=46865, avg=37126.84, stdev=10034.11
lat (msec): min=18784, max=46865, avg=37204.00, stdev=9985.34
clat percentiles (msec):
| 1.00th=[16712], 5.00th=[16712], 10.00th=[16712], 20.00th=[16712],
| 30.00th=[16712], 40.00th=[16712], 50.00th=[16712], 60.00th=[16712],
| 70.00th=[16712], 80.00th=[16712], 90.00th=[16712], 95.00th=[16712],
| 99.00th=[16712], 99.50th=[16712], 99.90th=[16712], 99.95th=[16712],
| 99.99th=[16712]
bw (KB/s): min= 0, max= 0, per=0.00%, avg= 0.00, stdev= 0.00
lat (msec): >=2000=100.00%
cpu: usr=0.00%, sys=0.03%, ctx=138, majf=0, minf=0
IO depths: 1=0.2%, 2=0.5%, 4=1.0%, 8=1.9%, 16=3.9%, 32=7.7%, >=64=84.8%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=100.0%
issued: total=r=0/w=0/d=415, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1660KB, aggrb=35KB/s, minb=35KB/s, maxb=35KB/s, mint=46867msec, maxt=46867msec

Disk stats (read/write):
sdb: ios=84/413, merge=3/0, ticks=694/5472010, in_queue=5509883, util=100.00%

रिकॉर्ड: iodepth = 32, bw = 35509 B / s, iops = 8, avg = 3679.60 msec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.1% done] [0K/0K /s] [0 /0 iops] [eta 17h:24m:15s]
writetest: (groupid=0, jobs=1): err= 0: pid=4264
write: io=1156.0KB, bw=35509 B/s, iops=8, runt= 33336msec
slat (usec): min=3, max=24, avg=11.15, stdev= 3.16
clat (msec): min=116, max=8382, avg=3679.60, stdev=1873.21
lat (msec): min=116, max=8382, avg=3679.62, stdev=1873.21
clat percentiles (msec):
| 1.00th=[ 255], 5.00th=[ 660], 10.00th=[ 1004], 20.00th=[ 1647],
| 30.00th=[ 2409], 40.00th=[ 3228], 50.00th=[ 3916], 60.00th=[ 4686],
| 70.00th=[ 5014], 80.00th=[ 5342], 90.00th=[ 5669], 95.00th=[ 6128],
| 99.00th=[ 7767], 99.50th=[ 7963], 99.90th=[ 8356], 99.95th=[ 8356],
| 99.99th=[ 8356]
bw (KB/s): min= 3, max= 53, per=98.61%, avg=33.53, stdev= 8.02
lat (msec): 250=0.69%, 500=3.11%, 750=2.42%, 1000=3.46%, 2000=14.88%
lat (msec): >=2000=75.43%
cpu: usr=0.00%, sys=0.06%, ctx=292, majf=0, minf=0
IO depths: 1=0.3%, 2=0.7%, 4=1.4%, 8=2.8%, 16=5.5%, 32=89.3%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=99.6%, 8=0.0%, 16=0.0%, 32=0.4%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=289, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1156KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=33336msec, maxt=33336msec

Disk stats (read/write):
sdb: ios=84/287, merge=3/0, ticks=114/1004880, in_queue=1013170, util=100.00%

रिकॉर्ड: iodepth = 16, bw = 35257 B / s, iops = 8, avg = 1852,000 सेंकेंड

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.1% done] [0K/4K /s] [0 /1 iops] [eta 16h:24m:47s]
writetest: (groupid=0, jobs=1): err= 0: pid=4295
write: io=1088.0KB, bw=35257 B/s, iops=8, runt= 31599msec
slat (usec): min=3, max=23, avg=11.47, stdev= 2.19
clat (msec): min=257, max=3878, avg=1852.79, stdev=850.88
lat (msec): min=257, max=3878, avg=1852.81, stdev=850.88
clat percentiles (msec):
| 1.00th=[ 293], 5.00th=[ 498], 10.00th=[ 619], 20.00th=[ 938],
| 30.00th=[ 1336], 40.00th=[ 1598], 50.00th=[ 1958], 60.00th=[ 2311],
| 70.00th=[ 2474], 80.00th=[ 2606], 90.00th=[ 2868], 95.00th=[ 3032],
| 99.00th=[ 3720], 99.50th=[ 3785], 99.90th=[ 3884], 99.95th=[ 3884],
| 99.99th=[ 3884]
bw (KB/s): min= 7, max= 49, per=98.50%, avg=33.49, stdev= 7.39
lat (msec): 500=5.15%, 750=9.93%, 1000=5.51%, 2000=29.78%, >=2000=49.63%
cpu: usr=0.00%, sys=0.06%, ctx=274, majf=0, minf=0
IO depths: 1=0.4%, 2=0.7%, 4=1.5%, 8=2.9%, 16=94.5%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=99.6%, 8=0.0%, 16=0.4%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=272, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1088KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=31599msec, maxt=31599msec

Disk stats (read/write):
sdb: ios=84/270, merge=3/0, ticks=107/486823, in_queue=490777, util=100.00%

रिकॉर्ड: iodepth = 8, bw = 35293 B / s, iops = 8, avg = 925.17 मिसे

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/36K /s] [0 /9 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=4327
write: io=1064.0KB, bw=35293 B/s, iops=8, runt= 30871msec
slat (usec): min=4, max=18, avg=11.48, stdev= 1.40
clat (msec): min=214, max=2006, avg=925.17, stdev=385.05
lat (msec): min=214, max=2006, avg=925.18, stdev=385.05
clat percentiles (msec):
| 1.00th=[ 245], 5.00th=[ 281], 10.00th=[ 400], 20.00th=[ 519],
| 30.00th=[ 652], 40.00th=[ 848], 50.00th=[ 971], 60.00th=[ 1074],
| 70.00th=[ 1205], 80.00th=[ 1303], 90.00th=[ 1385], 95.00th=[ 1483],
| 99.00th=[ 1729], 99.50th=[ 1926], 99.90th=[ 2008], 99.95th=[ 2008],
| 99.99th=[ 2008]
bw (KB/s): min= 13, max= 47, per=99.46%, avg=33.81, stdev= 6.65
lat (msec): 250=1.13%, 500=18.05%, 750=15.79%, 1000=18.05%, 2000=46.62%
lat (msec): >=2000=0.38%
cpu: usr=0.04%, sys=0.02%, ctx=269, majf=0, minf=0
IO depths: 1=0.4%, 2=0.8%, 4=1.5%, 8=97.4%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=99.6%, 8=0.4%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=266, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1064KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=30871msec, maxt=30871msec

Disk stats (read/write):
sdb: ios=84/264, merge=3/0, ticks=110/240687, in_queue=242880, util=100.00%

रिकॉर्ड: iodepth = 4, bw = 35262 B / s, iops = 8, avg = 462/6 gec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/40K /s] [0 /10 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=4359
write: io=1052.0KB, bw=35262 B/s, iops=8, runt= 30549msec
slat (usec): min=4, max=22, avg=11.73, stdev= 1.45
clat (msec): min=153, max=909, avg=462.96, stdev=145.01
lat (msec): min=153, max=909, avg=462.98, stdev=145.01
clat percentiles (msec):
| 1.00th=[ 200], 5.00th=[ 258], 10.00th=[ 281], 20.00th=[ 334],
| 30.00th=[ 379], 40.00th=[ 412], 50.00th=[ 453], 60.00th=[ 494],
| 70.00th=[ 537], 80.00th=[ 578], 90.00th=[ 660], 95.00th=[ 734],
| 99.00th=[ 824], 99.50th=[ 889], 99.90th=[ 914], 99.95th=[ 914],
| 99.99th=[ 914]
bw (KB/s): min= 21, max= 47, per=99.67%, avg=33.89, stdev= 6.47
lat (msec): 250=4.18%, 500=58.17%, 750=33.46%, 1000=4.18%
cpu: usr=0.00%, sys=0.06%, ctx=266, majf=0, minf=0
IO depths: 1=0.4%, 2=0.8%, 4=98.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=263, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1052KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=30549msec, maxt=30549msec

Disk stats (read/write):
sdb: ios=84/262, merge=3/0, ticks=113/120700, in_queue=121243, util=100.00%

रिकॉर्ड: iodepth = 2, bw = 35341 B / s, iops = 8, avg = 231.40 xec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/40K /s] [0 /10 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=4389
write: io=1040.0KB, bw=35341 B/s, iops=8, runt= 30133msec
slat (usec): min=5, max=38, avg=13.54, stdev= 2.05
clat (msec): min=68, max=434, avg=231.40, stdev=66.36
lat (msec): min=68, max=434, avg=231.41, stdev=66.36
clat percentiles (msec):
| 1.00th=[ 109], 5.00th=[ 137], 10.00th=[ 151], 20.00th=[ 174],
| 30.00th=[ 194], 40.00th=[ 208], 50.00th=[ 225], 60.00th=[ 239],
| 70.00th=[ 260], 80.00th=[ 281], 90.00th=[ 330], 95.00th=[ 351],
| 99.00th=[ 404], 99.50th=[ 408], 99.90th=[ 437], 99.95th=[ 437],
| 99.99th=[ 437]
bw (KB/s): min= 22, max= 48, per=100.00%, avg=34.09, stdev= 6.12
lat (msec): 100=0.77%, 250=65.00%, 500=34.23%
cpu: usr=0.00%, sys=0.05%, ctx=263, majf=0, minf=0
IO depths: 1=0.4%, 2=99.6%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=260, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1040KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=30133msec, maxt=30133msec

Disk stats (read/write):
sdb: ios=84/258, merge=3/0, ticks=110/59687, in_queue=59927, util=100.00%

रिकॉर्ड: iodepth = 1, bw = 35,230 B / s, iops = 8, avg = 116.23 मिसे

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/40K /s] [0 /10 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=4419
write: io=1036.0KB, bw=35230 B/s, iops=8, runt= 30112msec
slat (usec): min=13, max=33, avg=16.24, stdev= 2.64
clat (msec): min=24, max=279, avg=116.23, stdev=46.96
lat (msec): min=24, max=279, avg=116.25, stdev=46.96
clat percentiles (msec):
| 1.00th=[ 35], 5.00th=[ 46], 10.00th=[ 56], 20.00th=[ 74],
| 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 114], 60.00th=[ 127],
| 70.00th=[ 139], 80.00th=[ 155], 90.00th=[ 176], 95.00th=[ 200],
| 99.00th=[ 262], 99.50th=[ 269], 99.90th=[ 281], 99.95th=[ 281],
| 99.99th=[ 281]
bw (KB/s): min= 21, max= 47, per=99.56%, avg=33.85, stdev= 6.35
lat (msec): 50=7.34%, 100=31.66%, 250=59.85%, 500=1.16%
cpu: usr=0.02%, sys=0.04%, ctx=265, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=259, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=1036KB, aggrb=34KB/s, minb=34KB/s, maxb=34KB/s, mint=30112msec, maxt=30112msec

Disk stats (read/write):
sdb: ios=84/257, merge=3/0, ticks=110/29853, in_queue=30003, util=99.98%

अनुक्रमिक लिखें माप:

 root @ host: ~ # dd if = / dev / zero of = / dev / sdb oflag = direct bs = 2M
dd: लेखन `/ देव / sdb ': डिवाइस पर कोई स्थान नहीं बचा है
में 958 + 0 रिकॉर्ड
957 + 0 का रिकॉर्ड बनाया
2007498752 बाइट्स (2.0 जीबी) कॉपी, 392.872 एस, 5.1 एमबी / एस

रिकॉर्ड विश्लेषण:

ड्राइव से निर्दिष्ट विलंब स्तर प्राप्त करने में विफल। एक दिलचस्प तथ्य यह है कि कतार की लंबाई की परवाह किए बिना, IOPS मान स्थिर था - 8. मीडिया के लिए अनुक्रमिक लिखना पढ़ने की तुलना में धीमा है और कक्षा 10 के अनुरूप नहीं है। निकटतम स्तर: iodepth = 1, bw / 35230 B / s, iops = 8 avg = 116.23 मिसे ।

SSD OCZ-AGILITY3 60 GB

पढ़ें: iodepth = 1024, bw = 54321KB / s, iops = 13580, avg = 75005ecec

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [55834K/0K /s] [13.7K/0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=25162
read: io=1592.6MB, bw=54321KB/s, iops=13580, runt= 30012msec
slat (usec): min=2, max=3715, avg=71.91, stdev=384.44
clat (msec): min=11, max=184, avg=75.25, stdev= 6.46
lat (msec): min=11, max=184, avg=75.32, stdev= 6.47
bw (KB/s): min=46128, max=55432, per=99.85%, avg=54239.90, stdev=1183.86
cpu: usr=2.08%, sys=5.65%, ctx=12877, majf=0, minf=536
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued r/w/d: total=407567/0/0, short=0/0/0

lat (msec): 20=0.03%, 50=0.10%, 100=99.16%, 250=0.71%

Run status group 0 (all jobs):
READ: io=1592.6MB, aggrb=54320KB/s, minb=55624KB/s, maxb=55624KB/s, mint=30012msec, maxt=30012msec

Disk stats (read/write):
sdd: ios=406300/0, merge=7/0, ticks=4261556/0, in_queue=4262475, util=99.75%

पढ़ें: iodepth = 128, bw = 49115KB / s, iops = 12278, avg = 10416.41 usec

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=128
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [48656K/0K /s] [11.9K/0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=25422
read: io=1439.5MB, bw=49115KB/s, iops=12278, runt= 30011msec
slat (usec): min=2, max=141, avg= 5.67, stdev= 2.73
clat (usec): min=213, max=110027, avg=10416.41, stdev=5804.65
lat (usec): min=217, max=110030, avg=10422.32, stdev=5804.64
bw (KB/s): min= 0, max=54056, per=32.25%, avg=15840.70, stdev=23083.02
cpu: usr=6.68%, sys=15.09%, ctx=309545, majf=0, minf=151
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued r/w/d: total=368494/0/0, short=0/0/0
lat (usec): 250=0.01%, 500=0.03%, 750=0.13%, 1000=0.22%
lat (msec): 2=1.38%, 4=8.11%, 10=40.02%, 20=47.88%, 50=1.99%
lat (msec): 100=0.24%, 250=0.01%

Run status group 0 (all jobs):
READ: io=1439.5MB, aggrb=49114KB/s, minb=50293KB/s, maxb=50293KB/s, mint=30011msec, maxt=30011msec

Disk stats (read/write):
sdd: ios=367410/0, merge=5/0, ticks=3824886/0, in_queue=3825505, util=99.76%

पढ़ें: iodepth = 64, bw = 52705KB / s, iops = 13176, avg = 4849.37 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [54562K / 0K / s] [13.4K / 0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25203
पढ़ें: io = 1544.5MB, bw = 52705KB / s, iops = 13176, runt = 3000xmsec
slat (usec): न्यूनतम = 2, अधिकतम = 162, avg = 5.55, stdev = 2.82
clat (usec): मिनट = 173, अधिकतम = 28179, avg = 4849.37, stdev = 2171.93
lat (usec): मिनट = 194, अधिकतम = 28185, avg = 4855.17, stdev = 471712
bw (KB / s): मिनट = 0, अधिकतम = 53784, प्रति = 49.18%, औसत = 25921.64, stdev = 26461.21
सीपीयू: usr = 7.18%, sys = 16.42%, ctx = 328087, majf = 0, minf = 87
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी r / w / d: कुल = 395367/0/0, छोटा = 0/0/0
lat (usec): 250 = 0.01%, 500 = 0.17%, 750 = 0.64%, 1000 = 0.99%
lat (msec): 2 = 5.23%, 4 = 29.45%, 10 = 61.81%, 20 = 1.65%, 50 = 0.04%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 1544.5MB, aggrb = 52705KB / s, minb = 53969KB / s, maxb = 53969KB / s, टकसाल = 30006msec, अधिकतम = 3000 mmsec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 394198/0, मर्ज = 2/0, टिक = 1909902/0, in_queue = 1910098, उपयोग = 99.75%

पढ़ें: iodepth = 32, bw = 47885KB / s, iops = 11971, avg = 268.11 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (एफ = 1): [आर] [100.0% किया गया] [43970K / 0K / s] [10.8K / 0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25226
पढ़ें: io = 1403.3MB, bw = 47885KB / s, iops = 11971, runt = 3000,000msec
slat (usec): मिनट = 3, अधिकतम = 121, avg = 6.51, stdev = 2.75
clat (usec): मिनट = 94, अधिकतम = 9940, avg = 2664.11, stdev = 1397.42
lat (usec): न्यूनतम = 109, अधिकतम = 9945, avg = 2670.88, stdev = 1397.38
bw (KB / s): मिनट = 36160, अधिकतम = 55408, प्रति = 100.16%, avg = 47963.66, stdev = 5087.19
cpu: usr = 5.78%, sys = 14.95%, ctx = 302737, majf = 0, minf = 55
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 100.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.1%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 359175/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.01%, 250 = 2.09%, 500 = 7.79%, 750 = 4.82%, 1000 = 2.75%
lat (msec): 2 = 5.04%, 4 = 53.76%, 10 = 23.75%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 1403.3MB, aggrb = 47885KB / s, minb = 49034KB / s, maxb = 49034KB / s, टकसाल = 30003msec, अधिकतम = 30003Kec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 358185/0, मर्ज = 0/0, टिक = 953875/0, in_queue = 953911, उपयोग = 99.74%

पढ़ें: iodepth = 16, bw = 48238KB / s, iops = 12059, avg = 1316.15 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 16
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [53555K / 0K / s] [13.8K / 0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25280
पढ़ें: io = 1413.4MB, bw = 48238KB / s, iops = 12059, runt = 30002msec
slat (usec): न्यूनतम = 4, अधिकतम = 118, avg = 8.38, stdev = 3.34
clat (usec): मिनट = 84, अधिकतम = 52237, avg = 1316.15, stdev = 743.98
lat (usec): न्यूनतम = 104, अधिकतम = 52246, avg = 1324.79, stdev = 744.00
bw (KB / s): मिनट = 34160, अधिकतम = 53896, प्रति = 99.86%, avg = 48168.54, stdev = 6020.67
सीपीयू: usr = 5.31%, sys = 15.42%, ctx = 306267, majf = 0, minf = 39
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 100.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.1%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 361811/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.02%, 250 = 5.06%, 500 = 9.22%, 750 = 5.69%, 1000 = 6.44%
lat (msec): 2 = 57.38%, 4 = 16.17%, 10 = 0.01%, 50 = 0.01%, 100 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 1413.4MB, aggrb = 48238KB / s, minb = 49395KB / s, maxb = 49395KB / s, टकसाल = 30002msec, maxt - 30002msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 360786/0, मर्ज = 0/0, टिक = 475948/0, in_queue = 475940, उपयोग = 99.77%

पढ़ें: iodepth = 8, bw = 47698KB / s, iops = 11924, avg = 660.11 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 8
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [50597K / 0K / s] [12.4K / 0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25299
पढ़ें: io = 1397.5MB, bw = 47698KB / s, iops = 11924, runt = 30001msec
slat (usec): न्यूनतम = 3, अधिकतम = 143, avg = 8.44, stdev = 3.31
clat (usec): मिनट = 64, अधिकतम = 52445, avg = 660.16, stdev = 445.75
lat (usec): मिनट = 73, अधिकतम = 52454, avg = 668.87, stdev = 445.74
bw (KB / s): न्यूनतम = 26688, अधिकतम = 51840, प्रति = 100.06%, औसत = 47725.07, stdev = 6097.29
सीपीयू: usr = 5.36%, sys = 15.34%, ctx = 300814, majf = 0, minf = 31
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 100.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.1%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 357747/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.06%, 250 = 7.35%, 500 = 19.37%, 750 = 44.03%, 1000 = 17.18%
lat (msec): 2 = 11.77%, 4 = 0.23%, 10 = 0.01%, 50 = 0.01%, 100 =%%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 1397.5MB, aggrb = 47698KB / s, minb = 48842KB / s, maxb = 48842KB / s, टकसाल = 30001msec, maxt - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 356802/0, मर्ज = 0/0, टिक = 236589/0, in_queue = 236581, उपयोग = 99.74%

पढ़ें: iodepth = 4, bw = 44827KB / s, iops = 11206, avg = 345.88 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 4
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [47525K / 0K / s] [11.7K / 0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25319
पढ़ें: io = 1313.4MB, bw = 44827KB / s, iops = 11206, runt = 30001msec
slat (usec): न्यूनतम = 3, अधिकतम = 128, avg = 8.73, stdev = 3.41
clat (usec): min = 60, max = 44760, avg = 345.88, stdev = 197.72
lat (usec): मिनट = 69, अधिकतम = 44769, avg = 354.90, stdev = 197.62
bw (KB / s): मिनट = 37792, अधिकतम = 47280, प्रति = 99.96%, avg = 44805.83, stdev = 2312.44
सीपीयू: usr = 5.01%, sys = 15.25%, ctx = 282863, majf = 0, minf = 28
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 336211/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.09%, 250 = 19.26%, 500 = 71.01%, 750 = 9.05%, 1000 = 0.02%
lat (msec): 2 = 0.55%, 4 = 0.01%, 10 = 0.01%, 50 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 1313.4MB, aggrb = 44826KB / s, minb = 45902KB / s, maxb = 45902KB / s, टकसाल = 30001msec, maxt - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 335261/0, मर्ज = 0/0, टिक = 116934/0, in_queue = 116921, उपयोग = 99.75%

पढ़ें: iodepth = 2, bw = 32546KB / s, iops = 8136, avg = 234.51 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 2
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [34082K / 0K / s] [8321/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25331
पढ़ें: io = 976420KB, bw = 32546KB / s, iops = 8136, runt = 30001msec
slat (usec): न्यूनतम = 4, अधिकतम = 135, avg = 8.94, stdev = 3.14
clat (usec): मिनट = 82, अधिकतम = 44081, avg = 234.51, stdev = 146.58
lat (usec): मिनट = 101, अधिकतम = 44089, avg = 243.73, stdev = 146.52
bw (KB / s): मिनट = 27816, अधिकतम = 33888, प्रति = 99.96%, avg = 32532.88, stdev = 1031.17
cpu: usr = 3.82%, sys = 11.54%, ctx = 214442, majf = 0, minf = 25
IO की गहराई: 1 = 0.1%, 2 = 100.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 244105/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.32%, 250 = 63.16%, 500 = 36.21%, 750 = 0.01%, 1000 = 0.02%
lat (msec): 2 = 0.28%, 4 = 0.01%, 10 = 0.01%, 50 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 976420KB, aggrb = 32546KB / s, minb = 33327KB / s, maxb = 33327KB / s, टकसाल = 30001msec, maxt - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 243444/0, मर्ज = 0/0, टिक = 57717/0, in_queue = 57707, उपयोग = 99.70%

पढ़ें: iodepth = 1, bw = 19336KB / s, iops = 4834, avg = 1933.02 usec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 1
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [19505K / 0K / s] [4762/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25357
पढ़ें: io = 580104KB, bw = 19336KB / s, iops = 4834, runt = 30001msec
slat (usec): न्यूनतम = 4, अधिकतम = 103, avg = 8.59, stdev = 2.31
clat (usec): मिनट = 52, अधिकतम = 4069, avg = 196.02, stdev = 45.26
lat (usec): मिनट = 58, अधिकतम = 4078, avg = 204.88, stdev = 45.45
bw (KB / s): मिनट = 18624, अधिकतम = 19936, प्रति = 100.05%, avg = 19346.31, stdev = 295.36
cpu: usr = 2.32%, sys = 6.80%, ctx = 145027, majf = 0, minus = 25
IO की गहराई: 1 = 100.0%, 2 = 0.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 145026/0/0, छोटा = 0/0/0
lat (usec): 100 = 0.27%, 250 = 98.77%, 500 = 0.85%, 750 = 0.01%, 1000 = 0.02%
lat (मिसेक): 2 = 0.09%, 4 = 0.01%, 10 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 580104KB, aggrb = 19336KB / s, minb = 19800KB / s, maxb = 19800KB / s, टकसाल = 30001msec, maxt = 30000msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 144605/0, मर्ज = 0/0, टिक = 28537/0, in_queue = 28528, उपयोग = 95.12%

अनुक्रमिक रीड माप:

  root @ host # dd if = / dev / sdd of = / dev / null iflag = direct bs = 2M 
 में 28620 + 1 रिकॉर्ड
 28620 + 1 रिकॉर्ड बनाया
 60022480896 बाइट्स (60 जीबी) कॉपी, 238.535 एस, 252 एमबी / एस

पढ़ना विश्लेषण:

पैटर्न भी दिखाई देता है: कतार जितनी बड़ी, उतनी ही अधिक IOPS और अधिक देरी। तदनुसार, पढ़ने के लिए ड्राइव का प्रदर्शन: पढ़ें: iodepth = 64, bw = 52705KB / s, iops = 13176, avg = 4849.37 usec । 252 एमबी / एस की मापित रैखिक रीड गति निर्माता द्वारा घोषित एक से कम हो जाती है (अधिकतम पढ़ें: 525 एमबी / एस तक)।

रिकॉर्ड: iodepth = 1024, bw = 71064KB / s, iops = 17765, avg = 57.55 मिसे

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १०२४
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71737K / s] [0 / 17.6K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25502
लिखना: io = 2082.6MB, bw = 71064KB / s, iops = 17765, runt = 30008msec
स्लैट (usec): न्यूनतम = 2, अधिकतम = 49835, औसत = 54.11, stdev = 424.63
clat (msec): मिनट = 7, अधिकतम = 163, औसत = 57.55, स्टदेव = 9.97
lat (msec): मिनट = 7, अधिकतम = 163, औसत = 57.60, स्टदेव = 9.98
bw (KB / s): मिनट = 61960, अधिकतम = 74416, प्रति = 100.02%, avg = 71074.07, stdev = 3099.18
सीपीयू: usr = 2.65%, sys = 10.56%, ctx = 16632, majf = 0, minf = 23
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी r / w / d: कुल = 0/533119/0, लघु = 0/0/0

lat (msec): 10 = 0.01%, 20 = 0.04%, 50 = 6.73%, 100 = 91.88%, 250 = 1.35%

रन स्थिति समूह 0 (सभी कार्य):
राइट: io = 2082.6MB, aggrb = 71063KB / s, minb = 72769KB / s, maxb = 72769KB / s, टकसाल = 30008msec, maxt - 30008msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/531357, मर्ज = 0/14, टिक = 0/4256081, in_queue = 4256786, उपयोग = 99.74%

रिकॉर्ड: iodepth = 512, bw = 70673KB / s, iops = 17668, avg = 28.92 मिसे

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = ५११
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71751K / s] [0 / 17.6K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25524
लिखना: io = 2070.2MB, bw = 70673KB / s, iops = 17668, runt = 30007msec
slat (usec): न्यूनतम = 2, अधिकतम = 48135, औसत = 54.43, stdev = 429.52
clat (msec): मिनट = 5, अधिकतम = 138, एवीजी = 28.92, स्टदेव = 7.88
lat (msec): न्यूनतम = 7, अधिकतम = 138, एवीजी = 28.97, स्टदेव = 7.88
bw (KB / s): मिनट = 66355, अधिकतम = 73584, प्रति = 100.10%, avg = 70740.36, stdev = 2833.32
cpu: usr = 2.69%, sys = 10.19%, ctx = 16510, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी r / w / d: कुल = 0/530174/0, लघु = 0/0/0

lat (msec): 10 = 0.01%, 20 = 0.17%, 50 = 97.07%, 100 = 2.74%, 250 =%%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 2070.2MB, aggrb = 70673KB / s, minb = 72369KB / s, maxb = 72369KB / s, टकसाल = 30007msec, maxt - 30007msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/528541, merge = 0/12, ticks = 0/4257407, in_queue = 4258063, उपयोग = 99.75%

रिकॉर्ड: iodepth = 256, bw = 70731KB / s, iops = 17682, avg = 14.42 मिसे

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४४०-४१०, ioengine = libaio, iodepth = २५६
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71315K / s] [0 / 17.5K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25546
लिखना: io = 2072.1MB, bw = 70731KB / s, iops = 17682, runt = 30010msec
slat (usec): न्यूनतम = 2, अधिकतम = 49650, औसत = 54.45, stdev = 426.61
clat (msec): न्यूनतम = 2, अधिकतम = 119, औसत = 14.42, स्टदेव = 6.41
lat (msec): न्यूनतम = 2, अधिकतम = 119, औसत = 14.48, stdev = 6.42
bw (KB / s): मिनट = 65992, अधिकतम = 73437, प्रति = 100.02%, avg = 70748.44, stdev = 2926.02
cpu: usr = 2.60%, sys = 9.86%, ctx = 16555, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी r / w / d: कुल = 0/530661/0, लघु = 0/0/0

lat (msec): 4 = 0.01%, 10 = 17.81%, 20 = 76.24%, 50 = 4.75%, 100 = 1.18%
lat (मिसेक): 250 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 2072.1MB, aggrb = 70731KB / s, minb = 72428KB / s, maxb = 72428KB / s, टकसाल = 30010msec, मैक्सिमम - 30010msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/528998, merge = 0/11, ticks = 0/4278359, in_queue = 4278963, उपयोग = 99.75%

रिकॉर्ड: iodepth = 128, bw = 70591KB / s, iops = 17647, avg = 7244.71 usec

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४२०-४१०, ioengine = libaio, iodepth = १२ (
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71909K / s] [0 / 17.6K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25576
लिखना: io = 2068.7MB, bw = 70591KB / s, iops = 17647, runt = 30008msec
slat (usec): न्यूनतम = 2, अधिकतम = 163, avg = 5.88, stdev = 4.40
clat (usec): मिनट = 484, अधिकतम = 108710, avg = 7244.71, stdev = 5168.71
lat (usec): मिनट = 487, अधिकतम = 108714, avg = 7250.84, stdev = 5878.65
bw (KB / s): मिनट = 65860, अधिकतम = 73405, प्रति = 100.14%, avg = 70691.51, stdev = 2874.92
cpu: usr = 7.44%, sys = 17.22%, ctx = 387944, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी r / w / d: कुल = 0/529576/0, लघु = 0/0/0
lat (usec): 500 = 0.01%, 750 = 0.01%, 1000 = 0.31%
lat (msec): 2 = 5.26%, 4 = 15.84%, 10 = 60.46%, 20 = 16.73%, 50 = 1.00%
lat (msec): 100 = 0.39%, 250 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 2068.7MB, aggrb = 70591KB / s, minb = 72285KB / s, maxb = 72285KB / s, टकसाल = 30008msec, maxt - 30008msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/527794, मर्ज = 0/8, टिक्स = 0/3821818, in_queue = 3822381, उपयोग = 99.72%

रिकॉर्ड: iodepth = 64, bw = 70635KB / s, iops = 17658, avg = 3616.35 usec

root @ होस्ट # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71446K / s] [0 / 17.5K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25602
लिखना: io = 2069.8MB, bw = 70635KB / s, iops = 17658, runt = 30005msec
slat (usec): मिनट = 2, अधिकतम = 160, avg = 5.85, stdev = 4.73
clat (usec): min = 487, max = 61425, avg = 3616.35, stdev = 445457
lat (usec): न्यूनतम = 504, अधिकतम = 61431, avg = 3622.46, stdev = 2845.16
bw (KB / s): मिनट = 66011, अधिकतम = 73784, प्रति = 100.03%, avg = 70656.08, stdev = 2903.02
cpu: usr = 7.83%, sys = 16.87%, ctx = 383027, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/529849/0, लघु = 0/0/0
lat (usec): 500 = 0.01%, 750 = 0.03%, 1000 = 0.99%
lat (msec): 2 = 16.88%, 4 = 46.75%, 10 = 34.56%, 20 = 0.51%, 50 = 0.25%
lat (मिसेक): 100 = 0.03%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 2069.8MB, aggrb = 70634KB / s, minb = 72329KB / s, maxb = 72329KB / s, टकसाल = 30005msec, maxt - 30005msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/528157, मर्ज = 0/3, टिक्स = 0/1908453, in_queue = 1908547, उपयोग = 99.74%

रिकॉर्ड: iodepth = 32, bw = 70448KB / s, iops = 17611, avg = 1808.25 usec

root @ होस्ट # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 72024K / s] [0 / 17.6K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25630
लिखना: io = 2064.2MB, bw = 70448KB / s, iops = 17611, runt = 3000,000msec
slat (usec): न्यूनतम = 3, अधिकतम = 472, avg = 6.86, stdev = 4.85
clat (usec): न्यूनतम = 361, अधिकतम = 64001, avg = 1808.25, stdev = 1900.05
lat (usec): न्यूनतम = 381, अधिकतम = 64006, avg = 1815.36, stdev = 1899.96
bw (KB / s): मिनट = 64232, अधिकतम = 73584, प्रति = 100.13%, avg = 70539.47, stdev = 2978.82
सीपीयू: usr = 7.51%, sys = 16.93%, ctx = 376150, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 100.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.1%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/528410/0, लघु = 0/0/0
lat (usec): 500 = 0.08%, 750 = 1.38%, 1000 = 25.44%
lat (msec): 2 = 27.79%, 4 = 44.06%, 10 = 1.10%, 20 = 0.01%, 50 = 0.14%
lat (मिसेक): 100 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 2064.2MB, aggrb = 70447KB / s, minb = 72138KB / s, maxb = 72138KB / s, टकसाल = 30003msec, maxt - 30003msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/526823, मर्ज = 0/0, टिक = 0/951988, in_queue = 951967, उपयोग = 99.74%

रिकॉर्ड: iodepth = 16, bw = 70562KB / s, iops = 17640, avg = 897.30 usec

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १६
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 71696K / s] [0 / 17.6K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25666
लिखना: io = 2067.4MB, bw = 70562KB / s, iops = 17640, runt = 30001msec
slat (usec): न्यूनतम = 4, अधिकतम = 160, avg = 7.91, stdev = 4.52
clat (usec): न्यूनतम = 134, अधिकतम = 48672, avg = 897.30, stdev = 1390.50
lat (usec): मिनट = 143, अधिकतम = 48678, avg = 905.46, stdev = 1390.18
bw (KB / s): मिनट = 65424, अधिकतम = 74296, प्रति = 100.03%, avg = 70583.68, stdev = 2998.17
cpu: usr = 6.75%, sys = 17.48%, ctx = 376455, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 100.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.1%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/529233/0, लघु = 0/0/0
lat (usec): 250 = 0.52%, 500 = 46.44%, 750 = 16.68%, 1000 = 8.85%
lat (msec): 2 = 14.06%, 4 = 13.36%, 10 = 0.01%, 50 = 0.07%

रन स्थिति समूह 0 (सभी कार्य):
राइट: io = 2067.4MB, aggrb = 70562KB / s, minb = 72255KB / s, maxb = 72255KB / s, टकसाल = 30001msec, मैक्सिमम - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/527771, मर्ज = 0/0, टिक्स = 0/474172, in_queue = 474137, उपयोग = 99.74%

रिकॉर्ड: iodepth = 8, bw = 68056KB / s, iops = 17014, avg = 460.47kec

root @ होस्ट # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 8
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 60592K / s] [0 / 14.8K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25718
लिखना: io = 1993.1MB, bw = 68056KB / s, iops = 17014, runt = 30001 मिलियन
slat (usec): न्यूनतम = 4, अधिकतम = 153, औसत = 7.96, stdev = 4.44
clat (usec): मिनट = 45, अधिकतम = 55053, avg = 460.47, stdev = 1040-65
lat (usec): मिनट = 50, अधिकतम = 55059, avg = 468.67, stdev = 1040.38
bw (KB / s): मिनट = 47096, अधिकतम = 74344, प्रति = 100.44%, avg = 68355.95, stdev = 6706.70
cpu: usr = 6.40%, sys = 17.64%, ctx = 373251, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 100.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.1%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/510439/0, छोटा = 0/0/0
lat (usec): 50 = 0.01%, 100 = 1.25%, 250 = 65.56%, 500 = 6.91%, 750 = 11.48%
lat (usec): 1000 = 2.55%
lat (msec): 2 = 9.06%, 4 = 3.14%, 10 = 0.02%, 20 = 0.01%, 50 = 0.03%
lat (मिसेक): 100 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
राइट: io = 1993.1MB, aggrb = 68056KB / s, minb = 69689KB / s, maxb = 69689KB / s, टकसाल = 30001msec, अधिकतम = 30001,000ec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/509333, मर्ज = 0/0, टिक = 0/234860, in_queue = 234810, उपयोग = 99.74%

रिकॉर्ड: iodepth = 4, bw = 54118KB / s, iops = 13529, avg = 10.5.05ec

root @ होस्ट # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 4
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 69414K / s] [0 / 16.1K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25739
लिखना: io = 1585.6MB, bw = 54118KB / s, iops = 13529, runt = 30001msec
slat (usec): न्यूनतम = 4, अधिकतम = 148, औसत = 8.58, stdev = 3.86
clat (usec): मिनट = 22, अधिकतम = 53292, avg = 285.05, stdev = 732.96
lat (usec): न्यूनतम = 36, अधिकतम = 53299, avg = 293.89, stdev = 732.88
bw (KB / s): मिनट = 41992, अधिकतम = 71504, प्रति = 99.55%, avg = 53871.80, stdev = 6853.35
सीपीयू: usr = 5.90%, sys = 16.46%, ctx = 341954, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/405896/0, छोटा = 0/0/0
lat (usec): 50 = 2.69%, 100 = 43.57%, 250 = 1.37%, 500 = 46.21%, 750 = 1.71%
lat (usec): 1000 = 0.58%
lat (msec): 2 = 2.73%, 4 = 1.05%, 10 = 0.07%, 20 = 0.01%, 50 = 0.02%
lat (मिसेक): 100 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
राइट: io = 1585.6MB, aggrb = 54117KB / s, minb = 55416KB / s, maxb = 55416KB / s, टकसाल = 30001msec, मैक्सिमम - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/404392, मर्ज = 0/0, टिक = 0/116249, in_queue = 116226, उपयोग = 99.72%

रिकॉर्ड: iodepth = 2, bw = 55449KB / s, iops = 13862, avg = 133.14 usec

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = २
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 52981K / s] [0 / 12.1K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25799
लिखना: io = 1624.6MB, bw = 55449KB / s, iops = 13862, runt = 30001msec
slat (usec): न्यूनतम = 4, अधिकतम = 121, avg = 9.00, stdev = 3.99
clat (usec): मिनट = 8, अधिकतम = 47598, avg = 133.14, stdev = 495.36
lat (usec): न्यूनतम = 38, अधिकतम = 47603, avg = 142.43, stdev = 495.31
bw (KB / s): मिनट = 41704, अधिकतम = 74514, प्रति = 100.17%, औसत = 55540.66, stdev = 8889.68
सीपीयू: usr = 6.80%, sys = 17.36%, ctx = 355805, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 100.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/415881/0, लघु = 0/0/0
lat (usec): 10 = 0.01%, 20 = 0.06%, 50 = 50.54%, 100 = 3.83%, 250 = 42.08%
lat (usec): 500 = 0.83%, 750 = 0.57%, 1000 = 0.13%
lat (msec): 2 = 1.64%, 4 = 0.29%, 10 = 0.02%, 50 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 1624.6MB, aggrb = 55448KB / s, minb = 56779KB / s, maxb = 56779KB / s, टकसाल = 30001msec, मैक्सिमम - 30001msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/414844, मर्ज = 0/0, टिक्स = 0/56656, in_queue = 56639, उपयोग = 99.60%

रिकॉर्ड: iodepth = 1, bw = 52320KB / s, iops = 13079, avg = 65.35 usec

root @ होस्ट # fio ./write.ini
रिटेटेस्ट: (जी = 0): आरडब्ल्यू = रैंडराइटाइट, बीएस = ४३०-४४० / ४०४-४१०, ioengine = libaio, iodepth = १
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 52297K / s] [0 / 12.8K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25822
लिखना: io = 1532.9MB, bw = 52320KB / s, iops = 13079, runt = 30001msec
slat (usec): न्यूनतम = 5, अधिकतम = 99, avg = 8.85, stdev = 2.53
clat (usec): min = 0, अधिकतम = 48971, avg = 65.35, stdev = 311.65
lat (usec): न्यूनतम = 37, अधिकतम = 48981, avg = 74.47, stdev = 311.67
bw (KB / s): मिनट = 41920, अधिकतम = 73824, प्रति = 99.98%, avg = 52310.10, stdev = 6877.76
सीपीयू: usr = 6.74%, sys = 17.84%, ctx = 392397, majf = 0, minf = 22
IO की गहराई: 1 = 100.0%, 2 = 0.0%, 4 = 0.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/392410/0, छोटा = 0/0/0
lat (usec): 2 = 0.01%, 4 = 0.01%, 10 = 0.01%, 20 = 0.01%, 50 = 47.18%
lat (usec): 100 = 51.47%, 250 = 0.59%, 500 = 0.18%, 750 = 0.19%, 1000 = 0.17%
lat (msec): 2 = 0.18%, 4 = 0.02%, 10 = 0.01%, 50 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
राइट: io = 1532.9MB, aggrb = 52319KB / s, minb = 53575KB / s, maxb = 53575KB / s, टकसाल = 30001msec, अधिकतम = 30001,000ec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 0/391034, मर्ज = 0/0, टिक्स = 0/26366, in_queue = 26344, उपयोग = 87.84%

अनुक्रमिक लिखें माप:

  root @ host # dd if = / dev / zero of = / dev / sdd oflag = direct bs = 2M
 dd: लेखन `/ देव / sdd ': डिवाइस पर कोई स्थान नहीं बचा
 में 28621 + 0 रिकॉर्ड
 28620 + 0 रिकॉर्ड बनाया
 60022480896 बाइट्स (60 जीबी) कॉपी, 238.875 एस, 251 एमबी / एस

रिकॉर्ड विश्लेषण:

ध्यान दें कि avg.latency देरी से IOPS के गैर-रेखीय पैटर्न। रिकॉर्ड: iodepth = 128, bw = 70591KB / s, iops = 17647, avg = 7244.71 usec । 251 एमबी / एस की मापित रैखिक लेखन गति निर्माता द्वारा घोषित एक से कम हो जाती है (अधिकतम लिखें: 500 एमबी / एस तक)।

अद्यतन : जैसा कि अमराओ ने सुझाव दिया है , एसएसडी रिकॉर्ड परीक्षण को अधिक समय तक किया जाना चाहिए। इसलिए, 10 घंटे के लिए एक अतिरिक्त परीक्षण शुरू किया गया था। Iodepth संख्या को 64 चुना गया था, क्योंकि समय की एक छोटी अवधि में यह कतार की लंबाई सबसे प्रभावी हो गई थी। कॉन्फ़िगरेशन फ़ाइल निम्नानुसार है:

write.ini

[Writetest]
blockize = 4k
फ़ाइल नाम = / देव / sdd
rw = randwrite
प्रत्यक्ष = १
शौकीन = ०
ioengine = लाइबियो
आयोडपथ = 64

रनटाइम = 36000
time_based

परिणामस्वरूप, IOPS और bw संकेतक 2 गुना से अधिक घट गए:

रिकॉर्डिंग 10 घंटे: iodepth = 64, bw = 32310KB / s, iops = 8077, avg = 7912.32

root @ host] # fio ./write.ini
writetest: (g = 0): rw = randwrite, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [w] [100.0% किया गया] [0K / 42369K / s] [0 / 10.4K iops] [eta 00m: 00s]
writetest: (groupid = 0, jobs = 1): इरेट = 0: pid = 25904
लिखना: io = 1109.3GB, bw = 32310KB / s, iops = 8077, runt = 36000021msec
slat (usec): न्यूनतम = 2, अधिकतम = 54737, avg = 8.69, stdev = 7.66
clat (usec): मिनट = 273, अधिकतम = 1637.4K, avg = 7912.32, stdev = 7961.38
lat (usec): न्यूनतम = 280, अधिकतम = 1637.5K, avg = 7921.36, stdev = 7961.69
bw (KB / s): मिनट = 974, अधिकतम = 70008, प्रति = 100.06%, avg = 32326.89, stdev = 10116.94
cpu: usr = 2.87%, sys = 10.90%, ctx = 139461266, majf = 0, minf = 22
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.1%, 16 = 0.1%, 32 = 0.1%,> = 64 = 100.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी r / w / d: कुल = 0/290788467/0, लघु = 0/0/0
lat (usec): 500 = 0.01%, 750 = 0.09%, 1000 = 0.27%
lat (msec): 2 = 2.71%, 4 = 19.19%, 10 = 61.65%, 20 = 9.32%, 50 = 6.23%
lat (msec): 100 = 0.52%, 250 = 0.02%, 500 = 0.01%, 750 = 0.01%, 1000 = 0.01%
lat (मिसेक): 2000 = 0.01%

रन स्थिति समूह 0 (सभी कार्य):
WRITE: io = 1109.3GB, aggrb = 32309KB / s, minb = 33085KB / s, maxb = 33085KB / s, टकसाल = 36000021msec, maxt = 36000021msec

डिस्क आँकड़े (पढ़ें / लिखें):
sdd: ios = 1743/290784750, मर्ज = 0/3511, टिक = 8629/2295779056, in_queue = 2295739130, उपयोग = 100.00%

चूंकि फियो आपको "बॉक्स से बाहर" समय पर संकेतक की निर्भरता को देखने की अनुमति नहीं देता है - इस बात का मूल्यांकन करने का कोई तरीका नहीं था कि कितना समय प्रदर्शन गिरना शुरू हो गया।

हिताची डेस्कस्टार HDS723020BLA642 उपभोक्ता-स्तरीय एसएटीए ड्राइव 2 टीबी 7200 आरपीएम, 64 एमबी

पढ़े: iodepth = 128, bw = 558713 B / s, iops = 136, avg = 9375 ग्रामec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 128
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (एफ = 1): [आर] [0.0% किया] [73K / 0K / s] [18/0 iops] [eta 42d: 18h: 13m: 10s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 26563
पढ़ें: io = 16900KB, bw = 558713 B / s, iops = 136, runt = 30974kec
slat (usec): मिनट = 3, अधिकतम = 124, avg = 9.05, stdev = 4.35
clat (msec): न्यूनतम = 17, अधिकतम = 3368, औसत = 937.95, stdev = 589.91
lat (msec): न्यूनतम = 18, अधिकतम = 3368, औसत = 937.96, stdev = 589.91
bw (KB / s): मिनट = 0, अधिकतम = 625, प्रति = 31.90%, औसत = 173.88, stdev = 255.59
cpu: usr = 0.13%, sys = 0.28%, ctx = 4225, majf = 0, minf = 152
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 0.4%, 32 = 0.8%,> = 64 = 98.5%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.1%
जारी r / w / d: कुल = 4225/0/0, छोटा = 0/0/0

lat (msec): 20 = 0.02%, 50 = 0.26%, 100 = 1.63%, 250 = 8.99%, 500 = 18.11%
lat (msec): 750 = 16.00%, 1000 = 13.78%, 2000 = 36.31%,> = 2000 = 4.00%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 16900KB, aggrb = 545KB / s, minb = 558KB / s, maxb = 558KB / s, टकसाल = 30974msec, अधिकतम = 309Kmsec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 4213/0, मर्ज = 0/0, टिक = 3883587/0, in_queue = 3900496, उपयोग = 99.60%

पढ़ें: iodepth = 64, bw = 518986 B / s, iops = 126, avg = 504.75 मिसे

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 64
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [540K / 0K / s] [132/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 26631
पढ़ें: io = 15600KB, bw = 518986 B / s, iops = 126, runt = 30780msec
slat (usec): न्यूनतम = 4, अधिकतम = 45, औसत = 10.96, stdev = 2.37
clat (msec): न्यूनतम = 8, अधिकतम = 2411, औसत = 504.75, स्टदेव = 311.77
lat (मिसेक): न्यूनतम = 8, अधिकतम = 2411, एवीजी = 504.76, स्टदेव = 311.77
bw (KB / s): मिनट = 0, अधिकतम = 565, प्रति = 49.08%, avg = 248.34, stdev = 256.27
cpu: usr = 0.19%, sys = 0.28%, ctx = 3900, majf = 0, minf/ 87
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 0.4%, 32 = 0.8%,> = 64 = 98.4%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.1%,> = 64 = 0.0%
जारी r / w / d: कुल = 3900/0/0, छोटा = 0/0/0

lat (msec): 10 = 0.03%, 50 = 0.36%, 100 = 3.44%, 250 = 18.69%, 500 = 34.36%
lat (msec): 750 = 22.77%, 1000 = 12.59%, 2000 = 7.74%,> = 2000 / 0.07%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 15600KB, aggrb = 506KB / s, minb = 518KB / s, maxb = 518KB / s, टकसाल = 30780msec, अधिकतम = 307Kmsec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 3892/0, मर्ज = 0/0, टिक = 1928873/0, in_queue = 1936814, उपयोग = 99.61%

पढ़ें: iodepth = 32, bw = 499089 B / s, iops = 121, avg = 262.47 gec

root @ होस्ट # fio ./read.ini
readtest: (g = 0): rw = randread, bs = 4K-4K / 4K-4K, ioengine = libaio, iodepth = 32
फियो 1.57
1 प्रक्रिया शुरू करना
नौकरियां: 1 (f = 1): [r] [100.0% किया गया] [511K / 0K / s] [124/0 iops] [eta 00m: 00s]
readtest: (groupid = 0, jobs = 1): इरेट = 0: pid = 26812
पढ़े: io = 14748KB, bw = 499089 B / s, iops = 121, runt = 3099kec
slat (usec): न्यूनतम = 5, अधिकतम = 36, avg = 14.30, stdev = 2.71
clat (msec): न्यूनतम = 13, अधिकतम = 2281, avg = 262.47, stdev = 229.50
lat (msec): मिनट = 13, अधिकतम = 2281, avg = 262.49, stdev = 229.50
bw (KB / s): मिनट = 448, अधिकतम = 542, प्रति = 100.14%, avg = 487.68, stdev = 20.30
cpu: usr = 0.16%, sys = 0.31%, ctx = 3687, majf = 0, minf = 55
IO की गहराई: 1 = 0.1%, 2 = 0.1%, 4 = 0.1%, 8 = 0.2%, 16 = 0.4%, 32 = 99.2%,> = 64 = 0.0%
सबमिट करें: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.0%, 64 = 0.0%,> = 64 = 0.0%
पूरा: 0 = 0.0%, 4 = 100.0%, 8 = 0.0%, 16 = 0.0%, 32 = 0.1%, 64 = 0.0%,> = 64 = 0.0%
जारी r / w / d: कुल = 3687/0/0, छोटा = 0/0/0

lat (msec): 20 = 0.57%, 50 = 12.96%, 100 = 14.94%, 250 = 29.51%, 500 = 28.53%
lat (msec): 750 = 9.79%, 1000 = 2.52%, 2000 = 1.11%,> = 2000 = 0.05%

रन स्थिति समूह 0 (सभी कार्य):
READ: io = 14748KB, aggrb = 487KB / s, minb = 499KB / s, maxb = 499KB / s, टकसाल = 30259msec, maxt = 3025Kmsec

डिस्क आँकड़े (पढ़ें / लिखें):
sdb: ios = 3673/0, मर्ज = 0/0, टिक्स = 956588/0, in_queue = 962866, उपयोग = 99.62%

पढ़ें: iodepth = 16, bw = 446150 B / s, iops = 108, avg = 146.79 मिसे

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [421K/0K /s] [102 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=26830
read: io=13144KB, bw=446150 B/s, iops=108, runt= 30168msec
slat (usec): min=5, max=93, avg=17.37, stdev= 3.35
clat (msec): min=8, max=920, avg=146.79, stdev=122.95
lat (msec): min=8, max=921, avg=146.81, stdev=122.95
bw (KB/s): min= 402, max= 496, per=100.24%, avg=436.03, stdev=16.06
cpu: usr=0.14%, sys=0.28%, ctx=3286, majf=0, minf=39
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=99.5%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=3286/0/0, short=0/0/0

lat (msec): 10=0.15%, 20=6.18%, 50=18.72%, 100=19.84%, 250=37.61%
lat (msec): 500=15.86%, 750=1.43%, 1000=0.21%

Run status group 0 (all jobs):
READ: io=13144KB, aggrb=435KB/s, minb=446KB/s, maxb=446KB/s, mint=30168msec, maxt=30168msec

Disk stats (read/write):
sdb: ios=3283/0, merge=0/0, ticks=479629/0, in_queue=481207, util=99.64%

पढ़ें: iodepth = 8, bw = 379415 B / s, iops = 92, avg = 86.29 मिसे

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [380K/0K /s] [92 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=26848
read: io=11152KB, bw=379415 B/s, iops=92, runt= 30098msec
slat (usec): min=5, max=154, avg=17.66, stdev= 4.06
clat (msec): min=9, max=502, avg=86.29, stdev=67.28
lat (msec): min=9, max=502, avg=86.31, stdev=67.28
bw (KB/s): min= 340, max= 406, per=100.17%, avg=370.64, stdev=15.20
cpu: usr=0.10%, sys=0.25%, ctx=2788, majf=0, minf=31
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=99.7%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=2788/0/0, short=0/0/0

lat (msec): 10=0.04%, 20=6.74%, 50=32.89%, 100=27.19%, 250=30.42%
lat (msec): 500=2.69%, 750=0.04%

Run status group 0 (all jobs):
READ: io=11152KB, aggrb=370KB/s, minb=379KB/s, maxb=379KB/s, mint=30098msec, maxt=30098msec

Disk stats (read/write):
sdb: ios=2770/0, merge=0/0, ticks=238618/0, in_queue=239079, util=99.65%

पढ़ें: iodepth = 4, bw = 301030 B / s, iops = 73, avg = 54.37 मिसे

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [299K/0K /s] [73 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=26863
read: io=8836.0KB, bw=301030 B/s, iops=73, runt= 30057msec
slat (usec): min=6, max=41, avg=17.78, stdev= 3.12
clat (msec): min=7, max=355, avg=54.37, stdev=38.77
lat (msec): min=7, max=355, avg=54.39, stdev=38.77
bw (KB/s): min= 193, max= 331, per=100.53%, avg=294.55, stdev=20.61
cpu: usr=0.09%, sys=0.20%, ctx=2209, majf=0, minf=27
IO depths: 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=2209/0/0, short=0/0/0

lat (msec): 10=0.14%, 20=5.57%, 50=55.82%, 100=27.89%, 250=10.10%
lat (msec): 500=0.50%

Run status group 0 (all jobs):
READ: io=8836KB, aggrb=293KB/s, minb=301KB/s, maxb=301KB/s, mint=30057msec, maxt=30057msec

Disk stats (read/write):
sdb: ios=2196/0, merge=0/0, ticks=119319/0, in_queue=119501, util=99.63%

पढ़ें: iodepth = 2, bw = 278016 B / s, iops = 67, avg = 29.43 मिसे

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [290K/0K /s] [71 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=26875
read: io=8148.0KB, bw=278016 B/s, iops=67, runt= 30011msec
slat (usec): min=7, max=41, avg=18.08, stdev= 2.98
clat (msec): min=4, max=249, avg=29.43, stdev=24.66
lat (msec): min=4, max=249, avg=29.45, stdev=24.66
bw (KB/s): min= 246, max= 309, per=100.03%, avg=271.07, stdev=12.89
cpu: usr=0.09%, sys=0.19%, ctx=2037, majf=0, minf=26
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=2037/0/0, short=0/0/0

lat (msec): 10=9.33%, 20=38.49%, 50=37.60%, 100=12.37%, 250=2.21%

Run status group 0 (all jobs):
READ: io=8148KB, aggrb=271KB/s, minb=278KB/s, maxb=278KB/s, mint=30011msec, maxt=30011msec

Disk stats (read/write):
sdb: ios=2027/0, merge=0/0, ticks=59697/0, in_queue=59716, util=99.60%

पढ़ें: iodepth = 1, bw = 258021 B / s, iops = 62, avg = 15.85 मिसे

root@host# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [266K/0K /s] [65 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=26893
read: io=7564.0KB, bw=258021 B/s, iops=62, runt= 30019msec
slat (usec): min=9, max=39, avg=17.66, stdev= 3.15
clat (msec): min=2, max=250, avg=15.85, stdev= 6.91
lat (msec): min=2, max=250, avg=15.87, stdev= 6.91
bw (KB/s): min= 167, max= 291, per=100.32%, avg=251.80, stdev=18.56
cpu: usr=0.09%, sys=0.16%, ctx=1891, majf=0, minf=24
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=1891/0/0, short=0/0/0

lat (msec): 4=0.16%, 10=9.62%, 20=73.61%, 50=16.55%, 500=0.05%

Run status group 0 (all jobs):
READ: io=7564KB, aggrb=251KB/s, minb=258KB/s, maxb=258KB/s, mint=30019msec, maxt=30019msec

Disk stats (read/write):
sdb: ios=1883/0, merge=0/0, ticks=29818/0, in_queue=29829, util=99.45%

अनुक्रमिक रीड माप:

 root @ host # dd if = / dev / sdb of = / dev / null iflag = direct bs = 2M
में 953864 + 1 रिकॉर्ड
953864 + 1 रिकॉर्ड आउट
2000398934016 बाइट्स (2.0 टीबी) की नकल, 15221 एस, 131 एमबी / एस

पढ़ना विश्लेषण:

रैखिक पढ़ने की गति बहुत अधिक है - 131 एमबी / एस। वांछित avg.latency स्तर को प्राप्त करने में विफल। निकटतम परिणाम: iodepth = 1, bw = 258021 B / s, iops = 62, avg = 15.80 msec ।

रिकॉर्ड: iodepth = 1024, bw = 643734 B / s, iops = 157, avg = 60714 xec

root@home# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/527K /s] [0 /128 iops] [eta 45d:14h:53m:02s]
writetest: (groupid=0, jobs=1): err= 0: pid=26924
write: io=19456KB, bw=643734 B/s, iops=157, runt= 30949msec
slat (usec): min=2, max=282743, avg=6210.03, stdev=35626.77
clat (msec): min=727, max=11001, avg=6071.14, stdev=1458.55
lat (msec): min=962, max=11001, avg=6077.35, stdev=1458.99
bw (KB/s): min= 0, max= 728, per=3.71%, avg=23.31, stdev=118.34
cpu: usr=0.06%, sys=0.07%, ctx=276, majf=0, minf=22
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.3%, 32=0.7%, >=64=98.7%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued r/w/d: total=0/4864/0, short=0/0/0

lat (msec): 750=0.02%, 1000=0.66%, 2000=3.29%, >=2000=96.03%

Run status group 0 (all jobs):
WRITE: io=19456KB, aggrb=628KB/s, minb=643KB/s, maxb=643KB/s, mint=30949msec, maxt=30949msec

Disk stats (read/write):
sdb: ios=83/4855, merge=0/0, ticks=131/4370631, in_queue=4378949, util=100.00%

रिकॉर्ड: iodepth = 32, bw = 589269 B / s, iops = 143, avg = 222319.82 usec

root@host# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/581K /s] [0 /141 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=26956
write: io=17380KB, bw=589269 B/s, iops=143, runt= 30202msec
slat (usec): min=4, max=64, avg=15.65, stdev= 2.85
clat (usec): min=497, max=398588, avg=222319.82, stdev=37626.92
lat (usec): min=519, max=398600, avg=222335.96, stdev=37627.65
bw (KB/s): min= 486, max= 1093, per=99.97%, avg=574.85, stdev=77.20
cpu: usr=0.21%, sys=0.36%, ctx=4345, majf=0, minf=22
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.4%, 32=99.3%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4345/0, short=0/0/0
lat (usec): 500=0.02%
lat (msec): 2=0.14%, 4=0.30%, 10=1.17%, 50=0.09%, 100=0.16%
lat (msec): 250=83.87%, 500=14.25%

Run status group 0 (all jobs):
WRITE: io=17380KB, aggrb=575KB/s, minb=589KB/s, maxb=589KB/s, mint=30202msec, maxt=30202msec

Disk stats (read/write):
sdb: ios=83/4336, merge=0/0, ticks=64/961069, in_queue=962665, util=99.84%

रिकॉर्ड: iodepth = 16, bw = 590036 B / s, iops = 144, avg = 110994.33 msec

root@host# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/573K /s] [0 /140 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=26980
write: io=17364KB, bw=590036 B/s, iops=144, runt= 30135msec
slat (usec): min=4, max=53, avg=19.06, stdev= 3.23
clat (usec): min=355, max=222467, avg=110994.39, stdev=20437.11
lat (usec): min=381, max=222490, avg=111013.98, stdev=20437.75
bw (KB/s): min= 491, max= 1109, per=100.16%, avg=576.90, stdev=78.30
cpu: usr=0.14%, sys=0.43%, ctx=4342, majf=0, minf=22
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=99.7%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4341/0, short=0/0/0
lat (usec): 500=0.02%, 1000=0.02%
lat (msec): 2=0.16%, 4=1.41%, 10=0.02%, 50=0.12%, 100=19.79%
lat (msec): 250=78.46%

Run status group 0 (all jobs):
WRITE: io=17364KB, aggrb=576KB/s, minb=590KB/s, maxb=590KB/s, mint=30135msec, maxt=30135msec

Disk stats (read/write):
sdb: ios=83/4341, merge=0/0, ticks=67/480952, in_queue=481017, util=99.84%

रिकॉर्ड: iodepth = 8, bw = 584675 B / s, iops = 142, avg = 5599.99.99ecec

root@host# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/626K /s] [0 /152 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=27008
write: io=17160KB, bw=584675 B/s, iops=142, runt= 30054msec
slat (usec): min=5, max=44, avg=19.01, stdev= 3.15
clat (usec): min=278, max=95168, avg=55996.99, stdev=11865.20
lat (usec): min=307, max=95187, avg=56016.54, stdev=11865.82
bw (KB/s): min= 458, max= 1099, per=100.08%, avg=570.47, stdev=79.55
cpu: usr=0.17%, sys=0.40%, ctx=4291, majf=0, minf=22
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=99.8%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4290/0, short=0/0/0
lat (usec): 500=0.02%, 750=0.02%, 1000=0.02%
lat (msec): 2=1.56%, 4=0.02%, 20=0.02%, 50=25.78%, 100=72.54%

Run status group 0 (all jobs):
WRITE: io=17160KB, aggrb=570KB/s, minb=584KB/s, maxb=584KB/s, mint=30054msec, maxt=30054msec

Disk stats (read/write):
sdb: ios=83/4264, merge=0/0, ticks=59/238810, in_queue=239070, util=99.83%

रिकॉर्ड: iodepth = 4, bw = 583096 B / s, iops = 142, avg = 280633 xec

root@home# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/573K /s] [0 /140 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=27030
write: io=17100KB, bw=583096 B/s, iops=142, runt= 30030msec
slat (usec): min=5, max=37, avg=18.82, stdev= 3.02
clat (usec): min=274, max=53388, avg=28063.83, stdev=6724.53
lat (usec): min=296, max=53410, avg=28083.17, stdev=6725.00
bw (KB/s): min= 492, max= 1109, per=100.14%, avg=569.81, stdev=78.93
cpu: usr=0.17%, sys=0.39%, ctx=4275, majf=0, minf=22
IO depths: 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4275/0, short=0/0/0
lat (usec): 500=0.02%, 750=1.54%, 1000=0.07%
lat (msec): 4=0.02%, 20=5.38%, 50=92.82%, 100=0.14%

Run status group 0 (all jobs):
WRITE: io=17100KB, aggrb=569KB/s, minb=583KB/s, maxb=583KB/s, mint=30030msec, maxt=30030msec

Disk stats (read/write):
sdb: ios=83/4256, merge=0/0, ticks=60/119372, in_queue=119517, util=99.82%

रिकॉर्ड: iodepth = 2, bw = 585825 B / s, iops = 143, avg = 13954.43 usec

root@host# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/626K /s] [0 /152 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=27064
write: io=17172KB, bw=585825 B/s, iops=143, runt= 30016msec
slat (usec): min=6, max=40, avg=18.67, stdev= 3.01
clat (usec): min=158, max=27959, avg=13954.43, stdev=3872.39
lat (usec): min=186, max=27980, avg=13973.63, stdev=3872.96
bw (KB/s): min= 476, max= 1087, per=99.98%, avg=571.86, stdev=78.33
cpu: usr=0.21%, sys=0.36%, ctx=4293, majf=0, minf=22
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4293/0, short=0/0/0
lat (usec): 250=0.02%, 500=1.54%, 750=0.09%
lat (msec): 10=10.16%, 20=84.30%, 50=3.89%

Run status group 0 (all jobs):
WRITE: io=17172KB, aggrb=572KB/s, minb=585KB/s, maxb=585KB/s, mint=30016msec, maxt=30016msec

Disk stats (read/write):
sdb: ios=83/4273, merge=0/0, ticks=64/59670, in_queue=59743, util=99.80%

रिकॉर्ड: iodepth = 1, bw = 580929 B / s, iops = 141, avg = 7025.40 इंच

root@host# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
fio 1.57
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/569K /s] [0 /139 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=27088
write: io=17020KB, bw=580929 B/s, iops=141, runt= 30001msec
slat (usec): min=6, max=74, avg=18.97, stdev= 3.19
clat (usec): min=137, max=18822, avg=7025.40, stdev=2379.35
lat (usec): min=151, max=18841, avg=7044.92, stdev=2379.66
bw (KB/s): min= 459, max= 1117, per=100.04%, avg=567.25, stdev=81.49
cpu: usr=0.18%, sys=0.38%, ctx=4255, majf=0, minf=22
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued r/w/d: total=0/4255/0, short=0/0/0
lat (usec): 250=1.60%, 500=0.07%
lat (msec): 2=0.05%, 4=5.69%, 10=87.99%, 20=4.61%

Run status group 0 (all jobs):
WRITE: io=17020KB, aggrb=567KB/s, minb=580KB/s, maxb=580KB/s, mint=30001msec, maxt=30001msec

Disk stats (read/write):
sdb: ios=83/4235, merge=0/0, ticks=62/29802, in_queue=29863, util=99.56%

रिकॉर्ड विश्लेषण:

आश्चर्यजनक रूप से, रिकॉर्डिंग के साथ सब कुछ बेहतर निकला। मैं 7 एमएस विलंबता में 141 IOPS हासिल करने में कामयाब रहा। iodepth = 1, bw = 580929 B / s, iops = 141, avg = 7025.40 usec ।

SATA- ड्राइव एंटरप्राइज-लेवल वेस्टर्न डिजिटल RE3 WD2502ABYS-23B7A0 250 GB 7200 rpm 16 MB

पढ़ें: iodepth = 1024, bw = 598599 B / s, iops = 146, avg = 6409,374 टीईसी

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [0.0% done] [516K/0K /s] [129 /0 iops] [eta 06d:06h:39m:59s]
readtest: (groupid=0, jobs=1): err= 0: pid=3813
read: io=18048KB, bw=598599 B/s, iops=146, runt= 30874msec
slat (usec): min=2, max=287017, avg=6648.57, stdev=37692.92
clat (msec): min=863, max=9575, avg=6409.46, stdev=1605.46
lat (msec): min=1077, max=9575, avg=6416.11, stdev=1605.43
clat percentiles (msec):
| 1.00th=[ 1303], 5.00th=[ 2573], 10.00th=[ 4080], 20.00th=[ 6128],
| 30.00th=[ 6194], 40.00th=[ 6325], 50.00th=[ 6587], 60.00th=[ 6783],
| 70.00th=[ 7177], 80.00th=[ 7635], 90.00th=[ 8160], 95.00th=[ 8356],
| 99.00th=[ 8717], 99.50th=[ 8848], 99.90th=[ 9110], 99.95th=[ 9372],
| 99.99th=[ 9634]
bw (KB/s): min= 0, max= 644, per=95.81%, avg=559.53, stdev=117.13
lat (msec): 1000=0.02%, 2000=3.55%, >=2000=96.43%
cpu: usr=0.03%, sys=0.08%, ctx=265, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.4%, 32=0.7%, >=64=98.6%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued: total=r=4512/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=18048KB, aggrb=584KB/s, minb=584KB/s, maxb=584KB/s, mint=30874msec, maxt=30874msec

Disk stats (read/write):
sda: ios=4482/0, merge=0/0, ticks=4311286/0, in_queue=4353880, util=99.73%

पढ़ें: iodepth = 32, bw = 512118 B / s, iops = 125, avg = 255.83 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [472K/0K /s] [118 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3826
read: io=15136KB, bw=512118 B/s, iops=125, runt= 30265msec
slat (usec): min=4, max=129, avg=23.86, stdev= 4.10
clat (msec): min=8, max=1241, avg=255.83, stdev=212.30
lat (msec): min=8, max=1241, avg=255.86, stdev=212.30
clat percentiles (msec):
| 1.00th=[ 21], 5.00th=[ 34], 10.00th=[ 45], 20.00th=[ 71],
| 30.00th=[ 99], 40.00th=[ 133], 50.00th=[ 180], 60.00th=[ 247],
| 70.00th=[ 338], 80.00th=[ 449], 90.00th=[ 586], 95.00th=[ 685],
| 99.00th=[ 840], 99.50th=[ 889], 99.90th=[ 996], 99.95th=[ 1045],
| 99.99th=[ 1237]
bw (KB/s): min= 438, max= 538, per=100.00%, avg=500.36, stdev=23.40
lat (msec): 10=0.03%, 20=0.79%, 50=11.44%, 100=18.02%, 250=30.02%
lat (msec): 500=23.65%, 750=13.48%, 1000=2.51%, 2000=0.05%
cpu: usr=0.31%, sys=0.48%, ctx=3784, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.4%, 32=99.2%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=3784/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=15136KB, aggrb=500KB/s, minb=500KB/s, maxb=500KB/s, mint=30265msec, maxt=30265msec

Disk stats (read/write):
sda: ios=3771/0, merge=0/0, ticks=958434/0, in_queue=963377, util=99.72%

पढ़ें: iodepth = 16, bw = 474046 B / s, iops = 115, avg = 138.18 मिसे

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [460K/0K /s] [115 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3832
read: io=13964KB, bw=474046 B/s, iops=115, runt= 30164msec
slat (usec): min=4, max=48, avg= 9.72, stdev= 2.26
clat (msec): min=11, max=677, avg=138.18, stdev=104.64
lat (msec): min=11, max=677, avg=138.19, stdev=104.64
clat percentiles (msec):
| 1.00th=[ 21], 5.00th=[ 29], 10.00th=[ 37], 20.00th=[ 55],
| 30.00th=[ 72], 40.00th=[ 90], 50.00th=[ 108], 60.00th=[ 129],
| 70.00th=[ 159], 80.00th=[ 210], 90.00th=[ 289], 95.00th=[ 359],
| 99.00th=[ 474], 99.50th=[ 545], 99.90th=[ 652], 99.95th=[ 660],
| 99.99th=[ 676]
bw (KB/s): min= 422, max= 507, per=100.00%, avg=463.22, stdev=21.17
lat (msec): 20=0.92%, 50=16.47%, 100=28.87%, 250=39.01%, 500=14.01%
lat (msec): 750=0.72%
cpu: usr=0.16%, sys=0.20%, ctx=3491, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=99.6%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=3491/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=13964KB, aggrb=462KB/s, minb=462KB/s, maxb=462KB/s, mint=30164msec, maxt=30164msec

Disk stats (read/write):
sda: ios=3490/0, merge=0/0, ticks=481087/0, in_queue=481253, util=99.72%

पढ़ें: iodepth = 16, bw = 474046 B / s, iops = 115, avg = 138.18 मिसे

पढ़ें: iodepth = 8, bw = 443783 B / s, iops = 108, avg = 73.81 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [448K/0K /s] [112 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3836
read: io=13024KB, bw=443783 B/s, iops=108, runt= 30052msec
slat (usec): min=4, max=47, avg= 9.73, stdev= 1.99
clat (msec): min=7, max=211, avg=73.81, stdev=31.56
lat (msec): min=7, max=211, avg=73.82, stdev=31.56
clat percentiles (msec):
| 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 33], 20.00th=[ 43],
| 30.00th=[ 52], 40.00th=[ 63], 50.00th=[ 74], 60.00th=[ 83],
| 70.00th=[ 93], 80.00th=[ 104], 90.00th=[ 117], 95.00th=[ 126],
| 99.00th=[ 143], 99.50th=[ 149], 99.90th=[ 178], 99.95th=[ 180],
| 99.99th=[ 212]
bw (KB/s): min= 391, max= 463, per=100.00%, avg=433.20, stdev=16.73
lat (msec): 10=0.03%, 20=0.71%, 50=27.12%, 100=49.57%, 250=22.57%
cpu: usr=0.12%, sys=0.22%, ctx=3257, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=99.8%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=3256/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=13024KB, aggrb=433KB/s, minb=433KB/s, maxb=433KB/s, mint=30052msec, maxt=30052msec

Disk stats (read/write):
sda: ios=3240/0, merge=0/0, ticks=238833/0, in_queue=239203, util=99.70%

पढ़ें: iodepth = 4, bw = 361840 B / s, iops = 88, avg = 45.25 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [356K/0K /s] [89 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3840
read: io=10616KB, bw=361840 B/s, iops=88, runt= 30043msec
slat (usec): min=5, max=46, avg= 9.62, stdev= 1.88
clat (msec): min=12, max=102, avg=45.25, stdev=12.46
lat (msec): min=13, max=102, avg=45.26, stdev=12.46
clat percentiles (msec):
| 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 30], 20.00th=[ 35],
| 30.00th=[ 38], 40.00th=[ 42], 50.00th=[ 45], 60.00th=[ 48],
| 70.00th=[ 51], 80.00th=[ 56], 90.00th=[ 63], 95.00th=[ 68],
| 99.00th=[ 80], 99.50th=[ 84], 99.90th=[ 97], 99.95th=[ 99],
| 99.99th=[ 103]
bw (KB/s): min= 322, max= 395, per=100.00%, avg=353.08, stdev=17.19
lat (msec): 20=0.26%, 50=66.84%, 100=32.86%, 250=0.04%
cpu: usr=0.18%, sys=0.11%, ctx=2654, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=2654/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=10616KB, aggrb=353KB/s, minb=353KB/s, maxb=353KB/s, mint=30043msec, maxt=30043msec

Disk stats (read/write):
sda: ios=2642/0, merge=0/0, ticks=119520/0, in_queue=119583, util=99.72%

पढ़ें: iodepth = 2, bw = 351144 B / s, iops = 85, avg = 23.29 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [320K/0K /s] [80 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3844
read: io=10296KB, bw=351144 B/s, iops=85, runt= 30025msec
slat (usec): min=8, max=46, avg=20.46, stdev= 5.06
clat (msec): min=7, max=42, avg=23.29, stdev= 5.06
lat (msec): min=7, max=42, avg=23.32, stdev= 5.06
clat percentiles (usec):
| 1.00th=[11968], 5.00th=[15168], 10.00th=[16768], 20.00th=[19072],
| 30.00th=[20608], 40.00th=[21888], 50.00th=[23168], 60.00th=[24448],
| 70.00th=[25984], 80.00th=[27520], 90.00th=[30080], 95.00th=[31872],
| 99.00th=[35584], 99.50th=[37120], 99.90th=[39168], 99.95th=[39168],
| 99.99th=[42240]
bw (KB/s): min= 314, max= 415, per=100.00%, avg=342.71, stdev=18.16
lat (msec): 10=0.16%, 20=25.41%, 50=74.44%
cpu: usr=0.14%, sys=0.35%, ctx=2574, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=2574/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=10296KB, aggrb=342KB/s, minb=342KB/s, maxb=342KB/s, mint=30025msec, maxt=30025msec

Disk stats (read/write):
sda: ios=2563/0, merge=0/0, ticks=59727/0, in_queue=59753, util=99.71%

पढ़ें: iodepth = 1, bw = 349284 B / s, iops = 85, avg = 11999,ec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [328K/0K /s] [82 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3852
read: io=10236KB, bw=349284 B/s, iops=85, runt= 30009msec
slat (usec): min=8, max=50, avg=31.99, stdev= 3.37
clat (msec): min=2, max=22, avg=11.69, stdev= 3.49
lat (msec): min=2, max=22, avg=11.72, stdev= 3.49
clat percentiles (usec):
| 1.00th=[ 3984], 5.00th=[ 5920], 10.00th=[ 7200], 20.00th=[ 8512],
| 30.00th=[ 9792], 40.00th=[10816], 50.00th=[11584], 60.00th=[12608],
| 70.00th=[13504], 80.00th=[14784], 90.00th=[16320], 95.00th=[17536],
| 99.00th=[19584], 99.50th=[20096], 99.90th=[21376], 99.95th=[21376],
| 99.99th=[22400]
bw (KB/s): min= 310, max= 390, per=100.00%, avg=341.07, stdev=16.19
lat (msec): 4=1.02%, 10=31.11%, 20=67.37%, 50=0.51%
cpu: usr=0.06%, sys=0.41%, ctx=2559, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=2559/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=10236KB, aggrb=341KB/s, minb=341KB/s, maxb=341KB/s, mint=30009msec, maxt=30009msec

Disk stats (read/write):
sda: ios=2552/0, merge=0/0, ticks=29780/0, in_queue=29786, util=99.29%

अनुक्रमिक रीड माप:

 root @ host: ~ # dd if = / dev / sda of = / dev / null iflag = direct bs = 2M
में 119237 + 1 रिकॉर्ड
119237 + 1 रिकॉर्ड आउट
250059350016 बाइट्स (250 जीबी) कॉपी किए गए, 2603.86 एस, 96.0 एमबी / एस

पढ़ना विश्लेषण:

रैखिक रीड स्पीड पिछले उपभोक्ता-स्तर की ड्राइव से कम है। दिए गए avg.latency स्तर <10 ms के लिए परिणाम प्राप्त करने में विफल। निकटतम पठन परिणाम: iodepth = 1, bw = 349284 B / s, iops = 85, avg = 11.69 मिसे ।

रिकॉर्ड: iodepth = 1024, bw = 792709 B / s, iops = 193, avg = 5036.55 msec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/644K /s] [0 /161 iops] [eta 04d:10h:34m:55s]
writetest: (groupid=0, jobs=1): err= 0: pid=3862
write: io=23820KB, bw=792709 B/s, iops=193, runt= 30770msec
slat (usec): min=3, max=226929, avg=5052.81, stdev=28899.87
clat (msec): min=665, max=7288, avg=5036.55, stdev=1103.42
lat (msec): min=877, max=7288, avg=5041.60, stdev=1103.79
clat percentiles (msec):
| 1.00th=[ 1057], 5.00th=[ 2376], 10.00th=[ 3982], 20.00th=[ 4686],
| 30.00th=[ 4817], 40.00th=[ 4948], 50.00th=[ 5145], 60.00th=[ 5276],
| 70.00th=[ 5538], 80.00th=[ 5866], 90.00th=[ 6194], 95.00th=[ 6390],
| 99.00th=[ 6718], 99.50th=[ 6783], 99.90th=[ 6980], 99.95th=[ 7111],
| 99.99th=[ 7308]
bw (KB/s): min= 1, max= 850, per=93.87%, avg=726.55, stdev=140.26
lat (msec): 750=0.02%, 1000=0.54%, 2000=3.22%, >=2000=96.22%
cpu: usr=0.03%, sys=0.12%, ctx=311, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.3%, 32=0.5%, >=64=98.9%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued: total=r=0/w=0/d=5955, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=23820KB, aggrb=774KB/s, minb=774KB/s, maxb=774KB/s, mint=30770msec, maxt=30770msec

Disk stats (read/write):
sda: ios=84/5933, merge=0/0, ticks=230/4329180, in_queue=4359370, util=100.00%

रिकॉर्ड: iodepth = 32, bw = 782310 B / s, iops = 190, avg = 167484.47 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/736K /s] [0 /184 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3885
write: io=23056KB, bw=782310 B/s, iops=190, runt= 30179msec
slat (usec): min=3, max=132, avg=19.51, stdev= 8.95
clat (usec): min=356, max=866732, avg=167484.47, stdev=145167.58
lat (usec): min=361, max=866744, avg=167504.66, stdev=145168.06
clat percentiles (msec):
| 1.00th=[ 4], 5.00th=[ 18], 10.00th=[ 28], 20.00th=[ 48],
| 30.00th=[ 71], 40.00th=[ 93], 50.00th=[ 117], 60.00th=[ 151],
| 70.00th=[ 210], 80.00th=[ 277], 90.00th=[ 396], 95.00th=[ 474],
| 99.00th=[ 603], 99.50th=[ 635], 99.90th=[ 725], 99.95th=[ 791],
| 99.99th=[ 865]
bw (KB/s): min= 646, max= 1865, per=100.00%, avg=764.76, stdev=150.29
lat (usec): 500=0.05%, 750=0.03%, 1000=0.07%
lat (msec): 2=0.33%, 4=0.57%, 10=1.56%, 20=3.54%, 50=14.50%
lat (msec): 100=23.30%, 250=32.43%, 500=19.69%, 750=3.85%, 1000=0.07%
cpu: usr=0.24%, sys=0.69%, ctx=5767, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.3%, 32=99.5%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5764, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=23056KB, aggrb=763KB/s, minb=763KB/s, maxb=763KB/s, mint=30179msec, maxt=30179msec

Disk stats (read/write):
sda: ios=84/5760, merge=0/0, ticks=223/960820, in_queue=962817, util=100.00%

रिकॉर्ड: iodepth = 16, bw = 769140 B / s, iops = 187, avg = 85163.46 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/712K /s] [0 /178 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3907
write: io=22592KB, bw=769140 B/s, iops=187, runt= 30078msec
slat (usec): min=3, max=43, avg=19.45, stdev= 8.87
clat (usec): min=355, max=515043, avg=85163.46, stdev=55854.61
lat (usec): min=360, max=515074, avg=85183.85, stdev=55855.21
clat percentiles (usec):
| 1.00th=[ 1720], 5.00th=[15936], 10.00th=[23424], 20.00th=[37120],
| 30.00th=[50432], 40.00th=[64256], 50.00th=[78336], 60.00th=[91648],
| 70.00th=[105984], 80.00th=[122368], 90.00th=[150528], 95.00th=[183296],
| 99.00th=[284672], 99.50th=[313344], 99.90th=[391168], 99.95th=[440320],
| 99.99th=[514048]
bw (KB/s): min= 576, max= 1860, per=100.00%, avg=751.53, stdev=151.70
lat (usec): 500=0.05%, 750=0.19%, 1000=0.19%
lat (msec): 2=0.80%, 4=1.10%, 10=0.30%, 20=4.98%, 50=22.17%
lat (msec): 100=36.03%, 250=32.74%, 500=1.43%, 750=0.02%
cpu: usr=0.26%, sys=0.65%, ctx=5649, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=99.7%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5648, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=22592KB, aggrb=751KB/s, minb=751KB/s, maxb=751KB/s, mint=30078msec, maxt=30078msec

Disk stats (read/write):
sda: ios=84/5613, merge=0/0, ticks=210/477223, in_queue=478567, util=100.00%

रिकॉर्ड: iodepth = 8, bw = 780963 B / s, iops = 190, avg = 41927.87 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/708K /s] [0 /177 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3929
write: io=22908KB, bw=780963 B/s, iops=190, runt= 30037msec
slat (usec): min=3, max=133, avg=16.44, stdev= 7.30
clat (usec): min=356, max=166901, avg=41927.87, stdev=19827.30
lat (usec): min=360, max=166930, avg=41946.17, stdev=19827.88
clat percentiles (usec):
| 1.00th=[ 932], 5.00th=[13888], 10.00th=[17280], 20.00th=[23168],
| 30.00th=[29568], 40.00th=[35072], 50.00th=[40704], 60.00th=[46848],
| 70.00th=[52992], 80.00th=[59648], 90.00th=[68096], 95.00th=[75264],
| 99.00th=[88576], 99.50th=[95744], 99.90th=[113152], 99.95th=[116224],
| 99.99th=[166912]
bw (KB/s): min= 632, max= 1936, per=100.00%, avg=763.63, stdev=161.74
lat (usec): 500=0.30%, 750=0.40%, 1000=0.44%
lat (msec): 2=1.10%, 4=0.23%, 10=0.16%, 20=11.96%, 50=50.29%
lat (msec): 100=34.78%, 250=0.35%
cpu: usr=0.31%, sys=0.61%, ctx=5728, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=99.9%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5727, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=22908KB, aggrb=762KB/s, minb=762KB/s, maxb=762KB/s, mint=30037msec, maxt=30037msec

Disk stats (read/write):
sda: ios=84/5703, merge=0/0, ticks=96/238850, in_queue=239140, util=100.00%

रिकॉर्ड: iodepth = 4, bw = 773543 B / s, iops = 188, avg = 21153.8.8 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/768K /s] [0 /192 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3951
write: io=22676KB, bw=773543 B/s, iops=188, runt= 30018msec
slat (usec): min=3, max=44, avg=15.74, stdev= 6.49
clat (usec): min=306, max=66557, avg=21153.83, stdev=7431.97
lat (usec): min=335, max=66586, avg=21171.31, stdev=7432.45
clat percentiles (usec):
| 1.00th=[ 540], 5.00th=[12352], 10.00th=[13632], 20.00th=[15424],
| 30.00th=[17280], 40.00th=[18816], 50.00th=[20352], 60.00th=[22144],
| 70.00th=[23936], 80.00th=[26752], 90.00th=[30592], 95.00th=[34048],
| 99.00th=[41728], 99.50th=[45824], 99.90th=[52992], 99.95th=[55552],
| 99.99th=[66048]
bw (KB/s): min= 630, max= 1904, per=100.00%, avg=756.66, stdev=156.44
lat (usec): 500=0.88%, 750=1.18%, 1000=0.37%
lat (msec): 2=0.11%, 4=0.02%, 10=0.19%, 20=44.47%, 50=52.55%
lat (msec): 100=0.23%
cpu: usr=0.33%, sys=0.56%, ctx=5671, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5669, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=22676KB, aggrb=755KB/s, minb=755KB/s, maxb=755KB/s, mint=30018msec, maxt=30018msec

Disk stats (read/write):
sda: ios=84/5652, merge=0/0, ticks=100/119303, in_queue=119453, util=100.00%

रिकॉर्ड: iodepth = 2, bw = 769,245 B / s, iops = 187, avg = 10622.52 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/724K /s] [0 /181 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3974
write: io=22544KB, bw=769245 B/s, iops=187, runt= 30010msec
slat (usec): min=4, max=46, avg=18.56, stdev= 7.38
clat (usec): min=157, max=28381, avg=10622.52, stdev=3481.52
lat (usec): min=190, max=28406, avg=10642.92, stdev=3482.38
clat percentiles (usec):
| 1.00th=[ 290], 5.00th=[ 7200], 10.00th=[ 7904], 20.00th=[ 8640],
| 30.00th=[ 9024], 40.00th=[ 9536], 50.00th=[ 9920], 60.00th=[10432],
| 70.00th=[11072], 80.00th=[12096], 90.00th=[16320], 95.00th=[18048],
| 99.00th=[20096], 99.50th=[20608], 99.90th=[25472], 99.95th=[26496],
| 99.99th=[28288]
bw (KB/s): min= 664, max= 1920, per=100.00%, avg=751.66, stdev=158.62
lat (usec): 250=0.71%, 500=1.81%, 750=0.05%
lat (msec): 2=0.04%, 10=48.49%, 20=47.91%, 50=0.99%
cpu: usr=0.25%, sys=0.66%, ctx=5639, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5636, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=22544KB, aggrb=751KB/s, minb=751KB/s, maxb=751KB/s, mint=30010msec, maxt=30010msec

Disk stats (read/write):
sda: ios=84/5618, merge=0/0, ticks=97/59580, in_queue=59680, util=100.00%

रिकॉर्ड: iodepth = 1, bw = 768989 B / s, iops = 187, avg = 5294.30 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/768K /s] [0 /192 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3997
write: io=22532KB, bw=768989 B/s, iops=187, runt= 30004msec
slat (usec): min=6, max=182, avg=26.05, stdev=11.19
clat (usec): min=113, max=17523, avg=5294.30, stdev=2342.17
lat (usec): min=120, max=17539, avg=5321.15, stdev=2342.65
clat percentiles (usec):
| 1.00th=[ 141], 5.00th=[ 2864], 10.00th=[ 3472], 20.00th=[ 3856],
| 30.00th=[ 4320], 40.00th=[ 4576], 50.00th=[ 4896], 60.00th=[ 5280],
| 70.00th=[ 5600], 80.00th=[ 6112], 90.00th=[ 7264], 95.00th=[11712],
| 99.00th=[13760], 99.50th=[14144], 99.90th=[16512], 99.95th=[16768],
| 99.99th=[17536]
bw (KB/s): min= 624, max= 1892, per=100.00%, avg=751.07, stdev=156.08
lat (usec): 250=2.52%, 500=0.04%, 750=0.04%, 1000=0.04%
lat (msec): 2=0.25%, 4=20.34%, 10=71.10%, 20=5.68%
cpu: usr=0.12%, sys=0.66%, ctx=5636, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=5633, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=22532KB, aggrb=750KB/s, minb=750KB/s, maxb=750KB/s, mint=30004msec, maxt=30004msec

Disk stats (read/write):
sda: ios=84/5613, merge=0/0, ticks=100/29717, in_queue=29817, util=99.39%

अनुक्रमिक लिखें माप:

 रूट @ होस्ट: ~ # dd if = / dev / zero of = / dev / sda oflag = direct bs = 2M   
dd: लेखन `/ देव / sda ': डिवाइस पर कोई स्थान नहीं बचा है
में 119238 + 0 रिकॉर्ड
119237 + 0 रिकॉर्ड बनाया
250059350016 बाइट्स (250 जीबी) कॉपी किए गए, 2615.61 एस, 95.6 एमबी / एस

रिकॉर्ड विश्लेषण:

यह ध्यान दिया जाना चाहिए कि IOPS पूरे परीक्षण में कतार के आकार से स्थिर है। ड्राइव की विशेषता: iodepth = 1, bw = 768989 B / s, iops = 187, avg = 5294.30 usec ।

SATA ड्राइव उपभोक्ता-स्तर सीगेट बाराकुडा 7200.11 ST3320613AS 320 जीबी 7200 आरपीएम 16 एमबी

पढ़ें: iodepth = 1024, bw = 452666 B / s, iops = 110, avg = 8229.64 मिसे

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [0.0% done] [260K/0K /s] [65 /0 iops] [eta 11d:12h:33m:43s]
readtest: (groupid=0, jobs=1): err= 0: pid=3795
read: io=13824KB, bw=452666 B/s, iops=110, runt= 31272msec
slat (usec): min=3, max=411507, avg=8701.29, stdev=49676.88
clat (msec): min=1190, max=12289, avg=8229.64, stdev=2180.39
lat (msec): min=1445, max=12289, avg=8238.34, stdev=2180.71
clat percentiles (msec):
| 1.00th=[ 1860], 5.00th=[ 3064], 10.00th=[ 4490], 20.00th=[ 7767],
| 30.00th=[ 8029], 40.00th=[ 8225], 50.00th=[ 8586], 60.00th=[ 8848],
| 70.00th=[ 9372], 80.00th=[ 9896], 90.00th=[10552], 95.00th=[10814],
| 99.00th=[11207], 99.50th=[11600], 99.90th=[11994], 99.95th=[11994],
| 99.99th=[12256]
bw (KB/s): min= 0, max= 506, per=96.51%, avg=426.56, stdev=97.53
lat (msec): 2000=1.88%, >=2000=98.12%
cpu: usr=0.02%, sys=0.07%, ctx=232, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.5%, 32=0.9%, >=64=98.2%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued: total=r=3456/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=13824KB, aggrb=442KB/s, minb=442KB/s, maxb=442KB/s, mint=31272msec, maxt=31272msec

Disk stats (read/write):
sda: ios=3444/0, merge=0/0, ticks=4365220/0, in_queue=4391680, util=99.72%

पढ़ें: iodepth = 32, bw = 370844 B / s, iops = 90, avg = 353/7 xec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [388K/0K /s] [97 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3799
read: io=11004KB, bw=370844 B/s, iops=90, runt= 30385msec
slat (usec): min=4, max=140, avg=18.36, stdev= 3.36
clat (msec): min=15, max=1357, avg=353.27, stdev=264.64
lat (msec): min=15, max=1357, avg=353.29, stdev=264.64
clat percentiles (msec):
| 1.00th=[ 29], 5.00th=[ 47], 10.00th=[ 66], 20.00th=[ 106],
| 30.00th=[ 149], 40.00th=[ 208], 50.00th=[ 277], 60.00th=[ 375],
| 70.00th=[ 494], 80.00th=[ 611], 90.00th=[ 750], 95.00th=[ 840],
| 99.00th=[ 1012], 99.50th=[ 1106], 99.90th=[ 1319], 99.95th=[ 1352],
| 99.99th=[ 1352]
bw (KB/s): min= 264, max= 411, per=100.00%, avg=362.59, stdev=30.10
lat (msec): 20=0.07%, 50=5.85%, 100=12.72%, 250=27.59%, 500=24.50%
lat (msec): 750=19.12%, 1000=9.05%, 2000=1.09%
cpu: usr=0.09%, sys=0.41%, ctx=2751, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.3%, 16=0.6%, 32=98.9%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=2751/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=11004KB, aggrb=362KB/s, minb=362KB/s, maxb=362KB/s, mint=30385msec, maxt=30385msec

Disk stats (read/write):
sda: ios=2732/0, merge=0/0, ticks=953790/0, in_queue=963950, util=99.71%

पढ़ें: iodepth = 16, bw = 335270 B / s, iops = 81, avg = 19536-11.11ec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [300K/0K /s] [75 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3817
read: io=9880.0KB, bw=335270 B/s, iops=81, runt= 30176msec
slat (usec): min=4, max=50, avg=17.58, stdev= 4.03
clat (usec): min=217, max=755355, avg=195368.11, stdev=148034.81
lat (usec): min=269, max=755375, avg=195386.26, stdev=148035.38
clat percentiles (usec):
| 1.00th=[ 1896], 5.00th=[30080], 10.00th=[45824], 20.00th=[71168],
| 30.00th=[95744], 40.00th=[120320], 50.00th=[150528], 60.00th=[187392],
| 70.00th=[246784], 80.00th=[313344], 90.00th=[423936], 95.00th=[501760],
| 99.00th=[602112], 99.50th=[643072], 99.90th=[700416], 99.95th=[724992],
| 99.99th=[757760]
bw (KB/s): min= 278, max= 1078, per=100.00%, avg=327.22, stdev=102.27
lat (usec): 250=0.04%, 500=0.04%, 750=0.16%, 1000=0.16%
lat (msec): 2=0.69%, 4=1.70%, 10=0.97%, 20=0.16%, 50=7.69%
lat (msec): 100=20.12%, 250=38.70%, 500=24.37%, 750=5.14%, 1000=0.04%
cpu: usr=0.18%, sys=0.25%, ctx=2470, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=2470/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=9880KB, aggrb=327KB/s, minb=327KB/s, maxb=327KB/s, mint=30176msec, maxt=30176msec

Disk stats (read/write):
sda: ios=2468/0, merge=0/0, ticks=480783/0, in_queue=481256, util=99.71%

पढ़ें: iodepth = 8, bw = 304153 B / s, iops = 74, avg = 107.66 मिसे

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [304K/0K /s] [76 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3821
read: io=8944.0KB, bw=304153 B/s, iops=74, runt= 30112msec
slat (usec): min=4, max=139, avg=18.18, stdev= 3.87
clat (msec): min=13, max=307, avg=107.66, stdev=48.10
lat (msec): min=13, max=307, avg=107.68, stdev=48.10
clat percentiles (msec):
| 1.00th=[ 29], 5.00th=[ 38], 10.00th=[ 47], 20.00th=[ 61],
| 30.00th=[ 75], 40.00th=[ 93], 50.00th=[ 108], 60.00th=[ 120],
| 70.00th=[ 135], 80.00th=[ 151], 90.00th=[ 169], 95.00th=[ 186],
| 99.00th=[ 243], 99.50th=[ 251], 99.90th=[ 289], 99.95th=[ 297],
| 99.99th=[ 310]
bw (KB/s): min= 264, max= 327, per=100.00%, avg=297.14, stdev=15.40
lat (msec): 20=0.04%, 50=11.99%, 100=33.23%, 250=54.16%, 500=0.58%
cpu: usr=0.10%, sys=0.31%, ctx=2236, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.2%, 8=99.7%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=2236/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=8944KB, aggrb=297KB/s, minb=297KB/s, maxb=297KB/s, mint=30112msec, maxt=30112msec

Disk stats (read/write):
sda: ios=2224/0, merge=0/0, ticks=238710/0, in_queue=239166, util=99.71%

पढ़ें: iodepth = 4, bw = 233640 B / s, iops = 57, avg = 70.06 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [236K/0K /s] [59 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3825
read: io=6860.0KB, bw=233640 B/s, iops=57, runt= 30066msec
slat (usec): min=5, max=49, avg=18.10, stdev= 2.69
clat (msec): min=18, max=151, avg=70.06, stdev=19.49
lat (msec): min=18, max=151, avg=70.08, stdev=19.49
clat percentiles (msec):
| 1.00th=[ 35], 5.00th=[ 42], 10.00th=[ 47], 20.00th=[ 53],
| 30.00th=[ 59], 40.00th=[ 64], 50.00th=[ 70], 60.00th=[ 75],
| 70.00th=[ 80], 80.00th=[ 87], 90.00th=[ 95], 95.00th=[ 104],
| 99.00th=[ 124], 99.50th=[ 130], 99.90th=[ 151], 99.95th=[ 151],
| 99.99th=[ 151]
bw (KB/s): min= 201, max= 251, per=100.00%, avg=228.00, stdev=13.05
lat (msec): 20=0.06%, 50=15.57%, 100=77.73%, 250=6.65%
cpu: usr=0.10%, sys=0.21%, ctx=1715, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=99.8%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=1715/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=6860KB, aggrb=228KB/s, minb=228KB/s, maxb=228KB/s, mint=30066msec, maxt=30066msec

Disk stats (read/write):
sda: ios=1706/0, merge=0/0, ticks=119393/0, in_queue=119530, util=99.70%

पढ़ें: iodepth = 2, bw = 224993 B / s, iops = 54, avg = 364/7ec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [212K/0K /s] [53 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3829
read: io=6596.0KB, bw=224993 B/s, iops=54, runt= 30020msec
slat (usec): min=9, max=48, avg=22.16, stdev= 2.08
clat (msec): min=15, max=149, avg=36.37, stdev= 9.31
lat (msec): min=15, max=149, avg=36.40, stdev= 9.31
clat percentiles (msec):
| 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 29],
| 30.00th=[ 32], 40.00th=[ 35], 50.00th=[ 37], 60.00th=[ 38],
| 70.00th=[ 41], 80.00th=[ 44], 90.00th=[ 48], 95.00th=[ 51],
| 99.00th=[ 58], 99.50th=[ 60], 99.90th=[ 145], 99.95th=[ 151],
| 99.99th=[ 151]
bw (KB/s): min= 167, max= 262, per=100.00%, avg=219.48, stdev=17.43
lat (msec): 20=1.76%, 50=92.12%, 100=6.00%, 250=0.12%
cpu: usr=0.08%, sys=0.23%, ctx=1650, majf=0, minf=0
IO depths: 1=0.1%, 2=99.9%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=1649/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=6596KB, aggrb=219KB/s, minb=219KB/s, maxb=219KB/s, mint=30020msec, maxt=30020msec

Disk stats (read/write):
sda: ios=1641/0, merge=0/0, ticks=59690/0, in_queue=59730, util=99.70%

पढ़ें: iodepth = 1, bw = 227153 B / s, iops = 55, avg = 18.00 msec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [224K/0K /s] [56 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=3833
read: io=6656.0KB, bw=227153 B/s, iops=55, runt= 30005msec
slat (usec): min=12, max=145, avg=27.24, stdev= 3.99
clat (msec): min=3, max=35, avg=18.00, stdev= 5.54
lat (msec): min=3, max=35, avg=18.02, stdev= 5.54
clat percentiles (usec):
| 1.00th=[ 6752], 5.00th=[ 8896], 10.00th=[10816], 20.00th=[12992],
| 30.00th=[14656], 40.00th=[16192], 50.00th=[18048], 60.00th=[19584],
| 70.00th=[21120], 80.00th=[22912], 90.00th=[25472], 95.00th=[27264],
| 99.00th=[30592], 99.50th=[31104], 99.90th=[32384], 99.95th=[35584],
| 99.99th=[35584]
bw (KB/s): min= 182, max= 254, per=100.00%, avg=221.51, stdev=16.49
lat (msec): 4=0.06%, 10=7.57%, 20=55.05%, 50=37.32%
cpu: usr=0.10%, sys=0.16%, ctx=1664, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=1664/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=6656KB, aggrb=221KB/s, minb=221KB/s, maxb=221KB/s, mint=30005msec, maxt=30005msec

Disk stats (read/write):
sda: ios=1657/0, merge=0/0, ticks=29793/0, in_queue=29800, util=99.34%

पढ़ना विश्लेषण:

वांछित avg.latency स्तर को प्राप्त करने में विफल। निकटतम परिणाम: iodepth = 1, bw = 227153 B / s, iops = 55, avg = 18.00 msec ।

रिकॉर्ड: iodepth = 1024, bw = 454850 B / s, iops = 111, avg = 834411 सेकंड

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1024
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [0.0% done] [0K/132K /s] [0 /33 iops] [eta 11d:09h:04m:56s]
writetest: (groupid=0, jobs=1): err= 0: pid=3838
write: io=13948KB, bw=454850 B/s, iops=111, runt= 31401msec
slat (usec): min=3, max=878364, avg=8661.37, stdev=51377.60
clat (msec): min=1188, max=12599, avg=8344.81, stdev=2246.20
lat (msec): min=1426, max=12599, avg=8353.47, stdev=2245.59
clat percentiles (msec):
| 1.00th=[ 1827], 5.00th=[ 2933], 10.00th=[ 4555], 20.00th=[ 7570],
| 30.00th=[ 8160], 40.00th=[ 8455], 50.00th=[ 8717], 60.00th=[ 9110],
| 70.00th=[ 9503], 80.00th=[10028], 90.00th=[10683], 95.00th=[11076],
| 99.00th=[11600], 99.50th=[11731], 99.90th=[12256], 99.95th=[12387],
| 99.99th=[12649]
bw (KB/s): min= 0, max= 815, per=94.25%, avg=418.49, stdev=125.16
lat (msec): 2000=1.86%, >=2000=98.14%
cpu: usr=0.01%, sys=0.08%, ctx=235, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.5%, 32=0.9%, >=64=98.2%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
issued: total=r=0/w=0/d=3487, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=13948KB, aggrb=444KB/s, minb=444KB/s, maxb=444KB/s, mint=31401msec, maxt=31401msec

Disk stats (read/write):
sda: ios=85/3455, merge=0/0, ticks=3414/4329547, in_queue=4392543, util=100.00%

रिकॉर्ड: iodepth = 32, bw = 438475 B / s, iops = 107, avg = 298800.84 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/428K /s] [0 /107 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3861
write: io=12968KB, bw=438475 B/s, iops=107, runt= 30285msec
slat (usec): min=3, max=138, avg=19.15, stdev= 3.63
clat (usec): min=419, max=1160.5K, avg=298800.84, stdev=230187.03
lat (usec): min=471, max=1160.6K, avg=298820.55, stdev=230187.44
clat percentiles (msec):
| 1.00th=[ 11], 5.00th=[ 32], 10.00th=[ 52], 20.00th=[ 86],
| 30.00th=[ 126], 40.00th=[ 176], 50.00th=[ 231], 60.00th=[ 310],
| 70.00th=[ 408], 80.00th=[ 519], 90.00th=[ 652], 95.00th=[ 734],
| 99.00th=[ 873], 99.50th=[ 930], 99.90th=[ 1057], 99.95th=[ 1123],
| 99.99th=[ 1156]
bw (KB/s): min= 337, max= 881, per=100.00%, avg=428.34, stdev=73.09
lat (usec): 500=0.03%, 1000=0.03%
lat (msec): 2=0.09%, 4=0.15%, 10=0.68%, 20=1.30%, 50=7.25%
lat (msec): 100=14.53%, 250=28.16%, 500=25.72%, 750=17.46%, 1000=4.32%
lat (msec): 2000=0.28%
cpu: usr=0.22%, sys=0.38%, ctx=3242, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.5%, 32=99.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3242, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=12968KB, aggrb=428KB/s, minb=428KB/s, maxb=428KB/s, mint=30285msec, maxt=30285msec

Disk stats (read/write):
sda: ios=84/3228, merge=0/0, ticks=24/959137, in_queue=963340, util=99.78%

रिकॉर्ड: iodepth = 16, bw = 442678 B / s, iops = 108, avg = 147974.19 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=16
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/428K /s] [0 /107 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3883
write: io=13024KB, bw=442678 B/s, iops=108, runt= 30127msec
slat (usec): min=3, max=47, avg=19.10, stdev= 2.97
clat (usec): min=434, max=622395, avg=147974.19, stdev=107052.31
lat (usec): min=484, max=622416, avg=147993.84, stdev=107052.73
clat percentiles (msec):
| 1.00th=[ 8], 5.00th=[ 26], 10.00th=[ 37], 20.00th=[ 58],
| 30.00th=[ 77], 40.00th=[ 98], 50.00th=[ 121], 60.00th=[ 145],
| 70.00th=[ 182], 80.00th=[ 231], 90.00th=[ 306], 95.00th=[ 367],
| 99.00th=[ 474], 99.50th=[ 498], 99.90th=[ 586], 99.95th=[ 619],
| 99.99th=[ 619]
bw (KB/s): min= 333, max= 948, per=100.00%, avg=432.32, stdev=76.93
lat (usec): 500=0.03%, 1000=0.03%
lat (msec): 2=0.18%, 4=0.31%, 10=1.04%, 20=1.72%, 50=13.14%
lat (msec): 100=24.29%, 250=42.29%, 500=16.46%, 750=0.49%
cpu: usr=0.15%, sys=0.45%, ctx=3258, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=99.5%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3256, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=13024KB, aggrb=432KB/s, minb=432KB/s, maxb=432KB/s, mint=30127msec, maxt=30127msec

Disk stats (read/write):
sda: ios=84/3231, merge=0/0, ticks=17/476620, in_queue=478430, util=99.77%

रिकॉर्ड: iodepth = 8, bw = 424831 B / s, iops = 103, avg = 77074.72 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=8
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/416K /s] [0 /104 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3906
write: io=12484KB, bw=424831 B/s, iops=103, runt= 30091msec
slat (usec): min=3, max=46, avg=19.05, stdev= 2.84
clat (usec): min=388, max=290503, avg=77074.76, stdev=39278.20
lat (usec): min=436, max=290523, avg=77094.38, stdev=39278.62
clat percentiles (msec):
| 1.00th=[ 5], 5.00th=[ 23], 10.00th=[ 30], 20.00th=[ 41],
| 30.00th=[ 51], 40.00th=[ 63], 50.00th=[ 74], 60.00th=[ 86],
| 70.00th=[ 97], 80.00th=[ 112], 90.00th=[ 131], 95.00th=[ 145],
| 99.00th=[ 182], 99.50th=[ 202], 99.90th=[ 225], 99.95th=[ 245],
| 99.99th=[ 289]
bw (KB/s): min= 332, max= 952, per=100.00%, avg=415.36, stdev=80.17
lat (usec): 500=0.03%, 750=0.03%
lat (msec): 2=0.45%, 4=0.42%, 10=0.87%, 20=2.47%, 50=24.64%
lat (msec): 100=43.10%, 250=27.97%, 500=0.03%
cpu: usr=0.14%, sys=0.44%, ctx=3121, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=0.1%, 8=99.8%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3121, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=12484KB, aggrb=414KB/s, minb=414KB/s, maxb=414KB/s, mint=30091msec, maxt=30091msec

Disk stats (read/write):
sda: ios=84/3106, merge=0/0, ticks=20/238780, in_queue=239160, util=99.78%

रिकॉर्ड: iodepth = 4, bw = 438823 B / s, iops = 107, avg = 3729.6.06%

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/436K /s] [0 /109 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3928
write: io=12872KB, bw=438823 B/s, iops=107, runt= 30037msec
slat (usec): min=4, max=49, avg=19.17, stdev= 2.65
clat (usec): min=369, max=102682, avg=37297.06, stdev=15596.69
lat (usec): min=418, max=102702, avg=37316.80, stdev=15597.26
clat percentiles (msec):
| 1.00th=[ 3], 5.00th=[ 16], 10.00th=[ 20], 20.00th=[ 25],
| 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 41],
| 70.00th=[ 45], 80.00th=[ 50], 90.00th=[ 58], 95.00th=[ 66],
| 99.00th=[ 80], 99.50th=[ 88], 99.90th=[ 97], 99.95th=[ 99],
| 99.99th=[ 103]
bw (KB/s): min= 309, max= 955, per=100.00%, avg=428.51, stdev=82.23
lat (usec): 500=0.03%, 750=0.03%
lat (msec): 2=0.75%, 4=0.71%, 10=0.84%, 20=8.70%, 50=68.92%
lat (msec): 100=19.98%, 250=0.03%
cpu: usr=0.19%, sys=0.41%, ctx=3218, majf=0, minf=0
IO depths: 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3218, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=12872KB, aggrb=428KB/s, minb=428KB/s, maxb=428KB/s, mint=30037msec, maxt=30037msec

Disk stats (read/write):
sda: ios=84/3206, merge=0/0, ticks=20/119400, in_queue=119513, util=99.78%

रिकॉर्ड: iodepth = 2, bw = 436981 B / s, iops = 106, avg = 18715.34 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/416K /s] [0 /104 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3950
write: io=12812KB, bw=436981 B/s, iops=106, runt= 30023msec
slat (usec): min=5, max=155, avg=22.97, stdev= 3.82
clat (usec): min=393, max=73421, avg=18715.34, stdev=9080.87
lat (usec): min=441, max=73443, avg=18738.87, stdev=9081.44
clat percentiles (usec):
| 1.00th=[ 1048], 5.00th=[ 5280], 10.00th=[ 7968], 20.00th=[11200],
| 30.00th=[12992], 40.00th=[15424], 50.00th=[18048], 60.00th=[20096],
| 70.00th=[22656], 80.00th=[26496], 90.00th=[30848], 95.00th=[35072],
| 99.00th=[42752], 99.50th=[44288], 99.90th=[51456], 99.95th=[73216],
| 99.99th=[73216]
bw (KB/s): min= 317, max= 922, per=100.00%, avg=426.53, stdev=73.58
lat (usec): 500=0.03%, 750=0.06%, 1000=0.72%
lat (msec): 2=1.03%, 4=0.59%, 10=12.55%, 20=44.21%, 50=40.65%
lat (msec): 100=0.16%
cpu: usr=0.20%, sys=0.40%, ctx=3203, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3203, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=12812KB, aggrb=426KB/s, minb=426KB/s, maxb=426KB/s, mint=30023msec, maxt=30023msec

Disk stats (read/write):
sda: ios=84/3189, merge=0/0, ticks=17/59607, in_queue=59646, util=99.76%

रिकॉर्ड: iodepth = 1, bw = 430597 B / s, iops = 105, avg = 94764.07ecec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [w] [100.0% done] [0K/416K /s] [0 /104 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=3972
write: io=12616KB, bw=430597 B/s, iops=105, runt= 30002msec
slat (usec): min=6, max=48, avg=27.49, stdev= 3.66
clat (usec): min=342, max=35159, avg=9477.07, stdev=7171.91
lat (usec): min=358, max=35173, avg=9505.14, stdev=7172.29
clat percentiles (usec):
| 1.00th=[ 470], 5.00th=[ 564], 10.00th=[ 660], 20.00th=[ 820],
| 30.00th=[ 4576], 40.00th=[ 5920], 50.00th=[ 7776], 60.00th=[11968],
| 70.00th=[13760], 80.00th=[15424], 90.00th=[18816], 95.00th=[22912],
| 99.00th=[27008], 99.50th=[30080], 99.90th=[35072], 99.95th=[35072],
| 99.99th=[35072]
bw (KB/s): min= 319, max= 915, per=100.00%, avg=420.32, stdev=76.45
lat (usec): 500=2.09%, 750=16.52%, 1000=1.71%
lat (msec): 2=0.19%, 4=6.21%, 10=27.01%, 20=37.86%, 50=8.40%
cpu: usr=0.13%, sys=0.36%, ctx=3155, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=3154, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=12616KB, aggrb=420KB/s, minb=420KB/s, maxb=420KB/s, mint=30002msec, maxt=30002msec

Disk stats (read/write):
sda: ios=84/3141, merge=0/0, ticks=20/29754, in_queue=29787, util=99.29%

रिकॉर्ड विश्लेषण:

जैसा कि यह एक नियमितता बन गई है, डिस्क को जलाने के साथ चीजें बेहतर हैं। मैं 9.5 ms विलंबता पर 105 IOPS हासिल करने में कामयाब रहा। iodepth = 1, bw = 430597 B / s, iops = 105, avg = 9477.07 usec ।

सीडी-रोम

अभिविन्यास के लिए संख्याओं की अधिक आवश्यकता होने के कारण, विस्तार से परीक्षण करने की आवश्यकता नहीं है। ड्राइव ने हालत avg.latency <10 ms की अनुमति नहीं दी। निकटतम पठन परिणाम: iodepth = 1, bw = 23655 B / s, iops = 5 ।

पढ़ें: iodepth = 1, bw = 23655 B / s, iops = 5, avg = 172/2 gec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=1
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [32K/0K /s] [8 /0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=4518
read: io=712704 B, bw=23655 B/s, iops=5, runt= 30128msec
slat (usec): min=13, max=25, avg=14.97, stdev= 2.39
clat (msec): min=48, max=3651, avg=172.92, stdev=269.66
lat (msec): min=48, max=3651, avg=172.94, stdev=269.66
clat percentiles (msec):
| 1.00th=[ 52], 5.00th=[ 82], 10.00th=[ 92], 20.00th=[ 109],
| 30.00th=[ 121], 40.00th=[ 137], 50.00th=[ 151], 60.00th=[ 163],
| 70.00th=[ 180], 80.00th=[ 202], 90.00th=[ 223], 95.00th=[ 243],
| 99.00th=[ 269], 99.50th=[ 3654], 99.90th=[ 3654], 99.95th=[ 3654],
| 99.99th=[ 3654]
bw (KB/s): min= 1, max= 40, per=100.00%, avg=25.22, stdev= 5.62
lat (msec): 50=0.57%, 100=13.79%, 250=82.18%, 500=2.87%, >=2000=0.57%
cpu: usr=0.00%, sys=0.03%, ctx=182, majf=0, minf=0
IO depths: 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=174/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=696KB, aggrb=23KB/s, minb=23KB/s, maxb=23KB/s, mint=30128msec, maxt=30128msec

Disk stats (read/write):
sr0: ios=172/0, merge=0/0, ticks=29810/0, in_queue=29834, util=99.57%

लिनक्स पर रैम डिस्क / देव / रैम

पढ़ें: iodepth = 2, bw = 852105KB / s, iops = 213026, avg = 5.52 usec

root@host:~# fio ./read.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process

readtest: (groupid=0, jobs=1): err= 0: pid=4262
read: io=97140KB, bw=852105KB/s, iops=213026, runt= 114msec
slat (usec): min=2, max=118, avg= 2.47, stdev= 0.92
clat (usec): min=3, max=121, avg= 5.51, stdev= 0.94
lat (usec): min=6, max=124, avg= 8.34, stdev= 1.21
clat percentiles (usec):
| 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5],
| 30.00th=[ 5], 40.00th=[ 5], 50.00th=[ 6], 60.00th=[ 6],
| 70.00th=[ 6], 80.00th=[ 6], 90.00th=[ 6], 95.00th=[ 6],
| 99.00th=[ 6], 99.50th=[ 6], 99.90th=[ 9], 99.95th=[ 13],
| 99.99th=[ 15]
lat (usec): 4=0.01%, 10=99.91%, 20=0.07%, 50=0.01%, 250=0.01%
cpu: usr=34.51%, sys=64.60%, ctx=1, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=24285/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
READ: io=97140KB, aggrb=852105KB/s, minb=852105KB/s, maxb=852105KB/s, mint=114msec, maxt=114msec

Disk stats (read/write):
ram1: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%

पढ़ना विश्लेषण:

ऐसा लगता है कि सब कुछ सच है, रैम डिस्क पढ़ने का माप मापा से मेल खाती है , लेकिन एक चेतावनी है:

 cpu: usr = 34.51%, sys = 64.60%, ctx = 1, majf = 0, minf/ 0

दूसरे शब्दों में, हम प्रोसेसर के प्रदर्शन में भाग गए। और यह तथ्य नहीं है कि रैम डिस्क ही है। पल में पढ़ने का परिणाम: iodepth = 2, bw = 852105KB / s, iops = 213026, avg = 5.51 usec ।

रिकॉर्ड: iodepth = 2, bw = 693857KB / s, iops = 173464, avg = 6.44 usec

root@host:~# fio ./write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=2
2.0.8
Starting 1 process

writetest: (groupid=0, jobs=1): err= 0: pid=4293
write: io=97140KB, bw=693857KB/s, iops=173464, runt= 140msec
slat (usec): min=3, max=120, avg= 3.35, stdev= 0.96
clat (usec): min=4, max=124, avg= 6.44, stdev= 1.25
lat (usec): min=9, max=128, avg=10.12, stdev= 1.50
clat percentiles (usec):
| 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 6],
| 30.00th=[ 6], 40.00th=[ 6], 50.00th=[ 6], 60.00th=[ 7],
| 70.00th=[ 7], 80.00th=[ 7], 90.00th=[ 7], 95.00th=[ 7],
| 99.00th=[ 8], 99.50th=[ 8], 99.90th=[ 10], 99.95th=[ 14],
| 99.99th=[ 52]
lat (usec): 10=99.80%, 20=0.19%, 100=0.01%, 250=0.01%
cpu: usr=20.86%, sys=76.26%, ctx=1, majf=0, minf=0
IO depths: 1=0.1%, 2=100.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete: 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued: total=r=0/w=0/d=24285, short=r=0/w=0/d=0

Run status group 0 (all jobs):
WRITE: io=97140KB, aggrb=693857KB/s, minb=693857KB/s, maxb=693857KB/s, mint=140msec, maxt=140msec

Disk stats (read/write):
ram1: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%

रिकॉर्ड विश्लेषण:

रैम डिस्क पर लिखने के साथ ही। हम प्रोसेसर में भाग गए:

 cpu: usr = 20.86%, sys = 76.26%, ctx = 1, majf = 0, minus = 0

वर्तमान रिकॉर्ड परिणाम: iodepth = 2, bw = 693857KB / s, iops = 173464, avg = 6.44 usec

परीक्षण परिणामों का सारांश तालिका:

जो सवाल उठे:

? SD- 1, SSD- — 64.
30 IOPS ?
RAM- CPU. ?

:

. .
UPDATE: 30 RAM-, IOPS. SSD- .
.
SSD- . IOPS , latency.
enterprise consumer IOPS Latency. — . .
enterprise consumer .
. .
IOPS , . «» RAID, IOPS .
500 .

पीएस मैं एंटरप्राइज़-स्तरीय डिस्क के परीक्षण के अधिक परिणाम चाहूंगा, लेकिन यह अब हाथ में नहीं था।

आपका दिन शुभ हो!

हम ड्राइव के प्रदर्शन या IOPS के बारे में फिर से मापते हैं

उद्देश्य:

उपकरण:

परीक्षण विधि:

परिणाम:

सैंडिस्क क्लास 10 यूएचएस 1 एक्सट्रीम प्रो 8 जीबी एसडी कार्ड (95 एमबी / एस तक पढ़ें, 90 एमबी / एस तक लिखें)

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

टीम कक्षा 10 32 जीबी एसडी कार्ड (20 एमबी / एस तक)

रिकॉर्ड विश्लेषण:

2GB SD कार्ड से पार करें

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

SSD OCZ-AGILITY3 60 GB

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

हिताची डेस्कस्टार HDS723020BLA642 उपभोक्ता-स्तरीय एसएटीए ड्राइव 2 टीबी 7200 आरपीएम, 64 एमबी

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

SATA- ड्राइव एंटरप्राइज-लेवल वेस्टर्न डिजिटल RE3 WD2502ABYS-23B7A0 250 GB 7200 rpm 16 MB

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

SATA ड्राइव उपभोक्ता-स्तर सीगेट बाराकुडा 7200.11 ST3320613AS 320 जीबी 7200 आरपीएम 16 एमबी

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

सीडी-रोम

लिनक्स पर रैम डिस्क / देव / रैम

पढ़ना विश्लेषण:

रिकॉर्ड विश्लेषण:

जो सवाल उठे:

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