एक अनुकूलन की कहानी

चरण 1

  211267 function calls (203946 primitive calls) in 49.801 seconds Ordered by: cumulative time ncalls tottime percall cumtime percall filename:lineno(function) 1 0.002 0.002 49.801 49.801 ule:19(<module>) 1 0.000 0.000 49.415 49.415 ule:29(main) 4598/4584 0.007 0.000 49.224 0.011 types.py:46(function) 4599/4585 49.208 0.011 49.218 0.011 {method 'invoke' of 'gi.CallableInfo' objects} 1 0.001 0.001 46.013 46.013 app.py:47(__init__) 1 0.001 0.001 45.945 45.945 app.py:230(__populate) 24 0.007 0.000 45.936 1.914 app.py:211(new_from_file) 45 0.002 0.000 45.454 1.010 iconmanager.py:93(get_icon) 45 0.014 0.000 0.408 0.009 iconmanager.py:29(__init__) 1 0.000 0.000 0.343 0.343 iconmanager.py:71(get_icon_with_file) 1 0.000 0.000 0.343 0.343 iconmanager.py:60(get_icon_with_name) ................................................................................ 

चरण 2

 def __populate(self): self.launcher_view.clear_list(); self.unity = self.gsettings.get_value('favorites') log.info(self.unity) for menu_item in self.unity: self.new_from_file(menu_item, False) self.launcher_view.connect('selection-changed', self.__launcher_view_row_change) #make first row active self.launcher_view.set_selected_iter(0) 

 def new_from_file(self, filename, selected=True): try: file_path = normalize_path(filename, True) obj = DesktopParser(file_path) sname = obj.get('Name',locale=LOCALE) desc = obj.get('Comment',locale=LOCALE) icon = obj.get('Icon') pix = IconManager().get_icon(ThemedIcon('image-missing'),32) if icon: if icon.rfind('.') != -1: pix = IconManager().get_icon(FileIcon(File(icon)),32) else: pix = IconManager().get_icon(ThemedIcon(icon),32) data = (pix, '%s' % sname, obj, sname.upper(), file_path) return self.launcher_view.add_row(data,selected) except: return None 

 pix = IconManager().get_icon(ThemedIcon('image-missing'),32) 

 self.pix_missing = IconManager().get_icon(ThemedIcon('image-missing'), 32) 

 194247 function calls (186926 primitive calls) in 8.863 seconds Ordered by: cumulative time ncalls tottime percall cumtime percall filename:lineno(function) 1 0.007 0.007 8.864 8.864 ule:19(<module>) 1 0.000 0.000 8.363 8.363 ule:29(main) 2988/2974 0.008 0.000 8.189 0.003 types.py:46(function) 2989/2975 8.176 0.003 8.182 0.003 {method 'invoke' of 'gi.CallableInfo' objects} 1 0.001 0.001 6.817 6.817 app.py:48(__init__) 1 0.000 0.000 6.704 6.704 app.py:244(__populate) 24 0.003 0.000 6.697 0.279 app.py:224(new_from_file) 22 0.001 0.000 6.489 0.295 iconmanager.py:93(get_icon) 1 0.004 0.004 0.248 0.248 app.py:18(<module>) 

चरण 3

 self.icon_manager = IconManager() 

 178980 function calls (171659 primitive calls) in 1.949 seconds Ordered by: cumulative time ncalls tottime percall cumtime percall filename:lineno(function) 1 0.001 0.001 1.949 1.949 ule:19(<module>) 1 0.000 0.000 1.449 1.449 ule:29(main) 1560/1546 0.004 0.000 1.314 0.001 types.py:46(function) 1561/1547 1.304 0.001 1.310 0.001 {method 'invoke' of 'gi.CallableInfo' objects} 1 0.001 0.001 0.285 0.285 app.py:48(__init__) 1 0.004 0.004 0.252 0.252 app.py:18(<module>) 206/45 0.005 0.000 0.191 0.004 {__import__} 9/5 0.000 0.000 0.187 0.037 importer.py:56(load_module) 9/5 0.000 0.000 0.186 0.037 module.py:239(_load) 1 0.002 0.002 0.174 0.174 pkg_resources.py:14(<module>) 1 0.000 0.000 0.159 0.159 app.py:245(__populate) 2617/377 0.011 0.000 0.159 0.000 {map} 24 0.003 0.000 0.153 0.006 app.py:225(new_from_file) 1 0.004 0.004 0.146 0.146 Gtk.py:22(<module>) 159/132 0.012 0.000 0.132 0.001 module.py:111(__getattr__) 1 0.000 0.000 0.107 0.107 pkg_resources.py:698(subscribe) 102 0.000 0.000 0.107 0.001 pkg_resources.py:2835(<lambda>) 102 0.001 0.000 0.106 0.001 pkg_resources.py:2256(activate) 22 0.001 0.000 0.098 0.004 iconmanager.py:93(get_icon) 

परिणाम

 === modified file 'unitylaunchereditor/dialogs/app.py' --- unitylaunchereditor/dialogs/app.py 2011-11-28 17:12:07 +0000 +++ unitylaunchereditor/dialogs/app.py 2013-02-26 16:47:52 +0000 @@ -71,6 +71,8 @@ #bottom window buttons self.__create_bottom_box(main_box) + self.icon_manager = IconManager() + self.pix_missing = self.icon_manager.get_icon(ThemedIcon('image-missing'),32) self.__populate() self.connect('delete-event', Gtk.main_quit) @@ -198,12 +200,12 @@ sname = info['Name'] desc = info['Comment'] icon = info['Icon'] - pix = IconManager().get_icon(ThemedIcon('image-missing'),32) + pix = self.pix_missing if icon: if icon.rfind('.') != -1: - pix = IconManager().get_icon(FileIcon(File(icon)),32) + pix = self.icon_manager.get_icon(FileIcon(File(icon)),32) else: - pix = IconManager().get_icon(ThemedIcon(icon),32) + pix = self.icon_manager.get_icon(ThemedIcon(icon),32) data = (pix, '%s' % sname, obj, sname.upper(), file_path) return self.launcher_view.add_row(data,True) @@ -215,12 +217,12 @@ sname = obj.get('Name',locale=LOCALE) desc = obj.get('Comment',locale=LOCALE) icon = obj.get('Icon') - pix = IconManager().get_icon(ThemedIcon('image-missing'),32) + pix = self.pix_missing if icon: if icon.rfind('.') != -1: - pix = IconManager().get_icon(FileIcon(File(icon)),32) + pix = self.icon_manager.get_icon(FileIcon(File(icon)),32) else: - pix = IconManager().get_icon(ThemedIcon(icon),32) + pix = self.icon_manager.get_icon(ThemedIcon(icon),32) data = (pix, '%s' % sname, obj, sname.upper(), file_path) return self.launcher_view.add_row(data,selected) @@ -325,12 +327,12 @@ self.launcher_view.set_value(obj['Name'], self.launcher_view.COLUMN_NAME) self.launcher_view.set_value(obj['Name'].upper(), self.launcher_view.COLUMN_NAME_UPPER) icon = obj['Icon'] - pix = IconManager().get_icon(ThemedIcon('image-missing'),32) + pix = self.pix_missing if icon: if icon.rfind('.') != -1: - pix = IconManager().get_icon(FileIcon(File(icon)),32) + pix = self.icon_manager.get_icon(FileIcon(File(icon)),32) else: - pix = IconManager().get_icon(ThemedIcon(icon),32) + pix = self.icon_manager.get_icon(ThemedIcon(icon),32) self.launcher_view.set_value(pix, self.launcher_view.COLUMN_ICON) if button_type == TOOLBUTTON_REMOVE: 

और मैंने हाथी को नोटिस नहीं किया

• दो दर्जन मेनू आइटम के लिए बहुत लंबा (50 सेकंड) लॉन्च;
• पहले अनुकूलन के बाद लोड समय (5 गुना) में अप्रत्याशित कमी।

 def __init__(self): self.icontheme = Gtk.IconTheme.get_default() # add the humanity icon theme to the iconpath, as not all icon # themes contain all the icons we need # this *shouldn't* lead to any performance regressions path = '/usr/share/icons/Humanity' if exists(path): for subpath in listdir(path): subpath = join(path, subpath) if isdir(subpath): for subsubpath in listdir(subpath): subsubpath = join(subpath, subsubpath) if isdir(subsubpath): self.icontheme.append_search_path(subsubpath) 

 === modified file 'unitylaunchereditor/core/iconmanager.py' --- unitylaunchereditor/core/iconmanager.py 2011-11-26 14:36:43 +0000 +++ unitylaunchereditor/core/iconmanager.py 2013-02-28 19:13:42 +0000 @@ -28,6 +28,7 @@ class IconManager: def __init__(self): self.icontheme = Gtk.IconTheme.get_default() + search_paths = self.icontheme.get_search_path() # add the humanity icon theme to the iconpath, as not all icon # themes contain all the icons we need # this *shouldn't* lead to any performance regressions @@ -38,7 +39,7 @@ if isdir(subpath): for subsubpath in listdir(subpath): subsubpath = join(subpath, subsubpath) - if isdir(subsubpath): + if isdir(subsubpath) and subsubpath not in search_paths: self.icontheme.append_search_path(subsubpath) def get_icon_with_type(self,filepath, size=24):