Difference between revisions of "Development Team/Performance"
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(New page: Just a quick dump of the snippets I use for profiling: First use a system-wide profiler like sysprof Next, profile python code, open the output with kcachegrind: import os import cPro...) |
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| + | <noinclude>{{ GoogleTrans-en | es =show | bg =show | zh-CN =show | zh-TW =show | hr =show | cs =show | da =show | nl =show | fi =show | fr =show | de =show | el =show | hi =show | it =show | ja =show | ko =show | no =show | pl =show | pt =show | ro =show | ru =show | sv =show }}</noinclude> | ||
Just a quick dump of the snippets I use for profiling: | Just a quick dump of the snippets I use for profiling: | ||
Revision as of 00:44, 12 June 2008
Just a quick dump of the snippets I use for profiling:
First use a system-wide profiler like sysprof
Next, profile python code, open the output with kcachegrind:
import os import cProfile import lsprofcalltree # http://www.gnome.org/~johan/lsprofcalltree.py profiler = cProfile.Profile() profiler.enable() ### code to profile ### profiler.disable() k = lsprofcalltree.KCacheGrind(profiler) data = open('/tmp/import.kgrind', 'w+') k.output(data) data.close()
Check for leaks:
import gobject
gobject.timeout_add(10000, self._log_mem_usage)
def _log_mem_usage(self):
import analysis, os, gc
for obj in gc.get_objects():
if hasattr(obj, '__class__') and obj.__class__.__name__.find('ChooserListView') > -1:
logging.debug(obj)
for i in range(0, 10):
gc.collect()
logging.debug('mem: %i' % analysis.Analysis(os.getpid()).ApproxRealMemoryUsage())
return True
Rendering time of a widget/window:
def do_expose_event(self, event):
import time
t = time.time()
hippo.Canvas.do_expose_event(self, event)
logging.debug('listview expose event: %r' % (time.time() - t))