class TimerDebugPanel(DebugPanel): """ Panel that displays the time a response took in milliseconds. """ name = 'Timer' def __init__(self, context={}): super(TimerDebugPanel, self).__init__(context) self.timer = DebugTimer() self.has_content = self.timer.has_resource def process_request(self, request): self.timer.start(request) def process_response(self, request, response): self.timer.stop(request, response) def nav_title(self): return _('Time') def nav_subtitle(self): # TODO l10n if self.timer.has_resource: utime = self.timer._end_rusage.ru_utime - self.timer._start_rusage.ru_utime stime = self.timer._end_rusage.ru_stime - self.timer._start_rusage.ru_stime return 'CPU: %0.2fms (%0.2fms)' % ((utime + stime) * 1000.0, self.timer.total_time) else: return 'TOTAL: %0.2fms' % (self.timer.total_time) def title(self): return _('Resource Usage') def url(self): return '' def content(self): utime = 1000 * self.timer.elapsed_ru('ru_utime') stime = 1000 * self.timer.elapsed_ru('ru_stime') vcsw = self.timer.elapsed_ru('ru_nvcsw') ivcsw = self.timer.elapsed_ru('ru_nivcsw') minflt = self.timer.elapsed_ru('ru_minflt') majflt = self.timer.elapsed_ru('ru_majflt') # these are documented as not meaningful under Linux. If you're running BSD # feel free to enable them, and add any others that I hadn't gotten to before # I noticed that I was getting nothing but zeroes and that the docs agreed. :-( # # blkin = self._elapsed_ru('ru_inblock') # blkout = self._elapsed_ru('ru_oublock') # swap = self._elapsed_ru('ru_nswap') # rss = self._end_rusage.ru_maxrss # srss = self._end_rusage.ru_ixrss # urss = self._end_rusage.ru_idrss # usrss = self._end_rusage.ru_isrss # TODO l10n on values rows = ( (_('User CPU time'), '%0.3f msec' % utime), (_('System CPU time'), '%0.3f msec' % stime), (_('Total CPU time'), '%0.3f msec' % (utime + stime)), (_('Elapsed time'), '%0.3f msec' % self.timer.total_time), (_('Context switches'), '%d voluntary, %d involuntary' % (vcsw, ivcsw)), # ('Memory use', '%d max RSS, %d shared, %d unshared' % (rss, srss, urss + usrss)), # ('Page faults', '%d no i/o, %d requiring i/o' % (minflt, majflt)), # ('Disk operations', '%d in, %d out, %d swapout' % (blkin, blkout, swap)), ) context = self.context.copy() context.update({ 'rows': rows, }) return render_to_string('debug_toolbar/panels/timer.html', context)
def __init__(self, context={}): super(TimerDebugPanel, self).__init__(context) self.timer = DebugTimer() self.has_content = self.timer.has_resource