diff options
Diffstat (limited to 'debug_toolbar/panels/timer.py')
| -rw-r--r-- | debug_toolbar/panels/timer.py | 63 |
1 files changed, 61 insertions, 2 deletions
diff --git a/debug_toolbar/panels/timer.py b/debug_toolbar/panels/timer.py index ea8ed4a..352bf55 100644 --- a/debug_toolbar/panels/timer.py +++ b/debug_toolbar/panels/timer.py @@ -1,23 +1,82 @@ +try: + import resource +except ImportError: + pass # Will fail on Win32 systems import time +from django.template.loader import render_to_string from debug_toolbar.panels import DebugPanel + class TimerDebugPanel(DebugPanel): """ Panel that displays the time a response took in milliseconds. """ name = 'Timer' + try: # if resource module not available, don't show content panel + resource + except NameError: + has_content = False + has_resource = False + else: + has_content = True + has_resource = True def process_request(self, request): self._start_time = time.time() + if self.has_resource: + self._start_rusage = resource.getrusage(resource.RUSAGE_SELF) def process_response(self, request, response): self.total_time = (time.time() - self._start_time) * 1000 + if self.has_resource: + self._end_rusage = resource.getrusage(resource.RUSAGE_SELF) def title(self): - return 'Time: %0.2fms' % (self.total_time) + if self.has_resource: + utime = self._end_rusage.ru_utime - self._start_rusage.ru_utime + stime = self._end_rusage.ru_stime - self._start_rusage.ru_stime + return 'Time: %0.2fms, %0.2fms CPU' % (self.total_time, (utime + stime) * 1000.0) + else: + return 'Time: %0.2fms' % (self.total_time) def url(self): return '' + def _elapsed_ru(self, name): + return getattr(self._end_rusage, name) - getattr(self._start_rusage, name) + def content(self): - return '' + + utime = 1000 * self._elapsed_ru('ru_utime') + stime = 1000 * self._elapsed_ru('ru_stime') + vcsw = self._elapsed_ru('ru_nvcsw') + ivcsw = self._elapsed_ru('ru_nivcsw') + minflt = self._elapsed_ru('ru_minflt') + majflt = self._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 + + 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.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 = { + 'rows': rows, + } + return render_to_string('debug_toolbar/panels/timer.html', context) |