mirror of
https://github.com/pallets-eco/flask-debugtoolbar.git
synced 2026-01-09 23:19:31 -06:00
1c594b9ba3
- Rename the package to flask_debugtoolbar - Fix importing of the panels so that the views in the panels are correctly registered in the blueprint There is still one major problem in the sqlalchemy panel where we are not able to get the SQLAlchemy reference
95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
try:
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import resource
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except ImportError:
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pass # Will fail on Win32 systems
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import time
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from flask_debugtoolbar.panels import DebugPanel
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_ = lambda x: x
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class TimerDebugPanel(DebugPanel):
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"""
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Panel that displays the time a response took in milliseconds.
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"""
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name = 'Timer'
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try: # if resource module not available, don't show content panel
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resource
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except NameError:
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has_content = False
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has_resource = False
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else:
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has_content = True
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has_resource = True
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def process_request(self, request):
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self._start_time = time.time()
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if self.has_resource:
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self._start_rusage = resource.getrusage(resource.RUSAGE_SELF)
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def process_response(self, request, response):
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self.total_time = (time.time() - self._start_time) * 1000
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if self.has_resource:
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self._end_rusage = resource.getrusage(resource.RUSAGE_SELF)
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def nav_title(self):
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return _('Time')
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def nav_subtitle(self):
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# TODO l10n
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if self.has_resource:
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utime = self._end_rusage.ru_utime - self._start_rusage.ru_utime
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stime = self._end_rusage.ru_stime - self._start_rusage.ru_stime
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return 'CPU: %0.2fms (%0.2fms)' % ((utime + stime) * 1000.0, self.total_time)
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else:
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return 'TOTAL: %0.2fms' % (self.total_time)
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def title(self):
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return _('Resource Usage')
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def url(self):
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return ''
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def _elapsed_ru(self, name):
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return getattr(self._end_rusage, name) - getattr(self._start_rusage, name)
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def content(self):
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utime = 1000 * self._elapsed_ru('ru_utime')
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stime = 1000 * self._elapsed_ru('ru_stime')
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vcsw = self._elapsed_ru('ru_nvcsw')
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ivcsw = self._elapsed_ru('ru_nivcsw')
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minflt = self._elapsed_ru('ru_minflt')
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majflt = self._elapsed_ru('ru_majflt')
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# these are documented as not meaningful under Linux. If you're running BSD
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# feel free to enable them, and add any others that I hadn't gotten to before
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# I noticed that I was getting nothing but zeroes and that the docs agreed. :-(
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#
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# blkin = self._elapsed_ru('ru_inblock')
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# blkout = self._elapsed_ru('ru_oublock')
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# swap = self._elapsed_ru('ru_nswap')
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# rss = self._end_rusage.ru_maxrss
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# srss = self._end_rusage.ru_ixrss
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# urss = self._end_rusage.ru_idrss
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# usrss = self._end_rusage.ru_isrss
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# TODO l10n on values
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rows = (
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(_('User CPU time'), '%0.3f msec' % utime),
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(_('System CPU time'), '%0.3f msec' % stime),
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(_('Total CPU time'), '%0.3f msec' % (utime + stime)),
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(_('Elapsed time'), '%0.3f msec' % self.total_time),
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(_('Context switches'), '%d voluntary, %d involuntary' % (vcsw, ivcsw)),
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# ('Memory use', '%d max RSS, %d shared, %d unshared' % (rss, srss, urss + usrss)),
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# ('Page faults', '%d no i/o, %d requiring i/o' % (minflt, majflt)),
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# ('Disk operations', '%d in, %d out, %d swapout' % (blkin, blkout, swap)),
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)
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context = self.context.copy()
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context.update({
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'rows': rows,
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})
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return self.render('panels/timer.html', context)
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