webrtc/tools/cpu/cpu_mon.py
Henrik Kjellander 57e5fd2e60 PRESUBMIT: Improve PyLint check and add GN format check.
Add pylintrc file based on
https://code.google.com/p/chromium/codesearch#chromium/src/tools/perf/pylintrc
bit tightened up quite a bit (the one in depot_tools is far
more relaxed).

Remove a few excluded directories from pylint check and fixed/
suppressed all warnings generated.

Add GN format check + formatted all GN files using 'gn format'.
Cleanup redundant rules in tools/PRESUBMIT.py

TESTED=Ran 'git cl presubmit -vv', fixed the PyLint violations.
Ran it again with a modification in webrtc/build/webrtc.gni, formatted
all the GN files and ran it again.

R=henrika@webrtc.org, phoglund@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/50069004

Cr-Commit-Position: refs/heads/master@{#9274}
2015-05-25 10:55:50 +00:00

84 lines
2.0 KiB
Python

#!/usr/bin/env python
#
# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS. All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.
import psutil
import sys
import numpy
from matplotlib import pyplot
class CpuSnapshot(object):
def __init__(self, label):
self.label = label
self.samples = []
def Capture(self, sample_count):
print ('Capturing %d CPU samples for %s...' %
((sample_count - len(self.samples)), self.label))
while len(self.samples) < sample_count:
self.samples.append(psutil.cpu_percent(1.0, False))
def Text(self):
return ('%s: avg=%s, median=%s, min=%s, max=%s' %
(self.label, numpy.average(self.samples),
numpy.median(self.samples),
numpy.min(self.samples), numpy.max(self.samples)))
def Max(self):
return numpy.max(self.samples)
def GrabCpuSamples(sample_count):
print 'Label for snapshot (enter to quit): '
label = raw_input().strip()
if len(label) == 0:
return None
snapshot = CpuSnapshot(label)
snapshot.Capture(sample_count)
return snapshot
def main():
print 'How many seconds to capture per snapshot (enter for 60)?'
sample_count = raw_input().strip()
if len(sample_count) > 0 and int(sample_count) > 0:
sample_count = int(sample_count)
else:
print 'Defaulting to 60 samples.'
sample_count = 60
snapshots = []
while True:
snapshot = GrabCpuSamples(sample_count)
if snapshot == None:
break
snapshots.append(snapshot)
if len(snapshots) == 0:
print 'no samples captured'
return -1
pyplot.title('CPU usage')
for s in snapshots:
pyplot.plot(s.samples, label=s.Text(), linewidth=2)
pyplot.legend()
pyplot.show()
return 0
if __name__ == '__main__':
sys.exit(main())