tools/perf/record_android_profile.py

   1 #!/usr/bin/env python
   2 # Copyright 2013 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import os
   7 import sys
   8 import tempfile
   9
  10 sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, 'telemetry'))
  11
  12 from telemetry.core import browser_finder
  13 from telemetry.core import browser_options
  14
  15
  16 def _RunPrebuilt(options):
  17   browser_to_create = browser_finder.FindBrowser(options)
  18   with browser_to_create.Create(options) as browser:
  19     output_file = os.path.join(tempfile.mkdtemp(), options.profiler)
  20     raw_input('Press enter to start profiling...')
  21     print '>> Starting profiler', options.profiler
  22     browser.profiling_controller.Start(options.profiler, output_file)
  23     try:
  24       raw_input('Press enter or CTRL+C to stop')
  25     except KeyboardInterrupt:
  26       pass
  27     finally:
  28       print '<< Stopping ...',
  29       sys.stdout.flush()
  30       browser.profiling_controller.Stop()
  31     print 'Stopped profiler ', options.profiler
  32
  33
  34 if __name__ == '__main__':
  35   browser_finder_options = browser_options.BrowserFinderOptions()
  36   parser = browser_finder_options.CreateParser('')
  37   profiler_options, _ = parser.parse_args()
  38   sys.exit(_RunPrebuilt(profiler_options))