1 #!/usr/bin/env python 2 # 3 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 4 # Use of this source code is governed by a BSD-style license that can be 5 # found in the LICENSE file. 6 7 """Provides iotop/top style profiling for android. 8 9 Usage: 10 ./device_stats_monitor.py --hz=20 --duration=5 --outfile=/tmp/foo 11 """ 12 13 import optparse 14 import os 15 import sys 16 import time 17 18 from pylib import android_commands 19 from pylib import device_stats_monitor 20 from pylib.utils import test_options_parser 21 22 23 def main(argv): 24 option_parser = optparse.OptionParser() 25 option_parser.add_option('--hz', type='int', default=20, 26 help='Number of samples/sec.') 27 option_parser.add_option('--duration', type='int', default=5, 28 help='Seconds to monitor.') 29 option_parser.add_option('--outfile', default='/tmp/devicestatsmonitor', 30 help='Location to start output file.') 31 test_options_parser.AddBuildTypeOption(option_parser) 32 options, args = option_parser.parse_args(argv) 33 34 monitor = device_stats_monitor.DeviceStatsMonitor( 35 android_commands.AndroidCommands(), options.hz, options.build_type) 36 monitor.Start() 37 print 'Waiting for %d seconds while profiling.' % options.duration 38 time.sleep(options.duration) 39 url = monitor.StopAndCollect(options.outfile) 40 print 'View results in browser at %s' % url 41 42 if __name__ == '__main__': 43 sys.exit(main(sys.argv)) 44
