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#!/usr/bin/env python
#
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Provides iotop/top style profiling for android.
Usage:
./device_stats_monitor.py --hz=20 --duration=5 --outfile=/tmp/foo
"""
import optparse
import os
import sys
import time
from pylib import android_commands
from pylib import device_stats_monitor
from pylib import test_options_parser
def main(argv):
option_parser = optparse.OptionParser()
option_parser.add_option('--hz', type='int', default=20,
help='Number of samples/sec.')
option_parser.add_option('--duration', type='int', default=5,
help='Seconds to monitor.')
option_parser.add_option('--outfile', default='/tmp/devicestatsmonitor',
help='Location to start output file.')
test_options_parser.AddBuildTypeOption(option_parser)
options, args = option_parser.parse_args(argv)
monitor = device_stats_monitor.DeviceStatsMonitor(
android_commands.AndroidCommands(), options.hz, options.build_type)
monitor.Start()
print 'Waiting for %d seconds while profiling.' % options.duration
time.sleep(options.duration)
url = monitor.StopAndCollect(options.outfile)
print 'View results in browser at %s' % url
if __name__ == '__main__':
sys.exit(main(sys.argv))
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