def __init__(self, adb):
super(DS2784PowerMonitor, self).__init__()
self._adb = adb
self._powermonitor_process_port = None
android_prebuilt_profiler_helper.InstallOnDevice(adb, 'file_poller')
self._file_poller_binary = android_prebuilt_profiler_helper.GetDevicePath(
'file_poller')
def StartMonitoringPower(self, browser):
assert not self._powermonitor_process_port, (
'Must call StopMonitoringPower().')
android_prebuilt_profiler_helper.InstallOnDevice(
self._device, 'file_poller')
self._powermonitor_process_port = int(
self._device.RunShellCommand(
'%s %d %s %s %s' % (self._file_poller_binary, SAMPLE_RATE_HZ,
CHARGE_COUNTER, CURRENT, VOLTAGE))[0])
def __init__(self, browser_backend, platform_backend, output_path, state):
super(TCPDumpProfiler, self).__init__(
browser_backend, platform_backend, output_path, state)
if platform_backend.GetOSName() == 'android':
android_prebuilt_profiler_helper.InstallOnDevice(
browser_backend.adb, 'tcpdump')
self._platform_profiler = _TCPDumpProfilerAndroid(
browser_backend.adb, output_path)
else:
self._platform_profiler = _TCPDumpProfilerLinux(output_path)
def PurgeUnpinnedMemory(self):
"""Purges the unpinned ashmem memory for the whole system.
This can be used to make memory measurements more stable in particular.
"""
android_prebuilt_profiler_helper.InstallOnDevice(
self._adb, 'purge_ashmem')
if self._adb.RunShellCommand(
android_prebuilt_profiler_helper.GetDevicePath('purge_ashmem'),
log_result=True):
return
raise Exception('Error while purging ashmem.')
def PrepareDeviceForPerf(device):
"""Set up a device for running perf.
Args:
device: DeviceUtils instance identifying the target device.
Returns:
The path to the installed perf binary on the device.
"""
android_prebuilt_profiler_helper.InstallOnDevice(device, 'perf')
# Make sure kernel pointers are not hidden.
device.WriteFile('/proc/sys/kernel/kptr_restrict', '0', as_root=True)
return android_prebuilt_profiler_helper.GetDevicePath('perf')
def __init__(self, browser_backend, platform_backend, output_path, state):
super(PerfProfiler, self).__init__(browser_backend, platform_backend,
output_path, state)
process_output_file_map = self._GetProcessOutputFileMap()
self._process_profilers = []
if platform_backend.GetOSName() == 'android':
android_prebuilt_profiler_helper.GetIfChanged('perfhost')
os.chmod(android_prebuilt_profiler_helper.GetHostPath('perfhost'),
stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR)
android_prebuilt_profiler_helper.InstallOnDevice(
browser_backend.adb, 'perf')
for pid, output_file in process_output_file_map.iteritems():
if 'zygote' in output_file:
continue
self._process_profilers.append(
_SingleProcessPerfProfiler(pid, output_file, browser_backend,
platform_backend))
def PurgeUnpinnedMemory(self):
"""Purges the unpinned ashmem memory for the whole system.
This can be used to make memory measurements more stable. Requires root.
"""
if not self._can_access_protected_file_contents:
logging.warning('Cannot run purge_ashmem. Requires a rooted device.')
return
if not android_prebuilt_profiler_helper.InstallOnDevice(
self._device, 'purge_ashmem'):
raise Exception('Error installing purge_ashmem.')
output = self._device.RunShellCommand(
android_prebuilt_profiler_helper.GetDevicePath('purge_ashmem'),
check_return=True)
for l in output:
logging.info(l)
def __init__(self, browser_backend, platform_backend, output_path, state):
super(PerfProfiler, self).__init__(
browser_backend, platform_backend, output_path, state)
process_output_file_map = self._GetProcessOutputFileMap()
self._process_profilers = []
if platform_backend.GetOSName() == 'android':
android_prebuilt_profiler_helper.InstallOnDevice(
browser_backend.adb.Adb(), 'perf')
# Make sure kernel pointers are not hidden.
browser_backend.adb.Adb().SetProtectedFileContents(
'/proc/sys/kernel/kptr_restrict', '0')
for pid, output_file in process_output_file_map.iteritems():
if 'zygote' in output_file:
continue
self._process_profilers.append(
_SingleProcessPerfProfiler(
pid, output_file, browser_backend, platform_backend))
def PurgeUnpinnedMemory(self):
"""Purges the unpinned ashmem memory for the whole system.
This can be used to make memory measurements more stable. Requires root.
"""
if not self._can_access_protected_file_contents:
logging.warning(
'Cannot run purge_ashmem. Requires a rooted device.')
return
if not android_prebuilt_profiler_helper.InstallOnDevice(
self._device, 'purge_ashmem'):
raise Exception('Error installing purge_ashmem.')
(status,
output) = self._device.old_interface.GetAndroidToolStatusAndOutput(
android_prebuilt_profiler_helper.GetDevicePath('purge_ashmem'),
log_result=True)
if status != 0:
raise Exception('Error while purging ashmem: ' + '\n'.join(output))
