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 __init__(self, device, platform_backend):
super(DS2784PowerMonitor, self).__init__(platform_backend)
self._device = device
self._device_battery = battery_utils.BatteryUtils(self._device)
self._powermonitor_process_port = None
self._file_poller_binary = android_prebuilt_profiler_helper.GetDevicePath(
'file_poller')
def __init__(self, pid, output_file, browser_backend, platform_backend):
self._pid = pid
self._browser_backend = browser_backend
self._platform_backend = platform_backend
self._output_file = output_file
self._tmp_output_file = tempfile.NamedTemporaryFile('w', 0)
self._is_android = platform_backend.GetOSName() == 'android'
cmd_prefix = []
if self._is_android:
perf_binary = android_prebuilt_profiler_helper.GetDevicePath(
'perf')
cmd_prefix = [
'adb', '-s',
browser_backend.adb.device(), 'shell', perf_binary
]
output_file = os.path.join('/sdcard', 'perf_profiles',
os.path.basename(output_file))
self._device_output_file = output_file
browser_backend.adb.RunShellCommand(
'mkdir -p ' + os.path.dirname(self._device_output_file))
else:
cmd_prefix = ['perf']
self._proc = subprocess.Popen(cmd_prefix + [
'record', '--call-graph', '--pid',
str(pid), '--output', output_file
],
stdout=self._tmp_output_file,
stderr=subprocess.STDOUT)
def __init__(self, adb, output_path):
self._adb = adb
self._output_path = output_path
self._adb.RunShellCommand('mkdir -p ' +
os.path.dirname(self._DEVICE_DUMP_FILE))
self._proc = subprocess.Popen(
['adb', '-s', self._adb.device(),
'shell', android_prebuilt_profiler_helper.GetDevicePath('tcpdump')] +
_TCP_DUMP_BASE_OPTS +
[self._DEVICE_DUMP_FILE])
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 CollectProfile(self):
tcpdump_pid = self._adb.ExtractPid('tcpdump')
if not tcpdump_pid or not tcpdump_pid[0]:
raise Exception('Unable to find TCPDump. Check your device is rooted '
'and tcpdump is installed at ' +
android_prebuilt_profiler_helper.GetDevicePath('tcpdump'))
self._adb.RunShellCommand('kill -term ' + tcpdump_pid[0])
self._proc.terminate()
host_dump = os.path.join(self._output_path,
os.path.basename(self._DEVICE_DUMP_FILE))
self._adb.Adb().Adb().Pull(self._DEVICE_DUMP_FILE, host_dump)
print 'TCP dump available at: %s ' % host_dump
print 'Use Wireshark to open it.'
return host_dump
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 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))
def __init__(self, device):
super(DS2784PowerMonitor, self).__init__()
self._device = device
self._powermonitor_process_port = None
self._file_poller_binary = android_prebuilt_profiler_helper.GetDevicePath(
'file_poller')
