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| 1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
| 3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
| 4 | 4 |
| 5 import logging | 5 import logging |
| 6 import os | 6 import os |
| 7 import signal | 7 import signal |
| 8 import subprocess | 8 import subprocess |
| 9 import sys | 9 import sys |
| 10 import tempfile | 10 import tempfile |
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| 40 # Record raw samples to get CPU information. | 40 # Record raw samples to get CPU information. |
| 41 '--raw-samples', | 41 '--raw-samples', |
| 42 # Increase sampling frequency for better coverage. | 42 # Increase sampling frequency for better coverage. |
| 43 '--freq', '2000', | 43 '--freq', '2000', |
| 44 ] | 44 ] |
| 45 | 45 |
| 46 | 46 |
| 47 class _PerfProfiler(object): | 47 class _PerfProfiler(object): |
| 48 def __init__(self, device, perf_binary, categories): | 48 def __init__(self, device, perf_binary, categories): |
| 49 self._device = device | 49 self._device = device |
| 50 self._output_file = android_commands.DeviceTempFile( | 50 self._output_file = device_temp_file.DeviceTempFile( |
|
Sami
2015/05/13 12:58:51
Missing import?
jbudorick
2015/05/13 21:49:29
Done.
| |
| 51 self._device.old_interface, prefix='perf_output') | 51 self._device.adb, prefix='perf_output') |
| 52 self._log_file = tempfile.TemporaryFile() | 52 self._log_file = tempfile.TemporaryFile() |
| 53 | 53 |
| 54 # TODO(jbudorick) Look at providing a way to unhandroll this once the | 54 # TODO(jbudorick) Look at providing a way to unhandroll this once the |
| 55 # adb rewrite has fully landed. | 55 # adb rewrite has fully landed. |
| 56 device_param = (['-s', str(self._device)] if str(self._device) else []) | 56 device_param = (['-s', str(self._device)] if str(self._device) else []) |
| 57 cmd = ['adb'] + device_param + \ | 57 cmd = ['adb'] + device_param + \ |
| 58 ['shell', perf_binary, 'record', | 58 ['shell', perf_binary, 'record', |
| 59 '--output', self._output_file.name] + _PERF_OPTIONS | 59 '--output', self._output_file.name] + _PERF_OPTIONS |
| 60 if categories: | 60 if categories: |
| 61 cmd += ['--event', ','.join(categories)] | 61 cmd += ['--event', ','.join(categories)] |
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| 179 open(json_file_name, 'w') as json_file: | 179 open(json_file_name, 'w') as json_file: |
| 180 cmd = [perfhost_path, 'script', '-s', perf_script_path, '-i', | 180 cmd = [perfhost_path, 'script', '-s', perf_script_path, '-i', |
| 181 perf_profile, '--symfs', symfs_dir, '--kallsyms', kallsyms] | 181 perf_profile, '--symfs', symfs_dir, '--kallsyms', kallsyms] |
| 182 if subprocess.call(cmd, stdout=json_file, stderr=dev_null): | 182 if subprocess.call(cmd, stdout=json_file, stderr=dev_null): |
| 183 logging.warning('Perf data to JSON conversion failed. The result will ' | 183 logging.warning('Perf data to JSON conversion failed. The result will ' |
| 184 'not contain any perf samples. You can still view the ' | 184 'not contain any perf samples. You can still view the ' |
| 185 'perf data manually as shown above.') | 185 'perf data manually as shown above.') |
| 186 return None | 186 return None |
| 187 | 187 |
| 188 return json_file_name | 188 return json_file_name |
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