| # Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import os |
| import time |
| |
| from autotest_lib.client.bin import site_utils, test, utils |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib import file_utils |
| from autotest_lib.client.common_lib.cros import chrome |
| from autotest_lib.client.cros import power_status, power_utils |
| from autotest_lib.client.cros import service_stopper |
| from autotest_lib.client.cros.video import histogram_verifier |
| from autotest_lib.client.cros.video import constants |
| |
| |
| DISABLE_ACCELERATED_VIDEO_DECODE_BROWSER_ARGS = [ |
| '--disable-accelerated-video-decode'] |
| DOWNLOAD_BASE = 'http://commondatastorage.googleapis.com/chromiumos-test-assets-public/' |
| |
| PLAYBACK_WITH_HW_ACCELERATION = 'playback_with_hw_acceleration' |
| PLAYBACK_WITHOUT_HW_ACCELERATION = 'playback_without_hw_acceleration' |
| |
| # Measurement duration in seconds. |
| MEASUREMENT_DURATION = 30 |
| # Time to exclude from calculation after playing a video [seconds]. |
| STABILIZATION_DURATION = 10 |
| |
| # List of thermal throttling services that should be disabled. |
| # - temp_metrics for link. |
| # - thermal for daisy, snow, pit etc. |
| THERMAL_SERVICES = ['temp_metrics', 'thermal'] |
| |
| # Time in seconds to wait for cpu idle until giveup. |
| WAIT_FOR_IDLE_CPU_TIMEOUT = 60.0 |
| # Maximum percent of cpu usage considered as idle. |
| CPU_IDLE_USAGE = 0.1 |
| |
| CPU_USAGE_DESCRIPTION = 'video_cpu_usage_' |
| DROPPED_FRAMES_DESCRIPTION = 'video_dropped_frames_' |
| DROPPED_FRAMES_PERCENT_DESCRIPTION = 'video_dropped_frames_percent_' |
| POWER_DESCRIPTION = 'video_mean_energy_rate_' |
| |
| # Minimum battery charge percentage to run the test |
| BATTERY_INITIAL_CHARGED_MIN = 10 |
| |
| |
| class video_PlaybackPerf(test.test): |
| """ |
| The test outputs the cpu usage, the dropped frame count and the power |
| consumption for video playback to performance dashboard. |
| """ |
| version = 1 |
| arc_mode = None |
| |
| |
| def initialize(self): |
| self._service_stopper = None |
| self._original_governors = None |
| self._backlight = None |
| |
| |
| def start_playback(self, cr, local_path): |
| """ |
| Opens the video and plays it. |
| |
| @param cr: Autotest Chrome instance. |
| @param local_path: path to the local video file to play. |
| """ |
| cr.browser.platform.SetHTTPServerDirectories(self.bindir) |
| |
| tab = cr.browser.tabs[0] |
| tab.Navigate(cr.browser.platform.http_server.UrlOf(local_path)) |
| tab.WaitForDocumentReadyStateToBeComplete() |
| tab.EvaluateJavaScript("document.getElementsByTagName('video')[0]." |
| "loop=true") |
| |
| |
| def run_once(self, video_name, video_description, power_test=False, |
| arc_mode=None): |
| """ |
| Runs the video_PlaybackPerf test. |
| |
| @param video_name: the name of video to play in the DOWNLOAD_BASE |
| @param video_description: a string describes the video to play which |
| will be part of entry name in dashboard. |
| @param power_test: True if this is a power test and it would only run |
| the power test. If False, it would run the cpu usage test and |
| the dropped frame count test. |
| @param arc_mode: if 'enabled', run the test with Android enabled. |
| """ |
| # Download test video. |
| url = DOWNLOAD_BASE + video_name |
| local_path = os.path.join(self.bindir, os.path.basename(video_name)) |
| logging.info("Downloading %s to %s", url, local_path); |
| file_utils.download_file(url, local_path) |
| self.arc_mode = arc_mode |
| |
| if not power_test: |
| # Run the video playback dropped frame tests. |
| keyvals = self.test_dropped_frames(local_path) |
| |
| # Every dictionary value is a tuple. The first element of the tuple |
| # is dropped frames. The second is dropped frames percent. |
| keyvals_dropped_frames = {k: v[0] for k, v in keyvals.iteritems()} |
| keyvals_dropped_frames_percent = { |
| k: v[1] for k, v in keyvals.iteritems()} |
| |
| self.log_result(keyvals_dropped_frames, DROPPED_FRAMES_DESCRIPTION + |
| video_description, 'frames') |
| self.log_result(keyvals_dropped_frames_percent, |
| DROPPED_FRAMES_PERCENT_DESCRIPTION + |
| video_description, 'percent') |
| |
| # Run the video playback cpu usage tests. |
| keyvals = self.test_cpu_usage(local_path) |
| self.log_result(keyvals, CPU_USAGE_DESCRIPTION + video_description, |
| 'percent') |
| else: |
| keyvals = self.test_power(local_path) |
| self.log_result(keyvals, POWER_DESCRIPTION + video_description, 'W') |
| |
| |
| def test_dropped_frames(self, local_path): |
| """ |
| Runs the video dropped frame test. |
| |
| @param local_path: the path to the video file. |
| |
| @return a dictionary that contains the test result. |
| """ |
| def get_dropped_frames(cr): |
| time.sleep(MEASUREMENT_DURATION) |
| tab = cr.browser.tabs[0] |
| decoded_frame_count = tab.EvaluateJavaScript( |
| "document.getElementsByTagName" |
| "('video')[0].webkitDecodedFrameCount") |
| dropped_frame_count = tab.EvaluateJavaScript( |
| "document.getElementsByTagName" |
| "('video')[0].webkitDroppedFrameCount") |
| if decoded_frame_count != 0: |
| dropped_frame_percent = \ |
| 100.0 * dropped_frame_count / decoded_frame_count |
| else: |
| logging.error("No frame is decoded. Set drop percent to 100.") |
| dropped_frame_percent = 100.0 |
| logging.info("Decoded frames=%d, dropped frames=%d, percent=%f", |
| decoded_frame_count, |
| dropped_frame_count, |
| dropped_frame_percent) |
| return (dropped_frame_count, dropped_frame_percent) |
| return self.test_playback(local_path, get_dropped_frames) |
| |
| |
| def test_cpu_usage(self, local_path): |
| """ |
| Runs the video cpu usage test. |
| |
| @param local_path: the path to the video file. |
| |
| @return a dictionary that contains the test result. |
| """ |
| def get_cpu_usage(cr): |
| time.sleep(STABILIZATION_DURATION) |
| cpu_usage_start = site_utils.get_cpu_usage() |
| time.sleep(MEASUREMENT_DURATION) |
| cpu_usage_end = site_utils.get_cpu_usage() |
| return site_utils.compute_active_cpu_time(cpu_usage_start, |
| cpu_usage_end) * 100 |
| if not utils.wait_for_idle_cpu(WAIT_FOR_IDLE_CPU_TIMEOUT, |
| CPU_IDLE_USAGE): |
| raise error.TestError('Could not get idle CPU.') |
| if not utils.wait_for_cool_machine(): |
| raise error.TestError('Could not get cold machine.') |
| # Stop the thermal service that may change the cpu frequency. |
| self._service_stopper = service_stopper.ServiceStopper(THERMAL_SERVICES) |
| self._service_stopper.stop_services() |
| # Set the scaling governor to performance mode to set the cpu to the |
| # highest frequency available. |
| self._original_governors = utils.set_high_performance_mode() |
| return self.test_playback(local_path, get_cpu_usage) |
| |
| |
| def test_power(self, local_path): |
| """ |
| Runs the video power consumption test. |
| |
| @param local_path: the path to the video file. |
| |
| @return a dictionary that contains the test result. |
| """ |
| |
| self._backlight = power_utils.Backlight() |
| self._backlight.set_default() |
| |
| self._service_stopper = service_stopper.ServiceStopper( |
| service_stopper.ServiceStopper.POWER_DRAW_SERVICES) |
| self._service_stopper.stop_services() |
| |
| self._power_status = power_status.get_status() |
| # Verify that we are running on battery and the battery is sufficiently |
| # charged. |
| self._power_status.assert_battery_state(BATTERY_INITIAL_CHARGED_MIN) |
| |
| measurements = [power_status.SystemPower( |
| self._power_status.battery_path)] |
| |
| def get_power(cr): |
| power_logger = power_status.PowerLogger(measurements) |
| power_logger.start() |
| time.sleep(STABILIZATION_DURATION) |
| start_time = time.time() |
| time.sleep(MEASUREMENT_DURATION) |
| power_logger.checkpoint('result', start_time) |
| keyval = power_logger.calc() |
| return keyval['result_' + measurements[0].domain + '_pwr'] |
| |
| return self.test_playback(local_path, get_power) |
| |
| |
| def test_playback(self, local_path, gather_result): |
| """ |
| Runs the video playback test with and without hardware acceleration. |
| |
| @param local_path: the path to the video file. |
| @param gather_result: a function to run and return the test result |
| after chrome opens. The input parameter of the funciton is |
| Autotest chrome instance. |
| |
| @return a dictionary that contains test the result. |
| """ |
| keyvals = {} |
| |
| with chrome.Chrome(arc_mode=self.arc_mode) as cr: |
| # Open the video playback page and start playing. |
| self.start_playback(cr, local_path) |
| result = gather_result(cr) |
| |
| # Check if decode is hardware accelerated. |
| if histogram_verifier.is_bucket_present( |
| cr, |
| constants.MEDIA_GVD_INIT_STATUS, |
| constants.MEDIA_GVD_BUCKET): |
| keyvals[PLAYBACK_WITH_HW_ACCELERATION] = result |
| else: |
| logging.info("Can not use hardware decoding.") |
| keyvals[PLAYBACK_WITHOUT_HW_ACCELERATION] = result |
| return keyvals |
| |
| # Start chrome with disabled video hardware decode flag. |
| with chrome.Chrome(extra_browser_args= |
| DISABLE_ACCELERATED_VIDEO_DECODE_BROWSER_ARGS, |
| arc_mode=self.arc_mode) as cr: |
| # Open the video playback page and start playing. |
| self.start_playback(cr, local_path) |
| result = gather_result(cr) |
| |
| # Make sure decode is not hardware accelerated. |
| if histogram_verifier.is_bucket_present( |
| cr, |
| constants.MEDIA_GVD_INIT_STATUS, |
| constants.MEDIA_GVD_BUCKET): |
| raise error.TestError( |
| 'Video decode acceleration should not be working.') |
| keyvals[PLAYBACK_WITHOUT_HW_ACCELERATION] = result |
| |
| return keyvals |
| |
| |
| def log_result(self, keyvals, description, units): |
| """ |
| Logs the test result output to the performance dashboard. |
| |
| @param keyvals: a dictionary that contains results returned by |
| test_playback. |
| @param description: a string that describes the video and test result |
| and it will be part of the entry name in the dashboard. |
| @param units: the units of test result. |
| """ |
| result_with_hw = keyvals.get(PLAYBACK_WITH_HW_ACCELERATION) |
| if result_with_hw is not None: |
| self.output_perf_value( |
| description= 'hw_' + description, value=result_with_hw, |
| units=units, higher_is_better=False) |
| |
| result_without_hw = keyvals[PLAYBACK_WITHOUT_HW_ACCELERATION] |
| self.output_perf_value( |
| description= 'sw_' + description, value=result_without_hw, |
| units=units, higher_is_better=False) |
| |
| |
| def cleanup(self): |
| # cleanup() is run by common_lib/test.py. |
| if self._backlight: |
| self._backlight.restore() |
| if self._service_stopper: |
| self._service_stopper.restore_services() |
| if self._original_governors: |
| utils.restore_scaling_governor_states(self._original_governors) |
| |
| super(video_PlaybackPerf, self).cleanup() |