def run_once(self, idle_time=120, sleep=10): with chrome.Chrome(): self._backlight = power_utils.Backlight() self._backlight.set_default() t0 = time.time() self._start_time = t0 self._psr = power_utils.DisplayPanelSelfRefresh(init_time=t0) self.status = power_status.get_status() self._stats = power_status.StatoMatic() measurements = [] if not self.status.on_ac(): measurements.append( power_status.SystemPower(self.status.battery_path)) if power_utils.has_rapl_support(): measurements += power_rapl.create_rapl() self._plog = power_status.PowerLogger(measurements, seconds_period=sleep) self._tlog = power_status.TempLogger([], seconds_period=sleep) self._plog.start() self._tlog.start() for _ in xrange(0, idle_time, sleep): time.sleep(sleep) self.status.refresh() self.status.refresh() self._plog.checkpoint('', self._start_time) self._tlog.checkpoint('', self._start_time) self._psr.refresh()
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 run_once(self): if not self._check_cpu_type(): raise error.TestNAError('Unsupported CPU') status = power_status.get_status() if status.on_ac(): logging.info('AC Power is online') self._on_ac = True else: logging.info('AC Power is offline') self._on_ac = False failures = '' fail_count = self._verify_wifi_power_settings() if fail_count: failures += 'wifi_failures(%d) ' % fail_count fail_count = self._verify_usb_power_settings() if fail_count: failures += 'usb_failures(%d) ' % fail_count fail_count = self._verify_filesystem_power_settings() if fail_count: failures += 'filesystem_failures(%d) ' % fail_count if failures: raise error.TestFail(failures)
def run_once(self): cpu_arch = power_utils.get_x86_cpu_arch() if not cpu_arch: raise error.TestNAError('Unsupported CPU') self._cpu_type = 'Atom' if cpu_arch is not 'Atom': self._cpu_type = 'Non-Atom' self._registers = power_utils.Registers() status = power_status.get_status() if status.on_ac(): logging.info('AC Power is online') self._on_ac = True else: logging.info('AC Power is offline') self._on_ac = False failures = '' for testname in SUBTESTS: logging.info("SUBTEST = %s", testname) func = getattr(self, "_verify_%s_power_settings" % testname) fail_count = func() if fail_count: failures += '%s_failures(%d) ' % (testname, fail_count) if failures: raise error.TestFail(failures)
def initialize(self): super(hardware_MultiReaderPowerConsumption, self).initialize() # Make sure we're not on AC power self.status = power_status.get_status() if self.status.on_ac(): raise error.TestNAError( 'This test needs to be run with the AC power offline')
def initialize(self, **kwargs): """Set up local variables and ensure device is on AC power.""" self._initialize_test_constants() self._power_status = power_status.get_status() if not self._power_status.on_ac(): raise error.TestNAError('Test must be run with DUT on AC power.') self._backlight = power_utils.Backlight() super(policy_PowerManagementIdleSettings, self).initialize(**kwargs)
def initialize(self, **kwargs): """Set up local variables and ensure sufficient battery charge.""" self._power_status = power_status.get_status() if not self._power_status.on_ac(): # Ensure that the battery has sufficient minimum charge. self._power_status.assert_battery_state(self.PERCENT_CHARGE_MIN) logging.info('Device power type is "%s"', self._power_type) super(policy_ChromeOsLockOnIdleSuspend, self).initialize(**kwargs)
def initialize(self, ac_ok=False): """Initialize test. Args: ac_ok: boolean to allow running on AC """ # Objects that need to be taken care of in cleanup() are initialized # here to None. Otherwise we run the risk of AttributeError raised in # cleanup() masking a real error that caused the test to fail during # initialize() before those variables were assigned. self._backlight = None self._tmp_keyvals = {} self._services = service_stopper.ServiceStopper( service_stopper.ServiceStopper.POWER_DRAW_SERVICES) self._services.stop_services() # Time to exclude from calculation after firing a task [seconds] self._stabilization_seconds = 5 self._power_status = power_status.get_status() self._tmp_keyvals['b_on_ac'] = self._power_status.on_ac() if not ac_ok: # Verify that we are running on battery and the battery is # sufficiently charged self._power_status.assert_battery_state(30) # Find the battery capacity to report expected battery life in hours batinfo = self._power_status.battery[0] self.energy_full_design = batinfo.energy_full_design logging.info("energy_full_design = %0.3f Wh", self.energy_full_design) # Local data and web server settings. Tarballs with traditional names # like *.tgz don't get copied to the image by ebuilds (see # AUTOTEST_FILE_MASK in autotest-chrome ebuild). self._static_sub_dir = 'static_sites' utils.extract_tarball_to_dir( 'static_sites.tgz.keep', os.path.join(self.bindir, self._static_sub_dir)) self._media_dir = '/home/chronos/user/Downloads/' self._httpd_port = 8000 self._url_base = 'http://localhost:%s/' % self._httpd_port self._test_server = httpd.HTTPListener(self._httpd_port, docroot=self.bindir) # initialize various interesting power related stats self._statomatic = power_status.StatoMatic() self._test_server.run() logging.info('initialize() finished')
def initialize(self): if not power_utils.has_battery(): raise error.TestNAError('DUT has no battery. Test Skipped') self.status = power_status.get_status() if not self.status.on_ac(): raise error.TestNAError( 'This test needs to be run with the AC power online') self._services = service_stopper.ServiceStopper( service_stopper.ServiceStopper.POWER_DRAW_SERVICES + ['ui']) self._services.stop_services()
def __enter__(self): 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() status = power_status.get_status() # Verify that we are running on battery and the battery is sufficiently # charged. status.assert_battery_state(BATTERY_INITIAL_CHARGED_MIN) self._system_power = power_status.SystemPower(status.battery_path) self._power_logger = power_status.PowerLogger([self._system_power]) return self
def run_power_test(self, browser, test_url, ac_ok): """Runs the webgl power consumption test and reports the perf results. @param browser: The Browser object to run the test with. @param test_url: The URL to the aquarium test site. @param ac_ok: Boolean on whether its ok to have AC power supplied. """ 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() if not ac_ok: 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(): 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() logging.info('Power output %s', keyval) return keyval['result_' + measurements[0].domain + '_pwr'] self.run_fish_test(browser, test_url, 1000, perf_log=False) if not ac_ok: energy_rate = get_power() # This is a power specific test so we are not capturing # avg_fps and avg_render_time in this test. self.perf_keyval[POWER_DESCRIPTION] = energy_rate self.output_perf_value(description=POWER_DESCRIPTION, value=energy_rate, units='W', higher_is_better=False)
def run_once(self, seconds=200, sleep=10): status = power_status.get_status() if status.on_ac(): logging.warning('AC power is online -- ' 'unable to monitor energy consumption') return # If powerd is running, stop it, so that it cannot interfere with the # backlight adjustments in this test. if utils.system_output('status powerd').find('start/running') != -1: powerd_running = True utils.system_output('stop powerd') else: powerd_running = False start_energy = status.battery[0].energy self._tlog = power_status.TempLogger([], seconds_period=sleep) self._tlog.start() # Let the test run for i in range(0, seconds, sleep): time.sleep(sleep) status.refresh() status.refresh() end_energy = status.battery[0].energy consumed_energy = start_energy - end_energy energy_rate = consumed_energy * 60 * 60 / seconds keyvals = self._tlog.calc() keyvals['wh_energy_full'] = status.battery[0].energy_full keyvals['wh_start_energy'] = start_energy keyvals['wh_end_energy'] = end_energy keyvals['wh_consumed_energy'] = consumed_energy keyvals['w_average_energy_rate'] = energy_rate keyvals['w_end_energy_rate'] = status.battery[0].energy_rate self.write_perf_keyval(keyvals) # Restore powerd if it was originally running. if powerd_running: utils.system_output('start powerd')
def run_power_test(self, audio_type): """ Captures power usage and reports it to the perf dashboard. @param audio_type: audio format label to attach with perf keyval. """ 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(): 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() logging.info('Power output %s', keyval) return keyval['result_' + measurements[0].domain + '_pwr'] energy_rate = get_power() perf_keyval = {} perf_keyval[POWER_DESCRIPTION + audio_type] = energy_rate self.output_perf_value(description=POWER_DESCRIPTION + audio_type, value=energy_rate, units='W', higher_is_better=False) self.write_perf_keyval(perf_keyval)
def run_once(self): status = power_status.get_status() statomatic = power_status.StatoMatic() meas = [power_status.SystemPower(status.battery_path)] plog = power_status.PowerLogger(meas, seconds_period=1) tlog = power_status.TempLogger(None, seconds_period=1) plog.start() tlog.start() time.sleep(2) logging.info("battery_energy: %f" % status.battery[0].energy) logging.info("linepower_online: %s" % status.on_ac()) keyvals = plog.calc() keyvals.update(tlog.calc()) keyvals.update(statomatic.publish()) for k in sorted(keyvals.keys()): logging.info("%s: %s" , k, keyvals[k]) plog.save_results(self.resultsdir) tlog.save_results(self.resultsdir)
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() # We expect the DUT is powered by battery now. But this is not always # true due to other bugs. Disable this test temporarily as workaround. # TODO(kcwu): remove this workaround after AC control is stable # crbug.com/723968 if self._power_status.on_ac(): logging.warning('Still powered by AC. Skip this test') return {} # Verify that 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 run_once(self, delay=60, seconds=10, tries=20): self._backlight = power_utils.Backlight() # disable screen blanking. Stopping screen-locker isn't # synchronous :(. Add a sleep for now, till powerd comes around # and fixes all this for us. # TODO(davidjames): Power manager should support this feature directly time.sleep(5) graphics_utils.screen_disable_blanking() status = power_status.get_status() status.assert_battery_state(5) max_brightness = self._backlight.get_max_level() if max_brightness < 4: raise error.TestFail('Must have at least 5 backlight levels') sysfs_max = self._get_highest_sysfs_max_brightness() if max_brightness != sysfs_max: raise error.TestFail(('Max brightness %d is not the highest ' + 'possible |max_brightness|, which is %d') % (max_brightness, sysfs_max)) keyvals = {} rates = [] levels = [0, 50, 100] for i in levels: self._backlight.set_percent(i) time.sleep(delay) this_rate = [] for _ in range(tries): time.sleep(seconds) status.refresh() this_rate.append(status.battery[0].energy_rate) rate = min(this_rate) keyvals['w_bl_%d_rate' % i] = rate rates.append(rate) self.write_perf_keyval(keyvals) for i in range(1, len(levels)): if rates[i] <= rates[i - 1]: raise error.TestFail('Turning up the backlight ' \ 'should increase energy consumption')
def initialize(self, percent_initial_charge_min=10): """ Setup local variables and init the fake DM server @param percent_initial_charge_min: Minimum percentage of battery required for the test to run. """ # Username and password for the fake dm server can be anything # they are not used to authenticate against GAIA. self.username = '******' self.password = '******' self._power_status = power_status.get_status() if not self._power_status.on_ac(): # Ensure that the battery has some charge. self._power_status.assert_battery_state(percent_initial_charge_min) logging.info("Device power type is %s", self._power_type) self.fake_dm_server = enterprise_fake_dmserver.FakeDMServer( self.srcdir) self.fake_dm_server.start(self.tmpdir, self.debugdir)
def run_once(self, power_on=True): status = power_status.get_status() if power_on and not status.on_ac(): raise error.TestError('AC line status is not on but should be') elif not power_on and status.on_ac(): raise error.TestError('AC line status is on but should not be')
def initialize(self, percent_initial_charge_min=None, check_network=True, loop_time=3600, loop_count=1, should_scroll='true', should_scroll_up='true', scroll_loop='false', scroll_interval_ms='10000', scroll_by_pixels='600', test_low_batt_p=3, verbose=True, force_wifi=False, wifi_ap='', wifi_sec='none', wifi_pw='', wifi_timeout=60, tasks='', volume_level=10, mic_gain=10, low_batt_margin_p=2, ac_ok=False, log_mem_bandwidth=False, gaia_login=True): """ percent_initial_charge_min: min battery charge at start of test check_network: check that Ethernet interface is not running loop_time: length of time to run the test for in each loop loop_count: number of times to loop the test for should_scroll: should the extension scroll pages should_scroll_up: should scroll in up direction scroll_loop: continue scrolling indefinitely scroll_interval_ms: how often to scoll scroll_by_pixels: number of pixels to scroll each time test_low_batt_p: percent battery at which test should stop verbose: add more logging information force_wifi: should we force to test to run on wifi wifi_ap: the name (ssid) of the wifi access point wifi_sec: the type of security for the wifi ap wifi_pw: password for the wifi ap wifi_timeout: The timeout for wifi configuration volume_level: percent audio volume level mic_gain: percent audio microphone gain level low_batt_margin_p: percent low battery margin to be added to sys_low_batt_p to guarantee test completes prior to powerd shutdown ac_ok: boolean to allow running on AC log_mem_bandwidth: boolean to log memory bandwidth during the test gaia_login: boolean of whether real GAIA login should be attempted. """ self._backlight = None self._services = None self._browser = None self._loop_time = loop_time self._loop_count = loop_count self._mseconds = self._loop_time * 1000 self._verbose = verbose self._sys_low_batt_p = 0. self._sys_low_batt_s = 0. self._test_low_batt_p = test_low_batt_p self._should_scroll = should_scroll self._should_scroll_up = should_scroll_up self._scroll_loop = scroll_loop self._scroll_interval_ms = scroll_interval_ms self._scroll_by_pixels = scroll_by_pixels self._tmp_keyvals = {} self._power_status = None self._force_wifi = force_wifi self._testServer = None self._tasks = tasks.replace(' ', '') self._backchannel = None self._shill_proxy = None self._volume_level = volume_level self._mic_gain = mic_gain self._ac_ok = ac_ok self._log_mem_bandwidth = log_mem_bandwidth self._wait_time = 60 self._stats = collections.defaultdict(list) self._gaia_login = gaia_login if not power_utils.has_battery(): rsp = "Device designed without battery. Skipping test." raise error.TestNAError(rsp) self._power_status = power_status.get_status() self._tmp_keyvals['b_on_ac'] = self._power_status.on_ac() with tempfile.NamedTemporaryFile() as pltp: file_utils.download_file(self._pltp_url, pltp.name) self._password = pltp.read().rstrip() if not ac_ok: self._power_status.assert_battery_state(percent_initial_charge_min) # If force wifi enabled, convert eth0 to backchannel and connect to the # specified WiFi AP. if self._force_wifi: sec_config = None # TODO(dbasehore): Fix this when we get a better way of figuring out # the wifi security configuration. if wifi_sec == 'rsn' or wifi_sec == 'wpa': sec_config = xmlrpc_security_types.WPAConfig( psk=wifi_pw, wpa_mode=xmlrpc_security_types.WPAConfig.MODE_PURE_WPA2, wpa2_ciphers=[xmlrpc_security_types.WPAConfig.CIPHER_CCMP]) wifi_config = xmlrpc_datatypes.AssociationParameters( ssid=wifi_ap, security_config=sec_config, configuration_timeout=wifi_timeout) # If backchannel is already running, don't run it again. self._backchannel = backchannel.Backchannel() if not self._backchannel.setup(): raise error.TestError('Could not setup Backchannel network.') self._shill_proxy = wifi_proxy.WifiProxy() self._shill_proxy.remove_all_wifi_entries() for i in xrange(1, 4): raw_output = self._shill_proxy.connect_to_wifi_network( wifi_config.ssid, wifi_config.security, wifi_config.security_parameters, wifi_config.save_credentials, station_type=wifi_config.station_type, hidden_network=wifi_config.is_hidden, discovery_timeout_seconds=wifi_config.discovery_timeout, association_timeout_seconds=wifi_config. association_timeout, configuration_timeout_seconds=wifi_config. configuration_timeout * i) result = xmlrpc_datatypes.AssociationResult. \ from_dbus_proxy_output(raw_output) if result.success: break logging.warn( 'wifi connect: disc:%d assoc:%d config:%d fail:%s', result.discovery_time, result.association_time, result.configuration_time, result.failure_reason) else: raise error.TestError('Could not connect to WiFi network.') else: # Find all wired ethernet interfaces. # TODO: combine this with code in network_DisableInterface, in a # common library somewhere. ifaces = [ nic.strip() for nic in os.listdir('/sys/class/net/') if ((not os.path.exists('/sys/class/net/' + nic + '/phy80211')) and nic.find('eth') != -1) ] logging.debug(str(ifaces)) for iface in ifaces: if check_network and self._is_network_iface_running(iface): raise error.TestError('Ethernet interface is active. ' + 'Please remove Ethernet cable') # record the max backlight level self._backlight = power_utils.Backlight() self._tmp_keyvals['level_backlight_max'] = \ self._backlight.get_max_level() self._services = service_stopper.ServiceStopper( service_stopper.ServiceStopper.POWER_DRAW_SERVICES) self._services.stop_services() # fix up file perms for the power test extension so that chrome # can access it os.system('chmod -R 755 %s' % self.bindir) # setup a HTTP Server to listen for status updates from the power # test extension self._testServer = httpd.HTTPListener(8001, docroot=self.bindir) self._testServer.run() # initialize various interesting power related stats self._statomatic = power_status.StatoMatic() self._power_status.refresh() help_output = utils.system_output('check_powerd_config --help') if 'low_battery_shutdown' in help_output: logging.info('Have low_battery_shutdown option') self._sys_low_batt_p = float( utils.system_output( 'check_powerd_config --low_battery_shutdown_percent')) self._sys_low_batt_s = int( utils.system_output( 'check_powerd_config --low_battery_shutdown_time')) else: # TODO(dchan) Once M57 in stable, remove this option and function. logging.info('No low_battery_shutdown option') (self._sys_low_batt_p, self._sys_low_batt_s) = \ self._get_sys_low_batt_values_from_log() if self._sys_low_batt_p and self._sys_low_batt_s: raise error.TestError( "Low battery percent and seconds are non-zero.") min_low_batt_p = min(self._sys_low_batt_p + low_batt_margin_p, 100) if self._sys_low_batt_p and (min_low_batt_p > self._test_low_batt_p): logging.warning( "test low battery threshold is below system " + "low battery requirement. Setting to %f", min_low_batt_p) self._test_low_batt_p = min_low_batt_p self._ah_charge_start = self._power_status.battery[0].charge_now self._wh_energy_start = self._power_status.battery[0].energy
def _get_current_energy_rate(self): return power_status.get_status().battery[0].energy_rate
def run_once(self): # Require that this test be run on battery with at least 5% charge status = power_status.get_status() status.assert_battery_state(5) prefs = { 'has_ambient_light_sensor': 0, 'ignore_external_policy': 1, 'plugged_dim_ms': 7200000, 'plugged_off_ms': 9000000, 'plugged_suspend_ms': 18000000, 'unplugged_dim_ms': 7200000, 'unplugged_off_ms': 9000000, 'unplugged_suspend_ms': 18000000 } self._pref_change = power_utils.PowerPrefChanger(prefs) keyvals = {} num_errors = 0 # These are the expected ratios of energy rate between max, min, and off # (zero) brightness levels. e.g. when changing from max to min, the # energy rate must become <= (max_energy_rate * max_to_min_factor). max_to_min_factor = \ 1.0 - self._energy_rate_change_threshold_percent / 100.0 min_to_off_factor = \ 1.0 - self._energy_rate_change_threshold_percent / 100.0 off_to_max_factor = 1.0 / (max_to_min_factor * min_to_off_factor) # Determine the number of outputs that are on. starting_num_outputs_on = get_num_outputs_on() if starting_num_outputs_on == 0: raise error.TestFail('At least one display output must be on.') keyvals['starting_num_outputs_on'] = starting_num_outputs_on self._backlight = power_utils.Backlight() keyvals['max_brightness'] = self._backlight.get_max_level() if keyvals['max_brightness'] <= self._min_num_steps: raise error.TestFail('Must have at least %d backlight levels' % (self._min_num_steps + 1)) keyvals['initial_brightness'] = self._backlight.get_level() self._wait_for_stable_energy_rate() keyvals['initial_power_w'] = self._get_current_energy_rate() self._backlight_controller = power_utils.BacklightController() self._backlight_controller.set_brightness_to_max() current_brightness = \ utils.wait_for_value(self._backlight.get_level, max_threshold=keyvals['max_brightness']) if current_brightness != keyvals['max_brightness']: num_errors += 1 logging.error(('Failed to increase brightness to max, ' + \ 'brightness is %d.') % current_brightness) else: self._wait_for_stable_energy_rate() keyvals['max_brightness_power_w'] = self._get_current_energy_rate() # Set brightness to minimum without going to zero. # Note that we don't know what the minimum brightness is, so just set # min_threshold=0 to use the timeout to wait for the brightness to # settle. self._backlight_controller.set_brightness_to_min() current_brightness = utils.wait_for_value( self._backlight.get_level, min_threshold=(keyvals['max_brightness'] / 2 - 1)) if current_brightness >= keyvals['max_brightness'] / 2 or \ current_brightness == 0: num_errors += 1 logging.error('Brightness is not at minimum non-zero level: %d' % current_brightness) else: self._wait_for_stable_energy_rate() keyvals['min_brightness_power_w'] = self._get_current_energy_rate() # Turn off the screen by decreasing brightness one more time with # allow_off=True. self._backlight_controller.decrease_brightness(True) current_brightness = utils.wait_for_value(self._backlight.get_level, min_threshold=0) if current_brightness != 0: num_errors += 1 logging.error('Brightness is %d, expecting 0.' % current_brightness) # Wait for screen to turn off. num_outputs_on = utils.wait_for_value( get_num_outputs_on, min_threshold=(starting_num_outputs_on - 1)) keyvals['outputs_on_after_screen_off'] = num_outputs_on if num_outputs_on >= starting_num_outputs_on: num_errors += 1 logging.error('At least one display must have been turned off. ' + \ 'Number of displays on: %s' % num_outputs_on) else: self._wait_for_stable_energy_rate() keyvals['screen_off_power_w'] = self._get_current_energy_rate() # Set brightness to max. self._backlight_controller.set_brightness_to_max() current_brightness = utils.wait_for_value( self._backlight.get_level, max_threshold=keyvals['max_brightness']) if current_brightness != keyvals['max_brightness']: num_errors += 1 logging.error(('Failed to increase brightness to max, ' + \ 'brightness is %d.') % current_brightness) # Verify that the same number of outputs are on as before. num_outputs_on = get_num_outputs_on() keyvals['outputs_on_at_end'] = num_outputs_on if num_outputs_on != starting_num_outputs_on: num_errors += 1 logging.error(('Number of displays turned on should be same as ' + \ 'at start. Number of displays on: %s') % num_outputs_on) self._wait_for_stable_energy_rate() keyvals['final_power_w'] = self._get_current_energy_rate() # Energy rate must have changed significantly between transitions. if 'max_brightness_power_w' in keyvals and \ 'min_brightness_power_w' in keyvals and \ keyvals['min_brightness_power_w'] >= \ keyvals['max_brightness_power_w'] * max_to_min_factor: num_errors += 1 logging.error('Power draw did not decrease enough when ' + \ 'brightness was decreased from max to min.') if 'screen_off_power_w' in keyvals and \ 'min_brightness_power_w' in keyvals and \ keyvals['screen_off_power_w'] >= \ keyvals['min_brightness_power_w'] * min_to_off_factor: num_errors += 1 logging.error('Power draw did not decrease enough when screen ' + \ 'was turned off.') if num_outputs_on == starting_num_outputs_on and \ 'screen_off_power_w' in keyvals and \ keyvals['final_power_w'] <= \ keyvals['screen_off_power_w'] * off_to_max_factor: num_errors += 1 logging.error('Power draw did not increase enough after ' + \ 'turning screen on.') self.write_perf_keyval(keyvals) if num_errors > 0: raise error.TestFail('Test failed with %d errors' % num_errors)
def run_once(self, power_on=True): utils.poll_for_condition( lambda: power_status.get_status().on_ac() == power_on, timeout=10, exception=error.TestError('AC power not %d' % power_on))
def run_once(self, test_hours=None, sample_hours=None, percent_initial_charge_min=0.2, max_milliwatts_standby=None): if test_hours <= sample_hours: raise error.TestFail( "Test hours must be greater than sample hours") # If we're measuring <= 6min of S3 then the S0 time is not negligible. # Note, reasonable rule of thumb is S0 idle is ~10-20 times S3 power. if sample_hours < self._min_sample_hours: raise error.TestFail("Must suspend more than %.2f hours" % \ sample_hours) # Query initial power status power_stats = power_status.get_status() power_stats.assert_battery_state(percent_initial_charge_min) charge_start = power_stats.battery[0].charge_now voltage_start = power_stats.battery[0].voltage_now max_hours = charge_start * voltage_start / \ (max_milliwatts_standby / 1000) if max_hours < test_hours: raise error.TestFail('Battery not charged adequately for test') elapsed_hours = 0 while elapsed_hours < test_hours: charge_before = power_stats.battery[0].charge_now before_suspend_secs = rtc.get_seconds() sys_power.do_suspend(sample_hours * 3600) after_suspend_secs = rtc.get_seconds() power_stats.refresh() if power_stats.percent_current_charge() < self._percent_min_charge: logging.warning( "Battery percent = %.2f%%. Too low to continue") break # check that the RTC slept the correct amount of time as there could # potentially be another wake source that would spoil the test. actual_hours = (after_suspend_secs - before_suspend_secs) / 3600.0 logging.debug("actual_hours = %.4f", actual_hours) percent_diff = math.fabs((actual_hours - sample_hours) / ((actual_hours + sample_hours) / 2) * 100) if percent_diff > 2: err_str = "Requested S3 time and actual varied by %.2f%%." \ % percent_diff raise error.TestFail(err_str) # Check resulting charge consumption charge_used = charge_before - power_stats.battery[0].charge_now logging.debug("charge_used = %.6f", charge_used) elapsed_hours += actual_hours logging.debug("elapsed_hours = %.4f", elapsed_hours) charge_end = power_stats.battery[0].charge_now voltage_end = power_stats.battery[0].voltage_now standby_hours = power_stats.battery[0].charge_full_design / \ (charge_start - charge_end) * elapsed_hours energy_used = charge_start * voltage_start - charge_end * voltage_end if energy_used <= 0: raise error.TestError("Energy used reading is suspect.") standby_milliwatts = energy_used / elapsed_hours * 1000 results = {} results['milliwatts_standby_power'] = standby_milliwatts results['hours_standby_time'] = standby_hours self.write_perf_keyval(results) # need to sleep for some time to allow network connection to return time.sleep(10)