314 lines
13 KiB
Python
314 lines
13 KiB
Python
# Copyright 2018 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import logging
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import re
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import time
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from autotest_lib.client.bin import test
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from autotest_lib.client.common_lib import error
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from autotest_lib.client.common_lib.cros import retry
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from autotest_lib.client.common_lib.cros.network import interface
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from autotest_lib.client.cros import ec
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from autotest_lib.client.cros import service_stopper
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from autotest_lib.client.cros.camera import camera_utils
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from autotest_lib.client.cros.power import power_dashboard
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from autotest_lib.client.cros.power import power_status
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from autotest_lib.client.cros.power import power_telemetry_utils
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from autotest_lib.client.cros.power import power_utils
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from autotest_lib.client.cros.video import histogram_verifier
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class power_Test(test.test):
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"""Optional base class power related tests."""
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version = 1
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keypress_histogram = 'Event.Latency.EndToEnd.KeyPress'
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histogram_re = 'Histogram: %s recorded (\d+) samples, mean = (\d+\.\d+)'
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hist_percentile_re = '^(\d+).+\{(\d+)\.\d+\%\}'
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def initialize(self, seconds_period=20., pdash_note='',
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force_discharge=False,
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check_network=False):
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"""Perform necessary initialization prior to power test run.
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@param seconds_period: float of probing interval in seconds.
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@param pdash_note: note of the current run to send to power dashboard.
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@param force_discharge: force battery to discharge during the test.
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@param check_network: check that Ethernet interface is not running.
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@var backlight: power_utils.Backlight object.
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@var keyvals: dictionary of result keyvals.
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@var status: power_status.SysStat object.
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@var _checkpoint_logger: power_status.CheckpointLogger to track
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checkpoint data.
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@var _psr: power_utils.DisplayPanelSelfRefresh object to monitor PSR.
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@var _services: service_stopper.ServiceStopper object.
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@var _start_time: float of time in seconds since Epoch test started.
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@var _stats: power_status.StatoMatic object.
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@var _meas_logs: list of power_status.MeasurementLoggers
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"""
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super(power_Test, self).initialize()
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self.backlight = power_utils.Backlight()
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self.backlight.set_default()
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self.keyvals = dict()
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self.status = power_status.get_status()
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self._checkpoint_logger = power_status.CheckpointLogger()
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self._seconds_period = seconds_period
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self._force_discharge = force_discharge
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if force_discharge:
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if not self.status.battery:
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raise error.TestNAError('DUT does not have battery. '
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'Could not force discharge.')
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if not ec.has_cros_ec():
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raise error.TestNAError('DUT does not have CrOS EC. '
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'Could not force discharge.')
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if not power_utils.charge_control_by_ectool(False):
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raise error.TestError('Could not run battery force discharge.')
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ifaces = [iface for iface in interface.get_interfaces()
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if (not iface.is_wifi_device() and
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iface.name.startswith('eth'))]
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logging.debug('Ethernet interfaces include: %s',
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str([iface.name for iface in ifaces]))
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for iface in ifaces:
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if check_network and iface.is_lower_up:
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raise error.TestError('Ethernet interface is active. '
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'Please remove Ethernet cable.')
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self._psr = power_utils.DisplayPanelSelfRefresh()
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self._services = service_stopper.ServiceStopper(
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service_stopper.ServiceStopper.POWER_DRAW_SERVICES)
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self._services.stop_services()
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self._stats = power_status.StatoMatic()
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self._meas_logs = power_status.create_measurement_loggers(
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seconds_period, self._checkpoint_logger)
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logging.debug('measurement loggers (%d):', len(self._meas_logs))
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for log in self._meas_logs:
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logging.debug('%s: %s', type(log).__name__, ", ".join(log.domains))
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self._pdash_note = pdash_note
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def get_extra_browser_args_for_camera_test(self):
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"""Return Chrome args for camera power test."""
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ret = [
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# No pop up to ask permission to record video.
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'--use-fake-ui-for-media-stream',
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# Allow 2 windows side by side.
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'--force-tablet-mode=clamshell',
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# Prefer using constant frame rate for camera streaming.
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'--enable-features=PreferConstantFrameRate',
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]
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# Use fake camera for DUT without camera, e.g. chromebox.
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if not camera_utils.has_builtin_or_vivid_camera():
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ret.append('--use-fake-device-for-media-stream')
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self.keyvals['use_fake_camera'] = 1
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else:
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self.keyvals['use_fake_camera'] = 0
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return ret
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def warmup(self, warmup_time=30):
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"""Warm up.
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Wait between initialization and run_once for new settings to stabilize.
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@param warmup_time: integer of seconds to warmup.
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"""
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time.sleep(warmup_time)
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def start_measurements(self):
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"""Start measurements."""
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for log in self._meas_logs:
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log.start()
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self._start_time = time.time()
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if self.status.battery:
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self._start_energy = self.status.battery.energy
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power_telemetry_utils.start_measurement()
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def loop_sleep(self, loop, sleep_secs):
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"""Jitter free sleep.
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@param loop: integer of loop (1st is zero).
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@param sleep_secs: integer of desired sleep seconds.
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"""
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next_time = self._start_time + (loop + 1) * sleep_secs
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time.sleep(next_time - time.time())
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def checkpoint_measurements(self, name, start_time=None):
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"""Checkpoint measurements.
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@param name: string name of measurement being checkpointed.
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@param start_time: float of time in seconds since Epoch that
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measurements being checkpointed began.
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"""
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if not start_time:
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start_time = self._start_time
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self.status.refresh()
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self._checkpoint_logger.checkpoint(name, start_time)
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self._psr.refresh()
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@retry.retry(Exception, timeout_min=1, delay_sec=2)
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def collect_keypress_latency(self, cr):
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"""Collect keypress latency information from Histograms.
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@param cr: object, the Chrome instance
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"""
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keypress_histogram_end = histogram_verifier.get_histogram(
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cr, self.keypress_histogram)
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logger = power_dashboard.KeyvalLogger(self._start_time, time.time())
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matches = re.search((self.histogram_re % self.keypress_histogram),
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keypress_histogram_end)
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if matches:
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count = int(matches.group(1))
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mean_latency = float(matches.group(2))
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logging.info('latency count %d mean %f', count, mean_latency)
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self.keyvals['keypress_cnt'] = count
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self.keyvals['keypress_latency_us_avg'] = mean_latency
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self.output_perf_value(description='keypress_cnt', value=count,
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higher_is_better=True)
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self.output_perf_value(description='keypress_latency_us_avg',
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value=mean_latency,
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higher_is_better=False)
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logger.add_item('keypress_cnt', count, 'point', 'keypress')
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logger.add_item('keypress_latency_us_avg', mean_latency, 'point',
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'keypress')
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# Capture the first bucket >= 90th percentile
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for s in keypress_histogram_end.splitlines():
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matches = re.search((self.hist_percentile_re), s)
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if matches:
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lat = int(matches.group(1))
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perc = int(matches.group(2))
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if perc >= 90:
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self.keyvals['keypress_latency_us_high'] = lat
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self.keyvals['keypress_high_percentile'] = perc
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self.output_perf_value(
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description='keypress_latency_us_high', value=lat,
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higher_is_better=False)
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self.output_perf_value(
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description='keypress_high_percentile', value=perc,
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higher_is_better=False)
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logger.add_item('keypress_latency_us_high', lat, 'point',
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'keypress')
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logger.add_item('keypress_high_percentile', perc, 'point',
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'keypress')
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break
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self._meas_logs.append(logger)
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def publish_keyvals(self):
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"""Publish power result keyvals."""
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keyvals = self._stats.publish()
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keyvals['level_backlight_max'] = self.backlight.get_max_level()
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keyvals['level_backlight_current'] = self.backlight.get_level()
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# record battery stats if not on AC
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if not self._force_discharge and self.status.on_ac():
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keyvals['b_on_ac'] = 1
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else:
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keyvals['b_on_ac'] = 0
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if self.status.battery:
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keyvals['ah_charge_full'] = self.status.battery.charge_full
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keyvals['ah_charge_full_design'] = \
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self.status.battery.charge_full_design
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keyvals['ah_charge_now'] = self.status.battery.charge_now
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keyvals['a_current_now'] = self.status.battery.current_now
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keyvals['wh_energy_full'] = self.status.battery.energy_full
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keyvals['wh_energy_full_design'] = \
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self.status.battery.energy_full_design
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keyvals['wh_energy_now'] = self.status.battery.energy
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keyvals['wh_energy_start'] = self._start_energy
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energy_used = self._start_energy - self.status.battery.energy
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runtime_minutes = (time.time() - self._start_time) / 60.
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keyvals['wh_energy_used'] = energy_used
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keyvals['minutes_tested'] = runtime_minutes
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low_batt = power_utils.get_low_battery_shutdown_percent()
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keyvals['percent_sys_low_battery'] = low_batt
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if energy_used > 0 and runtime_minutes > 1:
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keyvals['w_energy_rate'] = energy_used * 60. / runtime_minutes
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energy_avail = self.status.battery.energy_full_design * \
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((100. - low_batt) / 100.)
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keyvals['minutes_battery_life'] = energy_avail / energy_used * \
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runtime_minutes
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keyvals['hours_battery_life'] = \
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keyvals['minutes_battery_life'] / 60.
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keyvals['v_voltage_min_design'] = \
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self.status.battery.voltage_min_design
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keyvals['v_voltage_now'] = self.status.battery.voltage_now
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for log in self._meas_logs:
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keyvals.update(log.calc())
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keyvals.update(self._psr.get_keyvals())
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self.keyvals.update(keyvals)
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core_keyvals = power_utils.get_core_keyvals(self.keyvals)
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self.write_perf_keyval(core_keyvals)
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def publish_dashboard(self):
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"""Report results to chromeperf & power dashboard."""
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self.publish_keyvals()
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# publish power values
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for key, values in self.keyvals.iteritems():
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if key.endswith('pwr_avg'):
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self.output_perf_value(description=key, value=values, units='W',
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higher_is_better=False, graph='power')
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# publish temperature values
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for key, values in self.keyvals.iteritems():
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if key.endswith('temp_avg'):
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self.output_perf_value(description=key, value=values, units='C',
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higher_is_better=False, graph='temperature')
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# publish fps values
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for key, values in self.keyvals.iteritems():
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if key.endswith('fps_avg'):
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self.output_perf_value(description=key, value=values,
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units='fps', higher_is_better=True, graph='fps')
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# publish to power dashboard
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dashboard_factory = power_dashboard.get_dashboard_factory()
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for log in self._meas_logs:
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dashboard = dashboard_factory.createDashboard(log,
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self.tagged_testname, self.resultsdir, note=self._pdash_note)
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dashboard.upload()
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def _save_results(self):
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"""Save results of each logger in resultsdir."""
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for log in self._meas_logs:
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log.save_results(self.resultsdir)
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self._checkpoint_logger.save_checkpoint_data(self.resultsdir)
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def postprocess_iteration(self):
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"""Write keyval and send data to dashboard."""
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power_telemetry_utils.end_measurement()
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self.status.refresh()
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for log in self._meas_logs:
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log.done = True
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super(power_Test, self).postprocess_iteration()
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self.publish_dashboard()
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self._save_results()
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def cleanup(self):
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"""Reverse setting change in initialization."""
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if self._force_discharge:
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if not power_utils.charge_control_by_ectool(True):
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logging.warn('Can not restore from force discharge.')
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if self.backlight:
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self.backlight.restore()
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self._services.restore_services()
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super(power_Test, self).cleanup()
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