| # Copyright (c) 2012 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, time |
| |
| from autotest_lib.client.bin import test |
| from autotest_lib.client.common_lib.cros import chrome |
| from autotest_lib.client.cros import power_rapl, power_status, power_utils |
| from autotest_lib.client.cros import service_stopper |
| from autotest_lib.client.cros.bluetooth import bluetooth_device_xmlrpc_server |
| |
| |
| class power_Idle(test.test): |
| """class for power_Idle test. |
| |
| Collects power stats when machine is idle, also compares power stats between |
| when bluetooth adapter is on and off. |
| """ |
| version = 1 |
| |
| def initialize(self): |
| """Perform necessary initialization prior to test run. |
| |
| Private Attributes: |
| _backlight: power_utils.Backlight object |
| _services: service_stopper.ServiceStopper object |
| """ |
| super(power_Idle, self).initialize() |
| self._backlight = None |
| self._services = service_stopper.ServiceStopper( |
| service_stopper.ServiceStopper.POWER_DRAW_SERVICES) |
| self._services.stop_services() |
| |
| |
| def warmup(self, warmup_time=60): |
| """Warm up. |
| |
| Wait between initialization and run_once for new settings to stabilize. |
| """ |
| time.sleep(warmup_time) |
| |
| |
| def run_once(self, idle_time=120, sleep=10, bt_warmup_time=20): |
| """Collect power stats when bluetooth adapter is on or off. |
| |
| """ |
| 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_powercap_support(): |
| measurements += power_rapl.create_powercap() |
| elif 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('bluetooth_adapter_off', self._start_time) |
| self._tlog.checkpoint('', self._start_time) |
| self._psr.refresh() |
| |
| # Turn on bluetooth adapter. |
| bt_device = bluetooth_device_xmlrpc_server \ |
| .BluetoothDeviceXmlRpcDelegate() |
| # If we cannot start bluetoothd, fail gracefully and still write |
| # data with bluetooth adapter off to file, as we are interested in |
| # just that data too. start_bluetoothd() already logs the error so |
| # not logging any error here. |
| if not bt_device.start_bluetoothd(): |
| return |
| if not bt_device.set_powered(True): |
| logging.warning("Cannot turn on bluetooth adapter.") |
| return |
| time.sleep(bt_warmup_time) |
| if not bt_device._is_powered_on(): |
| logging.warning("Bluetooth adapter is off.") |
| return |
| t1 = time.time() |
| time.sleep(idle_time) |
| self._plog.checkpoint('bluetooth_adapter_on', t1) |
| bt_device.set_powered(False) |
| bt_device.stop_bluetoothd() |
| |
| def postprocess_iteration(self): |
| """Write power stats to file. |
| |
| """ |
| keyvals = self._stats.publish() |
| |
| # record the current and max backlight levels |
| self._backlight = power_utils.Backlight() |
| keyvals['level_backlight_max'] = self._backlight.get_max_level() |
| keyvals['level_backlight_current'] = self._backlight.get_level() |
| |
| # record battery stats if not on AC |
| if self.status.on_ac(): |
| keyvals['b_on_ac'] = 1 |
| else: |
| keyvals['b_on_ac'] = 0 |
| keyvals['ah_charge_full'] = self.status.battery[0].charge_full |
| keyvals['ah_charge_full_design'] = \ |
| self.status.battery[0].charge_full_design |
| keyvals['ah_charge_now'] = self.status.battery[0].charge_now |
| keyvals['a_current_now'] = self.status.battery[0].current_now |
| keyvals['wh_energy'] = self.status.battery[0].energy |
| keyvals['w_energy_rate'] = self.status.battery[0].energy_rate |
| keyvals['h_remaining_time'] = self.status.battery[0].remaining_time |
| keyvals['v_voltage_min_design'] = \ |
| self.status.battery[0].voltage_min_design |
| keyvals['v_voltage_now'] = self.status.battery[0].voltage_now |
| keyvals.update(self._plog.calc()) |
| |
| keyvals.update(self._tlog.calc()) |
| keyvals.update(self._psr.get_keyvals()) |
| logging.debug("keyvals = %s", keyvals) |
| |
| self.write_perf_keyval(keyvals) |
| |
| |
| def cleanup(self): |
| """Reverse setting change in initialization. |
| |
| """ |
| if self._backlight: |
| self._backlight.restore() |
| self._services.restore_services() |
| super(power_Idle, self).cleanup() |
