Python: module telemetry.internal.platform.power_monitor.cros_power_monitor

telemetry.internal.platform.power_monitor.cros_power_monitor | index telemetry/internal/platform/power_monitor/cros_power_monitor.py

`# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.`

Modules
`` |  |
collections | telemetry.decorators | re | telemetry.internal.platform.power_monitor.sysfs_power_monitor

Classes
`` |  | telemetry.internal.platform.power_monitor.sysfs_power_monitor.SysfsPowerMonitor(telemetry.internal.platform.power_monitor.PowerMonitor) CrosPowerMonitor
class CrosPowerMonitor(telemetry.internal.platform.power_monitor.sysfs_power_monitor.SysfsPowerMonitor)
`` | `PowerMonitor that relies on 'dump_power_status' to monitor power consumption of a single ChromeOS application.`
| Method resolution order: CrosPowerMonitor telemetry.internal.platform.power_monitor.sysfs_power_monitor.SysfsPowerMonitor telemetry.internal.platform.power_monitor.PowerMonitor __builtin__.object Methods defined here: CanMonitorPower(*args, **kwargs) StartMonitoringPower(self, browser) StopMonitoringPower(self) __init__(self, platform_backend) `Constructor. Args: platform_backend: A LinuxBasedPlatformBackend object. Attributes: _initial_power: The result of 'dump_power_status' before the test. _start_time: The epoch time at which the test starts executing.` Static methods defined here: IsOnBatteryPower(status, board) `Determines if the devices is being charged. Args: status: The parsed result of 'dump_power_status' board: The name of the board running the test. Returns: True if the device is on battery power; False otherwise.` ParsePower(initial_stats, final_stats, length_h) `Parse output of 'dump_power_status' Args: initial_stats: The output of 'dump_power_status' before the test. final_stats: The output of 'dump_power_status' after the test. length_h: The length of the test in hours. Returns: Dictionary in the format returned by StopMonitoringPower().` ParsePowerStatus(sample) `Parses 'dump_power_status' command output. Args: sample: The output of 'dump_power_status' Returns: Dictionary containing all fields from 'dump_power_status'` SplitSample(sample) `Splits a power and time sample into the two separate values. Args: sample: The result of calling 'dump_power_status; date +%s' on the device. Returns: A tuple of power sample and epoch time of the sample.` Methods inherited from telemetry.internal.platform.power_monitor.sysfs_power_monitor.SysfsPowerMonitor: GetCpuFreq(self) `Retrieve CPU frequency times from the device. Returns: Dictionary containing frequency times for each CPU.` GetCpuState(self) `Retrieve CPU c-state residency times from the device. Returns: Dictionary containing c-state residency times for each CPU.` Static methods inherited from telemetry.internal.platform.power_monitor.sysfs_power_monitor.SysfsPowerMonitor: CombineResults(cpu_stats, power_stats) `Add frequency and c-state residency data to the power data. Args: cpu_stats: Dictionary containing CPU statistics. power_stats: Dictionary containing power statistics. Returns: Dictionary in the format returned by StopMonitoringPower.` ComputeCpuStats(initial, final) `Parse the CPU c-state and frequency values saved during monitoring. Args: initial: The parsed dictionary of initial statistics to be converted into percentages. final: The parsed dictionary of final statistics to be converted into percentages. Returns: Dictionary containing percentages for each CPU as well as an average across all CPUs.` ParseFreqSample(sample) `Parse a single frequency sample. Args: sample: The single sample of frequency data to be parsed. Returns: A dictionary associating a frequency with a time.` Methods inherited from telemetry.internal.platform.power_monitor.PowerMonitor: CanMeasurePerApplicationPower(self) `Returns True if the power monitor can measure power for the target application in isolation. False if power measurement is for full system energy consumption.` Data descriptors inherited from telemetry.internal.platform.power_monitor.PowerMonitor: __dict__ `dictionary for instance variables (if defined)` __weakref__ `list of weak references to the object (if defined)`