• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# Copyright 2014 The Chromium Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5from metrics import cpu
6from metrics import memory
7from metrics import power
8from telemetry.page import page_measurement
9
10
11class WebRTC(page_measurement.PageMeasurement):
12  """Gathers WebRTC-related metrics on a page set."""
13
14  def __init__(self):
15    super(WebRTC, self).__init__('RunWebrtc')
16    self._cpu_metric = None
17    self._memory_metric = None
18    self._power_metric = power.PowerMetric()
19
20  def DidStartBrowser(self, browser):
21    self._cpu_metric = cpu.CpuMetric(browser)
22    self._memory_metric = memory.MemoryMetric(browser)
23
24  def DidNavigateToPage(self, page, tab):
25    self._cpu_metric.Start(page, tab)
26    self._memory_metric.Start(page, tab)
27    self._power_metric.Start(page, tab)
28
29  def CustomizeBrowserOptions(self, options):
30    memory.MemoryMetric.CustomizeBrowserOptions(options)
31    options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream')
32    options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream')
33    power.PowerMetric.CustomizeBrowserOptions(options)
34
35  def MeasurePage(self, page, tab, results):
36    """Measure the page's performance."""
37    self._memory_metric.Stop(page, tab)
38    self._memory_metric.AddResults(tab, results)
39
40    self._cpu_metric.Stop(page, tab)
41    self._cpu_metric.AddResults(tab, results)
42
43    self._power_metric.Stop(page, tab)
44    self._power_metric.AddResults(tab, results)
45