tools/perf/measurements/smoothness.py

   1 # Copyright 2013 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
   5 from telemetry.page import page_test
   6
   7 from measurements import smoothness_controller
   8 from metrics import power
   9
  10
  11 class Smoothness(page_test.PageTest):
  12   def __init__(self):
  13     super(Smoothness, self).__init__()
  14     self._power_metric = None
  15     self._smoothness_controller = None
  16
  17   @classmethod
  18   def CustomizeBrowserOptions(cls, options):
  19     options.AppendExtraBrowserArgs('--enable-gpu-benchmarking')
  20     options.AppendExtraBrowserArgs('--touch-events=enabled')
  21     options.AppendExtraBrowserArgs('--running-performance-benchmark')
  22     power.PowerMetric.CustomizeBrowserOptions(options)
  23
  24   def WillStartBrowser(self, platform):
  25     self._power_metric = power.PowerMetric(platform)
  26
  27   def WillNavigateToPage(self, page, tab):
  28     self._power_metric.Start(page, tab)
  29     self._smoothness_controller = smoothness_controller.SmoothnessController()
  30     self._smoothness_controller.SetUp(page, tab)
  31
  32   def WillRunActions(self, page, tab):
  33     self._smoothness_controller.Start(tab)
  34
  35   def DidRunActions(self, page, tab):
  36     self._power_metric.Stop(page, tab)
  37     self._smoothness_controller.Stop(tab)
  38
  39   def ValidateAndMeasurePage(self, page, tab, results):
  40     self._power_metric.AddResults(tab, results)
  41     self._smoothness_controller.AddResults(tab, results)
  42
  43   def CleanUpAfterPage(self, page, tab):
  44     if self._power_metric:
  45       self._power_metric.Stop(page, tab)
  46     if self._smoothness_controller:
  47       self._smoothness_controller.CleanUp(tab)