tools/perf/measurements/repaint.py

   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
   5 from measurements import smoothness_controller
   6 from telemetry.page import page_test
   7
   8
   9 class Repaint(page_test.PageTest):
  10   def __init__(self):
  11     super(Repaint, self).__init__('RunRepaint', False)
  12     self._smoothness_controller = None
  13     self._micro_benchmark_id = None
  14
  15   @classmethod
  16   def AddCommandLineArgs(cls, parser):
  17     parser.add_option('--mode', type='string',
  18                       default='viewport',
  19                       help='Invalidation mode. '
  20                       'Supported values: fixed_size, layer, random, viewport.')
  21     parser.add_option('--width', type='int',
  22                       default=None,
  23                       help='Width of invalidations for fixed_size mode.')
  24     parser.add_option('--height', type='int',
  25                       default=None,
  26                       help='Height of invalidations for fixed_size mode.')
  27
  28   def CustomizeBrowserOptions(self, options):
  29     options.AppendExtraBrowserArgs([
  30         '--enable-impl-side-painting',
  31         '--enable-threaded-compositing',
  32         '--enable-gpu-benchmarking'
  33     ])
  34
  35   def WillRunActions(self, page, tab):
  36     tab.WaitForDocumentReadyStateToBeComplete()
  37     self._smoothness_controller = smoothness_controller.SmoothnessController()
  38     self._smoothness_controller.SetUp(page, tab)
  39     self._smoothness_controller.Start(tab)
  40     # Rasterize only what's visible.
  41     tab.ExecuteJavaScript(
  42         'chrome.gpuBenchmarking.setRasterizeOnlyVisibleContent();')
  43
  44     args = {}
  45     args['mode'] = self.options.mode
  46     if self.options.width:
  47       args['width'] = self.options.width
  48     if self.options.height:
  49       args['height'] = self.options.height
  50
  51     # Enque benchmark
  52     tab.ExecuteJavaScript("""
  53         window.benchmark_results = {};
  54         window.benchmark_results.id =
  55             chrome.gpuBenchmarking.runMicroBenchmark(
  56                 "invalidation_benchmark",
  57                 function(value) {},
  58                 """ + str(args) + """
  59             );
  60     """)
  61
  62     self._micro_benchmark_id = tab.EvaluateJavaScript(
  63         'window.benchmark_results.id')
  64     if (not self._micro_benchmark_id):
  65       raise page_test.MeasurementFailure(
  66           'Failed to schedule invalidation_benchmark.')
  67
  68   def DidRunActions(self, page, tab):
  69     tab.ExecuteJavaScript("""
  70         window.benchmark_results.message_handled =
  71             chrome.gpuBenchmarking.sendMessageToMicroBenchmark(
  72                 """ + str(self._micro_benchmark_id) + """, {
  73                   "notify_done": true
  74                 });
  75     """)
  76     self._smoothness_controller.Stop(tab)
  77
  78   def ValidateAndMeasurePage(self, page, tab, results):
  79     self._smoothness_controller.AddResults(tab, results)
  80
  81   def CleanUpAfterPage(self, _, tab):
  82     self._smoothness_controller.CleanUp(tab)