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 from telemetry.timeline import tracing_category_filter
   7 from telemetry.web_perf import timeline_based_measurement
   8
   9
  10 class _CustomResultsWrapper(timeline_based_measurement.ResultsWrapperInterface):
  11   def __init__(self):
  12     super(_CustomResultsWrapper, self).__init__()
  13     self._pages_to_tir_labels = {}
  14
  15   def _AssertNewValueHasSameInteractionLabel(self, new_value):
  16     tir_label = self._pages_to_tir_labels.get(new_value.page)
  17     if tir_label:
  18       assert tir_label == self._tir_label, (
  19         'Smoothness measurement do not support multiple interaction record '
  20         'labels per page yet. See crbug.com/453109 for more information.')
  21     else:
  22       self._pages_to_tir_labels[new_value.page] = self._tir_label
  23
  24   def AddValue(self, value):
  25     self._AssertNewValueHasSameInteractionLabel(value)
  26     self._results.AddValue(value)
  27
  28
  29 class Smoothness(page_test.PageTest):
  30   def __init__(self, needs_browser_restart_after_each_page=False):
  31     super(Smoothness, self).__init__(needs_browser_restart_after_each_page)
  32     self._results_wrapper = _CustomResultsWrapper()
  33     self._tbm = None
  34
  35   @classmethod
  36   def CustomizeBrowserOptions(cls, options):
  37     options.AppendExtraBrowserArgs('--enable-gpu-benchmarking')
  38     options.AppendExtraBrowserArgs('--touch-events=enabled')
  39     options.AppendExtraBrowserArgs('--running-performance-benchmark')
  40     options.AppendExtraBrowserArgs('--js-flags=--expose-gc')
  41
  42   def WillNavigateToPage(self, page, tab):
  43     tracing_controller = tab.browser.platform.tracing_controller
  44     # FIXME: Remove webkit.console when blink.console lands in chromium and
  45     # the ref builds are updated. crbug.com/386847
  46     custom_categories = [
  47         'webkit.console', 'blink.console', 'benchmark', 'trace_event_overhead']
  48     category_filter = tracing_category_filter.TracingCategoryFilter(
  49         ','.join(custom_categories))
  50     self._tbm = timeline_based_measurement.TimelineBasedMeasurement(
  51         timeline_based_measurement.Options(category_filter),
  52         self._results_wrapper)
  53     self._tbm.WillRunStoryForPageTest(
  54         tracing_controller, page.GetSyntheticDelayCategories())
  55
  56   def ValidateAndMeasurePage(self, _, tab, results):
  57     tracing_controller = tab.browser.platform.tracing_controller
  58     self._tbm.MeasureForPageTest(tracing_controller, results)
  59
  60   def DidRunPage(self, platform):
  61     if self._tbm:
  62       self._tbm.DidRunStoryForPageTest(platform.tracing_controller)
  63
  64
  65 class Repaint(Smoothness):
  66   def CustomizeBrowserOptions(self, options):
  67     options.AppendExtraBrowserArgs([
  68         '--enable-impl-side-painting',
  69         '--enable-threaded-compositing',
  70         '--enable-gpu-benchmarking'
  71     ])
  72
  73 class SmoothnessWithRestart(Smoothness):
  74   def __init__(self):
  75     super(SmoothnessWithRestart, self).__init__(
  76         needs_browser_restart_after_each_page=True)