tools/perf/measurements/oilpan_gc_times.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 import os
   6
   7 from telemetry.core.platform import tracing_category_filter
   8 from telemetry.core.platform import tracing_options
   9 from telemetry.page import action_runner
  10 from telemetry.page import page_test
  11 from telemetry.timeline.model import TimelineModel
  12 from telemetry.value import list_of_scalar_values
  13 from telemetry.value import scalar
  14
  15
  16 _CR_RENDERER_MAIN = 'CrRendererMain'
  17 _RUN_SMOOTH_ACTIONS = 'RunSmoothAllActions'
  18
  19
  20 def _AddTracingResults(thread, results):
  21   _GC_REASONS = ['precise', 'conservative', 'idle', 'forced']
  22   _GC_STAGES = ['mark', 'lazy_sweep', 'complete_sweep']
  23
  24   def GetGcReason(event, async_slices):
  25     args = event.args
  26
  27     # Old format
  28     if 'precise' in args:
  29       if args['forced']:
  30         return 'forced'
  31       return 'precise' if args['precise'] else 'conservative'
  32
  33     if args['gcReason'] == 'ConservativeGC':
  34       return 'conservative'
  35     if args['gcReason'] == 'PreciseGC':
  36       return 'precise'
  37     if args['gcReason'] == 'ForcedGCForTesting':
  38       for s in async_slices:
  39         if s.start <= event.start and event.end <= s.end:
  40           return 'forced'
  41       # Ignore this forced GC being out of target ranges
  42       return None
  43     if args['gcReason'] == 'IdleGC':
  44       return 'idle'
  45     return None  # Unknown
  46
  47   def DumpMetric(page, name, values, unit, results):
  48     if values[name]:
  49       results.AddValue(list_of_scalar_values.ListOfScalarValues(
  50           page, name, unit, values[name]))
  51       results.AddValue(scalar.ScalarValue(
  52           page, name + '_max', unit, max(values[name])))
  53       results.AddValue(scalar.ScalarValue(
  54           page, name + '_total', unit, sum(values[name])))
  55
  56   events = thread.all_slices
  57   async_slices = [s for s in thread.async_slices
  58                   if s.name == 'BlinkGCTimeMeasurement']
  59
  60   # Prepare
  61   values = {'oilpan_coalesce': []}
  62   for reason in _GC_REASONS:
  63     for stage in _GC_STAGES:
  64       values['oilpan_%s_%s' % (reason, stage)] = []
  65
  66   # Parse trace events
  67   reason = None
  68   mark_time = 0
  69   lazy_sweep_time = 0
  70   complete_sweep_time = 0
  71   for event in events:
  72     duration = event.thread_duration or event.duration
  73     if event.name == 'ThreadHeap::coalesce':
  74       values['oilpan_coalesce'].append(duration)
  75       continue
  76     if event.name == 'Heap::collectGarbage':
  77       if reason is not None:
  78         values['oilpan_%s_mark' % reason].append(mark_time)
  79         values['oilpan_%s_lazy_sweep' % reason].append(lazy_sweep_time)
  80         values['oilpan_%s_complete_sweep' % reason].append(complete_sweep_time)
  81
  82       reason = GetGcReason(event, async_slices)
  83       mark_time = duration
  84       lazy_sweep_time = 0
  85       complete_sweep_time = 0
  86       continue
  87     if event.name == 'ThreadHeap::lazySweepPages':
  88       lazy_sweep_time += duration
  89       continue
  90     if event.name == 'ThreadState::completeSweep':
  91       complete_sweep_time += duration
  92       continue
  93
  94   if reason is not None:
  95     values['oilpan_%s_mark' % reason].append(mark_time)
  96     values['oilpan_%s_lazy_sweep' % reason].append(lazy_sweep_time)
  97     values['oilpan_%s_complete_sweep' % reason].append(complete_sweep_time)
  98
  99   page = results.current_page
 100   unit = 'ms'
 101
 102   # Dump each metric
 103   DumpMetric(page, 'oilpan_coalesce', values, unit, results)
 104   for reason in _GC_REASONS:
 105     for stage in _GC_STAGES:
 106       DumpMetric(page, 'oilpan_%s_%s' % (reason, stage), values, unit, results)
 107
 108   # Summarize each stage
 109   for stage in _GC_STAGES:
 110     total_time = 0
 111     for reason in _GC_REASONS:
 112       total_time += sum(values['oilpan_%s_%s' % (reason, stage)])
 113     results.AddValue(
 114         scalar.ScalarValue(page, 'oilpan_%s' % stage, unit, total_time))
 115
 116   # Summarize sweeping time
 117   total_sweep_time = 0
 118   for stage in ['lazy_sweep', 'complete_sweep']:
 119     sweep_time = 0
 120     for reason in _GC_REASONS:
 121       sweep_time += sum(values['oilpan_%s_%s' % (reason, stage)])
 122     key = 'oilpan_%s' % stage
 123     results.AddValue(scalar.ScalarValue(page, key, unit, sweep_time))
 124     total_sweep_time += sweep_time
 125   results.AddValue(
 126       scalar.ScalarValue(page, 'oilpan_sweep', unit, total_sweep_time))
 127
 128   gc_time = 0
 129   for key in values:
 130     gc_time += sum(values[key])
 131   results.AddValue(scalar.ScalarValue(page, 'oilpan_gc', unit, gc_time))
 132
 133
 134 class _OilpanGCTimesBase(page_test.PageTest):
 135   def __init__(self, action_name=''):
 136     super(_OilpanGCTimesBase, self).__init__(action_name)
 137
 138   def WillNavigateToPage(self, page, tab):
 139     # FIXME: Remove webkit.console when blink.console lands in chromium and
 140     # the ref builds are updated. crbug.com/386847
 141     categories = ['webkit.console', 'blink.console', 'blink_gc']
 142     category_filter = tracing_category_filter.TracingCategoryFilter()
 143     for c in categories:
 144       category_filter.AddIncludedCategory(c)
 145     options = tracing_options.TracingOptions()
 146     options.enable_chrome_trace = True
 147     tab.browser.platform.tracing_controller.Start(options, category_filter,
 148                                                   timeout=1000)
 149
 150   def ValidateAndMeasurePage(self, page, tab, results):
 151     timeline_data = tab.browser.platform.tracing_controller.Stop()
 152     timeline_model = TimelineModel(timeline_data)
 153     threads = timeline_model.GetAllThreads()
 154     for thread in threads:
 155       if thread.name == _CR_RENDERER_MAIN:
 156         _AddTracingResults(thread, results)
 157
 158   def CleanUpAfterPage(self, page, tab):
 159     if tab.browser.platform.tracing_controller.is_tracing_running:
 160       tab.browser.platform.tracing_controller.Stop()
 161
 162
 163 class OilpanGCTimesForSmoothness(_OilpanGCTimesBase):
 164   def __init__(self):
 165     super(OilpanGCTimesForSmoothness, self).__init__()
 166     self._interaction = None
 167
 168   def DidNavigateToPage(self, page, tab):
 169     runner = action_runner.ActionRunner(tab)
 170     self._interaction = runner.CreateInteraction(_RUN_SMOOTH_ACTIONS)
 171     self._interaction.Begin()
 172
 173   def ValidateAndMeasurePage(self, page, tab, results):
 174     self._interaction.End()
 175     super(OilpanGCTimesForSmoothness, self).ValidateAndMeasurePage(
 176         page, tab, results)
 177
 178
 179 class OilpanGCTimesForBlinkPerf(_OilpanGCTimesBase):
 180   def __init__(self):
 181     super(OilpanGCTimesForBlinkPerf, self).__init__()
 182     with open(os.path.join(os.path.dirname(__file__), '..', 'benchmarks',
 183                            'blink_perf.js'), 'r') as f:
 184       self._blink_perf_js = f.read()
 185
 186   def WillNavigateToPage(self, page, tab):
 187     page.script_to_evaluate_on_commit = self._blink_perf_js
 188     super(OilpanGCTimesForBlinkPerf, self).WillNavigateToPage(page, tab)
 189
 190   def ValidateAndMeasurePage(self, page, tab, results):
 191     tab.WaitForJavaScriptExpression('testRunner.isDone', 600)
 192     super(OilpanGCTimesForBlinkPerf, self).ValidateAndMeasurePage(
 193         page, tab, results)
 194
 195
 196 class OilpanGCTimesForInternals(OilpanGCTimesForBlinkPerf):
 197   def __init__(self):
 198     super(OilpanGCTimesForInternals, self).__init__()
 199
 200   @classmethod
 201   def CustomizeBrowserOptions(cls, options):
 202     # 'expose-internals-for-testing' can be enabled on content shell.
 203     assert 'content-shell' in options.browser_type
 204     options.AppendExtraBrowserArgs(['--expose-internals-for-testing',
 205                                     '--js-flags=--expose-gc'])