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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from telemetry.internal.results import page_test_results
from telemetry.page import page as page_module
from telemetry.testing import options_for_unittests
from telemetry.testing import page_test_test_case
from telemetry.timeline import model as model_module
from telemetry.util import wpr_modes
from telemetry.web_perf.metrics import v8_gc_latency
from telemetry.web_perf import timeline_interaction_record
class V8EventStat(object):
def __init__(self, src_event_name, result_name, result_description):
self.src_event_name = src_event_name
self.result_name = result_name
self.result_description = result_description
self.thread_duration = 0.0
self.thread_duration_inside_idle = 0.0
self.idle_task_overrun_duration = 0.0
self.max_thread_duration = 0.0
self.count = 0
class V8GCLatencyTestPageHelper(object):
def __init__(self, page_set):
self._page_set = page_set
self._model = model_module.TimelineModel()
self._renderer_process = self._model.GetOrCreateProcess(1)
self._renderer_thread = self._renderer_process.GetOrCreateThread(2)
self._renderer_thread.name = 'CrRendererMain'
self._interaction_records = []
def AddEvent(self, category, name, thread_start, thread_duration,
args=None, wall_start=None, wall_duration=None):
wall_start = wall_start or thread_start
wall_duration = wall_duration or thread_duration
self._renderer_thread.BeginSlice(category, name, wall_start, thread_start,
args=args)
self._renderer_thread.EndSlice(wall_start + wall_duration,
thread_start + thread_duration)
def AddEventWithoutThreadDuration(self, category, name,
wall_start, wall_duration):
self._renderer_thread.BeginSlice(category, name, wall_start)
self._renderer_thread.EndSlice(wall_start + wall_duration)
def AddInteractionRecord(self, label, start, end):
self._interaction_records.append(
timeline_interaction_record.TimelineInteractionRecord(label, start, end))
class MockV8GCLatencyPage(page_module.Page):
def __init__(self, page_set):
super(V8GCLatencyTestPageHelper.MockV8GCLatencyPage, self).__init__(
'file://blank.html', page_set, page_set.base_dir)
def MeasureFakePage(self):
# Create a fake page and add it to the page set.
results = page_test_results.PageTestResults()
page = V8GCLatencyTestPageHelper.MockV8GCLatencyPage(self._page_set)
self._page_set.AddStory(page)
# Pretend we're about to run the tests to silence lower level asserts.
results.WillRunPage(page)
metric = v8_gc_latency.V8GCLatency()
# Finalize the timeline import.
self._model.FinalizeImport()
for interaction in self._interaction_records:
# Measure the V8GCLatency metric and return the results
# pylint: disable=protected-access
metric._AddV8MetricsToResults(self._model, [interaction], results)
results.DidRunPage(page)
return results
class V8GCLatencyTests(page_test_test_case.PageTestTestCase):
def setUp(self):
self._options = options_for_unittests.GetCopy()
self._options.browser_options.wpr_mode = wpr_modes.WPR_OFF
def testWithNoTraceEvents(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 32)
results = test_page_helper.MeasureFakePage()
self._AssertResultsEqual(_GetEmptyResults(), _ActualValues(results))
def testWithNoGarbageCollectionEvents(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 32)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=14, wall_start=5, wall_duration=35)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
self._AssertResultsEqual(expected, _ActualValues(results))
def testWithGarbageCollectionEvents(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 88)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=77, wall_start=5, wall_duration=88)
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 5, 4)
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 15, 3)
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 23, 4)
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 34, 2)
test_page_helper.AddEvent('v8', 'V8.GCFinalizeMC', 38, 2)
test_page_helper.AddEvent('v8', 'V8.GCFinalizeMC', 42, 3)
test_page_helper.AddEvent('v8', 'V8.GCFinalizeMCReduceMemory', 46, 4)
test_page_helper.AddEvent('v8', 'V8.GCFinalizeMCReduceMemory', 51, 5)
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 62, 4)
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 72, 5)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_incremental_marking'] = ('ms', 6.0)
expected['v8_gc_incremental_marking_average'] = ('ms', 3.0)
expected['v8_gc_incremental_marking_count'] = ('count', 2)
expected['v8_gc_incremental_marking_max'] = ('ms', 4.0)
expected['v8_gc_incremental_marking_outside_idle'] = ('ms', 6.0)
expected['v8_gc_finalize_incremental'] = ('ms', 5.0)
expected['v8_gc_finalize_incremental_average'] = ('ms', 2.5)
expected['v8_gc_finalize_incremental_count'] = ('count', 2)
expected['v8_gc_finalize_incremental_max'] = ('ms', 3.0)
expected['v8_gc_finalize_incremental_outside_idle'] = ('ms', 5.0)
expected['v8_gc_finalize_incremental_reduce_memory'] = ('ms', 9.0)
expected['v8_gc_finalize_incremental_reduce_memory_average'] = ('ms', 4.5)
expected['v8_gc_finalize_incremental_reduce_memory_count'] = ('count', 2)
expected['v8_gc_finalize_incremental_reduce_memory_max'] = ('ms', 5.0)
expected['v8_gc_finalize_incremental_reduce_memory_outside_idle'] = (
'ms', 9.0)
expected['v8_gc_scavenger'] = ('ms', 7.0)
expected['v8_gc_scavenger_average'] = ('ms', 3.5)
expected['v8_gc_scavenger_count'] = ('count', 2)
expected['v8_gc_scavenger_max'] = ('ms', 4.0)
expected['v8_gc_scavenger_outside_idle'] = ('ms', 7.0)
expected['v8_gc_mark_compactor'] = ('ms', 9.0)
expected['v8_gc_mark_compactor_average'] = ('ms', 4.5)
expected['v8_gc_mark_compactor_count'] = ('count', 2)
expected['v8_gc_mark_compactor_max'] = ('ms', 5.0)
expected['v8_gc_mark_compactor_outside_idle'] = ('ms', 9.0)
expected['v8_gc_total'] = ('ms', 36.0)
expected['v8_gc_total_outside_idle'] = ('ms', 36.0)
self._AssertResultsEqual(expected, _ActualValues(results))
def testWithIdleTaskGarbageCollectionEvents(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 68)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=57, wall_start=5, wall_duration=68)
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 5, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 15, 4, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 15, 3)
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 23, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 34, 3, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 34, 2)
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 42, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 52, 6, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 52, 5)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_incremental_marking'] = ('ms', 6.0)
expected['v8_gc_incremental_marking_average'] = ('ms', 3.0)
expected['v8_gc_incremental_marking_count'] = ('count', 2)
expected['v8_gc_incremental_marking_max'] = ('ms', 4.0)
expected['v8_gc_incremental_marking_outside_idle'] = ('ms', 4.0)
expected['v8_gc_incremental_marking_percentage_idle'] = \
('idle%', 100 * 2 / 6.0)
expected['v8_gc_scavenger'] = ('ms', 7.0)
expected['v8_gc_scavenger_average'] = ('ms', 3.5)
expected['v8_gc_scavenger_count'] = ('count', 2)
expected['v8_gc_scavenger_max'] = ('ms', 4.0)
expected['v8_gc_scavenger_outside_idle'] = ('ms', 4.0)
expected['v8_gc_scavenger_percentage_idle'] = ('idle%', 100 * 3 / 7.0)
expected['v8_gc_mark_compactor'] = ('ms', 9.0)
expected['v8_gc_mark_compactor_average'] = ('ms', 4.5)
expected['v8_gc_mark_compactor_count'] = ('count', 2)
expected['v8_gc_mark_compactor_max'] = ('ms', 5.0)
expected['v8_gc_mark_compactor_outside_idle'] = ('ms', 4.0)
expected['v8_gc_mark_compactor_percentage_idle'] = ('idle%', 100 * 5 / 9.0)
expected['v8_gc_total'] = ('ms', 22.0)
expected['v8_gc_total_outside_idle'] = ('ms', 12.0)
expected['v8_gc_total_percentage_idle'] = ('idle%', 100 * 10 / 22.0)
self._AssertResultsEqual(expected, _ActualValues(results))
def testWithIdleTaskOverruns(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 92)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=80, wall_start=5, wall_duration=92)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 15, 15, {'allotted_time_ms': 8})
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 15, 14)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 34, 15, {'allotted_time_ms': 6})
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 34, 14)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 52, 23, {'allotted_time_ms': 9})
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 52, 22)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_incremental_marking'] = ('ms', 14.0)
expected['v8_gc_incremental_marking_average'] = ('ms', 14.0)
expected['v8_gc_incremental_marking_count'] = ('count', 1)
expected['v8_gc_incremental_marking_max'] = ('ms', 14.0)
expected['v8_gc_incremental_marking_outside_idle'] = ('ms', 8.0)
expected['v8_gc_incremental_marking_idle_deadline_overrun'] = ('ms', 8.0)
expected['v8_gc_incremental_marking_percentage_idle'] = \
('idle%', 100 * 6 / 14.0)
expected['v8_gc_scavenger'] = ('ms', 14.0)
expected['v8_gc_scavenger_average'] = ('ms', 14.0)
expected['v8_gc_scavenger_count'] = ('count', 1)
expected['v8_gc_scavenger_max'] = ('ms', 14.0)
expected['v8_gc_scavenger_outside_idle'] = ('ms', 6.0)
expected['v8_gc_scavenger_idle_deadline_overrun'] = ('ms', 6.0)
expected['v8_gc_scavenger_percentage_idle'] = ('idle%', 100 * 8 / 14.0)
expected['v8_gc_mark_compactor'] = ('ms', 22.0)
expected['v8_gc_mark_compactor_average'] = ('ms', 22.0)
expected['v8_gc_mark_compactor_count'] = ('count', 1)
expected['v8_gc_mark_compactor_max'] = ('ms', 22.0)
expected['v8_gc_mark_compactor_outside_idle'] = ('ms', 13.0)
expected['v8_gc_mark_compactor_idle_deadline_overrun'] = ('ms', 13.0)
expected['v8_gc_mark_compactor_percentage_idle'] = ('idle%', 100 * 9 / 22.0)
expected['v8_gc_total'] = ('ms', 50.0)
expected['v8_gc_total_outside_idle'] = ('ms', 27.0)
expected['v8_gc_total_idle_deadline_overrun'] = ('ms', 27.0)
expected['v8_gc_total_percentage_idle'] = ('idle%', 100 * 23 / 50.0)
self._AssertResultsEqual(expected, _ActualValues(results))
def testWithIdleTaskWallDurationOverruns(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 92)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=80, wall_start=5, wall_duration=92)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 15, 15, {'allotted_time_ms': 8})
test_page_helper.AddEvent('v8', 'V8.GCScavenger',
thread_start=15, thread_duration=4, wall_start=15, wall_duration=14)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_scavenger'] = ('ms', 4.0)
expected['v8_gc_scavenger_average'] = ('ms', 4.0)
expected['v8_gc_scavenger_count'] = ('count', 1)
expected['v8_gc_scavenger_max'] = ('ms', 4.0)
expected_outside_idle = 4.0 - (4.0 * 8 / 14)
expected['v8_gc_scavenger_outside_idle'] = ('ms', expected_outside_idle)
expected['v8_gc_scavenger_idle_deadline_overrun'] = ('ms', 6.0)
expected['v8_gc_scavenger_percentage_idle'] = \
('idle%', 100 * (4.0 - expected_outside_idle) / 4.0)
expected['v8_gc_total'] = expected['v8_gc_scavenger']
expected['v8_gc_total_outside_idle'] = \
expected['v8_gc_scavenger_outside_idle']
expected['v8_gc_total_idle_deadline_overrun'] = \
expected['v8_gc_scavenger_idle_deadline_overrun']
expected['v8_gc_total_percentage_idle'] = \
expected['v8_gc_scavenger_percentage_idle']
self._AssertResultsEqual(expected, _ActualValues(results))
def testWithMultipleInteractionRecords(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action1', 5, 18)
test_page_helper.AddInteractionRecord('Action2', 19, 57)
test_page_helper.AddInteractionRecord('Action3', 60, 68)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=57, wall_start=5, wall_duration=68)
# This event is not in any interaction record.
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 0, 1)
# These events are in Action1.
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 5, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 15, 4, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 15, 3)
# These events are in Action2.
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 23, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 34, 3, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCIncrementalMarking', 34, 2)
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 42, 4)
test_page_helper.AddEvent('renderer.scheduler',
'SingleThreadIdleTaskRunner::RunTask', 52, 6, {'allotted_time_ms': 12})
test_page_helper.AddEvent('v8', 'V8.GCCompactor', 52, 5)
# This event is not in any interaction record.
test_page_helper.AddEvent('v8', 'V8.GCScavenger', 58, 1)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_scavenger'] = ('ms', 7.0)
expected['v8_gc_scavenger_average'] = ('ms', 3.5)
expected['v8_gc_scavenger_count'] = ('count', 2)
expected['v8_gc_scavenger_max'] = ('ms', 4.0)
expected['v8_gc_scavenger_outside_idle'] = ('ms', 4.0)
expected['v8_gc_scavenger_percentage_idle'] = ('idle%', 100 * 3 / 7.0)
expected['v8_gc_total'] = ('ms', 7.0)
expected['v8_gc_total_outside_idle'] = ('ms', 4.0)
expected['v8_gc_total_percentage_idle'] = ('idle%', 100 * 3.0 / 7.0)
self._AssertResultsEqual(expected, _ActualValues(results, 'Action1'))
expected = _GetEmptyResults()
expected['v8_gc_incremental_marking'] = ('ms', 6.0)
expected['v8_gc_incremental_marking_average'] = ('ms', 3.0)
expected['v8_gc_incremental_marking_count'] = ('count', 2)
expected['v8_gc_incremental_marking_max'] = ('ms', 4.0)
expected['v8_gc_incremental_marking_outside_idle'] = ('ms', 4.0)
expected['v8_gc_incremental_marking_percentage_idle'] = \
('idle%', 100 * 2 / 6.0)
expected['v8_gc_mark_compactor'] = ('ms', 9.0)
expected['v8_gc_mark_compactor_average'] = ('ms', 4.5)
expected['v8_gc_mark_compactor_count'] = ('count', 2)
expected['v8_gc_mark_compactor_max'] = ('ms', 5.0)
expected['v8_gc_mark_compactor_outside_idle'] = ('ms', 4.0)
expected['v8_gc_mark_compactor_percentage_idle'] = ('idle%', 100 * 5 / 9.0)
expected['v8_gc_total'] = ('ms', 15.0)
expected['v8_gc_total_outside_idle'] = ('ms', 8.0)
expected['v8_gc_total_percentage_idle'] = ('idle%', 100 * 7.0 / 15.0)
self._AssertResultsEqual(expected, _ActualValues(results, 'Action2'))
expected = _GetEmptyResults()
self._AssertResultsEqual(expected, _ActualValues(results, 'Action3'))
def testRegress549150(self):
test_page_helper = V8GCLatencyTestPageHelper(
self.CreateEmptyPageSet())
test_page_helper.AddInteractionRecord('Action', 0, 10)
test_page_helper.AddEvent('toplevel', 'PostMessage',
thread_start=0, thread_duration=10, wall_start=0, wall_duration=10)
test_page_helper.AddEventWithoutThreadDuration(
'v8', 'V8.GCScavenger', 0, 4)
results = test_page_helper.MeasureFakePage()
expected = _GetEmptyResults()
expected['v8_gc_scavenger'] = ('ms', 4.0)
expected['v8_gc_scavenger_average'] = ('ms', 4.0)
expected['v8_gc_scavenger_count'] = ('count', 1)
expected['v8_gc_scavenger_max'] = ('ms', 4.0)
expected['v8_gc_scavenger_outside_idle'] = ('ms', 4.0)
expected['v8_gc_scavenger_percentage_idle'] = ('idle%', 0.0)
expected['v8_gc_total'] = ('ms', 4.0)
expected['v8_gc_total_outside_idle'] = ('ms', 4.0)
expected['v8_gc_total_percentage_idle'] = ('idle%', 0.0)
self._AssertResultsEqual(expected, _ActualValues(results, 'Action'))
def _AssertResultsEqual(self, expected, actual):
for key in expected.iterkeys():
self.assertIn(key, actual.keys())
self.assertEqual(expected[key], actual[key],
'Result for [' + key + '] - expected ' + str(expected[key]) +
' but got ' + str(actual[key]))
def _ActualValues(results, interaction_record=''):
return dict(list(
(v.name, (v.units, v.value))
for v in results.all_page_specific_values
if (interaction_record == '' or v.tir_label == interaction_record)
))
def _GetEmptyResults():
return {'v8_gc_incremental_marking': ('ms', 0.0),
'v8_gc_incremental_marking_average': ('ms', 0.0),
'v8_gc_incremental_marking_count': ('count', 0),
'v8_gc_incremental_marking_max': ('ms', 0.0),
'v8_gc_incremental_marking_idle_deadline_overrun': ('ms', 0.0),
'v8_gc_incremental_marking_outside_idle': ('ms', 0.0),
'v8_gc_incremental_marking_percentage_idle': ('idle%', 0.0),
'v8_gc_finalize_incremental': ('ms', 0.0),
'v8_gc_finalize_incremental_average': ('ms', 0.0),
'v8_gc_finalize_incremental_count': ('count', 0),
'v8_gc_finalize_incremental_max': ('ms', 0.0),
'v8_gc_finalize_incremental_idle_deadline_overrun': ('ms', 0.0),
'v8_gc_finalize_incremental_outside_idle': ('ms', 0.0),
'v8_gc_finalize_incremental_percentage_idle': ('idle%', 0.0),
'v8_gc_finalize_incremental_reduce_memory': ('ms', 0.0),
'v8_gc_finalize_incremental_reduce_memory_average': ('ms', 0.0),
'v8_gc_finalize_incremental_reduce_memory_count': ('count', 0),
'v8_gc_finalize_incremental_reduce_memory_max': ('ms', 0.0),
'v8_gc_finalize_incremental_reduce_memory_idle_deadline_overrun':
('ms', 0.0),
'v8_gc_finalize_incremental_reduce_memory_outside_idle': ('ms', 0.0),
'v8_gc_finalize_incremental_reduce_memory_percentage_idle':
('idle%', 0.0),
'v8_gc_mark_compactor': ('ms', 0.0),
'v8_gc_mark_compactor_average': ('ms', 0.0),
'v8_gc_mark_compactor_count': ('count', 0),
'v8_gc_mark_compactor_max': ('ms', 0.0),
'v8_gc_mark_compactor_idle_deadline_overrun': ('ms', 0.0),
'v8_gc_mark_compactor_outside_idle': ('ms', 0.0),
'v8_gc_mark_compactor_percentage_idle': ('idle%', 0.0),
'v8_gc_scavenger': ('ms', 0.0),
'v8_gc_scavenger_average': ('ms', 0.0),
'v8_gc_scavenger_count': ('count', 0),
'v8_gc_scavenger_max': ('ms', 0.0),
'v8_gc_scavenger_idle_deadline_overrun': ('ms', 0.0),
'v8_gc_scavenger_outside_idle': ('ms', 0.0),
'v8_gc_scavenger_percentage_idle': ('idle%', 0.0),
'v8_gc_total': ('ms', 0.0),
'v8_gc_total_idle_deadline_overrun': ('ms', 0.0),
'v8_gc_total_outside_idle': ('ms', 0.0)}
|
