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Unified Diff: tools/telemetry/telemetry/web_perf/metrics/v8_gc_latency_unittest.py

Issue 1647513002: Delete tools/telemetry. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 11 months ago
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Index: tools/telemetry/telemetry/web_perf/metrics/v8_gc_latency_unittest.py
diff --git a/tools/telemetry/telemetry/web_perf/metrics/v8_gc_latency_unittest.py b/tools/telemetry/telemetry/web_perf/metrics/v8_gc_latency_unittest.py
deleted file mode 100644
index 03c850a225b16c659962ef5449b2d90cd83b04a7..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/web_perf/metrics/v8_gc_latency_unittest.py
+++ /dev/null
@@ -1,445 +0,0 @@
-# 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)}
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