tracing/tracing/metrics/v8/gc_metric_test.html - catapult - Git at Google

 <!DOCTYPE html>
 <!--
 Copyright 2016 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.
 -->

 <link rel="import" href="/tracing/core/test_utils.html">
 <link rel="import" href="/tracing/extras/chrome/chrome_test_utils.html">
 <link rel="import" href="/tracing/extras/importer/trace_event_importer.html">
 <link rel="import" href="/tracing/metrics/v8/gc_metric.html">
 <link rel="import" href="/tracing/model/slice_group.html">
 <link rel="import" href="/tracing/value/histogram_set.html">

 <script>
 'use strict';

 tr.b.unittest.testSuite(function() {
   function createModel(start, end, slices) {
     return tr.e.chrome.ChromeTestUtils.newChromeModel(function(model) {
       const rendererProcess = model.rendererProcess;
       const mainThread = model.rendererMain;
       const group = mainThread.sliceGroup;
       for (const slice of slices) {
         group.pushSlice(tr.c.TestUtils.newSliceEx(slice));
       }
       group.createSubSlices();
       mainThread.updateBounds();
     });
   }

   function constructName(name, suffix) {
     return name + '_' + suffix;
   }

   function run(slices) {
     const histograms = new tr.v.HistogramSet();
     const startTime = slices.reduce(
         (acc, slice) => (Math.min(acc, slice.start)));
     const endTime = slices.reduce((acc, slice) => (Math.max(acc, slice.end)));
     const model = createModel(startTime - 1, endTime + 1, slices);
     tr.metrics.v8.gcMetric(histograms, model);
     return histograms;
   }

   test('topEvents', function() {
     const events = {
       'V8.GCCompactor': 'v8-gc-full-mark-compactor',
       'V8.GCFinalizeMC': 'v8-gc-latency-mark-compactor',
       'V8.GCFinalizeMCReduceMemory': 'v8-gc-memory-mark-compactor',
       'V8.GCIncrementalMarking': 'v8-gc-incremental-step',
       'V8.GCIncrementalMarkingFinalize': 'v8-gc-incremental-finalize',
       'V8.GCIncrementalMarkingStart': 'v8-gc-incremental-start',
       'V8.GCPhantomHandleProcessingCallback': 'v8-gc-phantom-handle-callback',
       'V8.GCScavenger': 'v8-gc-scavenger'
     };
     for (const [timelineName, telemetryName] of Object.entries(events)) {
       const slices = [
         {
           title: timelineName, args: {}, start: 100, end: 200,
           cpuStart: 100, cpuEnd: 200
         }
       ];
       const actual = run(slices);

       const value = actual.getHistogramNamed(telemetryName);
       assert.strictEqual(value.running.sum, 100);
       assert.strictEqual(value.numValues, 1);
       assert.strictEqual(value.average, 100);
       assert.strictEqual(value.running.max, 100);
       assert.closeTo(value.getApproximatePercentile(0.90), 100, 1);
     }
   });

   test('subEvents', function() {
     const slices = [
       {
         title: 'V8.GCFinalizeMC', args: {}, start: 100, end: 200,
         cpuStart: 100, cpuEnd: 200
       },
       {
         title: 'V8.GC_MC_MARK', args: {}, start: 110, end: 190,
         cpuStart: 110, cpuEnd: 190
       },
     ];
     const actual = run(slices);
     const telemetryName = 'v8-gc-latency-mark-compactor-mark';
     const value = actual.getHistogramNamed(telemetryName);
     assert.strictEqual(value.average, 80);
     assert.strictEqual(value.running.max, 80);
     assert.closeTo(value.getApproximatePercentile(0.90), 80, 1);
   });

   test('total', function() {
     const slices = [
       {
         title: 'V8.GCFinalizeMC', args: {}, start: 100, end: 200,
         cpuStart: 100, cpuEnd: 200
       },
       {
         title: 'V8.GCIncrementalMarking', args: {}, start: 210, end: 290,
         cpuStart: 210, cpuEnd: 290
       }
     ];
     const actual = run(slices);

     const value = actual.getHistogramNamed('v8-gc-total');
     assert.strictEqual(value.running.sum, 180);
     assert.strictEqual(value.numValues, 2);
     assert.strictEqual(value.average, 90);
     assert.strictEqual(value.running.max, 100);
   });

   test('percentageInV8Execute', function() {
     const slices = [
       {
         title: 'V8.Execute',
         args: {}, start: 100, end: 200,
         cpuStart: 100, cpuEnd: 200
       },
       {
         title: 'V8.GCFinalizeMC', args: {}, start: 110, end: 190,
         cpuStart: 110, cpuEnd: 190
       },
       {
         title: 'V8.GCFinalizeMC', args: {}, start: 210, end: 220,
         cpuStart: 210, cpuEnd: 220
       }
     ];
     const actual = run(slices);
     const value = actual.getHistogramNamed(
         'v8-gc-latency-mark-compactor_percentage_in_v8_execute');
     assert.strictEqual(value.average,
         (190 - 110) / ((190 - 110) + (220 - 210)));
   });

   test('markCompactorMutatorUtilization', function() {
     const slices = [
       {
         title: 'V8.GCIncrementalMarkingStart',
         args: {}, start: 100, end: 110,
         cpuStart: 100, cpuEnd: 110
       },
       {
         title: 'V8.GCIncrementalMarking',
         args: {}, start: 150, end: 160,
         cpuStart: 150, cpuEnd: 160
       },
       {
         title: 'V8.GCIncrementalMarkingFinalize',
         args: {}, start: 200, end: 220,
         cpuStart: 200, cpuEnd: 220
       },
       {
         title: 'V8.GCFinalizeMC',
         args: {}, start: 250, end: 300,
         cpuStart: 250, cpuEnd: 300
       }
     ];
     const histograms = run(slices);
     const mmu = histograms.getHistogramNamed(
         'v8-gc-mark-compactor-mmu-100ms_window');
     assert.closeTo(0.3, mmu.min, 1e-3);
   });

   test('markCompactorSummary', function() {
     const slices = [
       {
         title: 'V8.GCMarkCompactorSummary',
         args: {'duration': 3.1},
         start: 100, end: 100,
         cpuStart: 100, cpuEnd: 100
       },
     ];
     const histograms = run(slices);
     const markCompactor = histograms.getHistogramNamed(
         'v8-gc-mark-compactor');
     assert.closeTo(3.1, markCompactor.sum, 1e-3);
   });
 });
 </script>
	<!DOCTYPE html>
	<!--
	Copyright 2016 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.
	-->

	<link rel="import" href="/tracing/core/test_utils.html">
	<link rel="import" href="/tracing/extras/chrome/chrome_test_utils.html">
	<link rel="import" href="/tracing/extras/importer/trace_event_importer.html">
	<link rel="import" href="/tracing/metrics/v8/gc_metric.html">
	<link rel="import" href="/tracing/model/slice_group.html">
	<link rel="import" href="/tracing/value/histogram_set.html">

	<script>
	'use strict';

	tr.b.unittest.testSuite(function() {
	function createModel(start, end, slices) {
	return tr.e.chrome.ChromeTestUtils.newChromeModel(function(model) {
	const rendererProcess = model.rendererProcess;
	const mainThread = model.rendererMain;
	const group = mainThread.sliceGroup;
	for (const slice of slices) {
	group.pushSlice(tr.c.TestUtils.newSliceEx(slice));
	}
	group.createSubSlices();
	mainThread.updateBounds();
	});
	}

	function constructName(name, suffix) {
	return name + '_' + suffix;
	}

	function run(slices) {
	const histograms = new tr.v.HistogramSet();
	const startTime = slices.reduce(
	(acc, slice) => (Math.min(acc, slice.start)));
	const endTime = slices.reduce((acc, slice) => (Math.max(acc, slice.end)));
	const model = createModel(startTime - 1, endTime + 1, slices);
	tr.metrics.v8.gcMetric(histograms, model);
	return histograms;
	}

	test('topEvents', function() {
	const events = {
	'V8.GCCompactor': 'v8-gc-full-mark-compactor',
	'V8.GCFinalizeMC': 'v8-gc-latency-mark-compactor',
	'V8.GCFinalizeMCReduceMemory': 'v8-gc-memory-mark-compactor',
	'V8.GCIncrementalMarking': 'v8-gc-incremental-step',
	'V8.GCIncrementalMarkingFinalize': 'v8-gc-incremental-finalize',
	'V8.GCIncrementalMarkingStart': 'v8-gc-incremental-start',
	'V8.GCPhantomHandleProcessingCallback': 'v8-gc-phantom-handle-callback',
	'V8.GCScavenger': 'v8-gc-scavenger'
	};
	for (const [timelineName, telemetryName] of Object.entries(events)) {
	const slices = [
	{
	title: timelineName, args: {}, start: 100, end: 200,
	cpuStart: 100, cpuEnd: 200
	}
	];
	const actual = run(slices);

	const value = actual.getHistogramNamed(telemetryName);
	assert.strictEqual(value.running.sum, 100);
	assert.strictEqual(value.numValues, 1);
	assert.strictEqual(value.average, 100);
	assert.strictEqual(value.running.max, 100);
	assert.closeTo(value.getApproximatePercentile(0.90), 100, 1);
	}
	});

	test('subEvents', function() {
	const slices = [
	{
	title: 'V8.GCFinalizeMC', args: {}, start: 100, end: 200,
	cpuStart: 100, cpuEnd: 200
	},
	{
	title: 'V8.GC_MC_MARK', args: {}, start: 110, end: 190,
	cpuStart: 110, cpuEnd: 190
	},
	];
	const actual = run(slices);
	const telemetryName = 'v8-gc-latency-mark-compactor-mark';
	const value = actual.getHistogramNamed(telemetryName);
	assert.strictEqual(value.average, 80);
	assert.strictEqual(value.running.max, 80);
	assert.closeTo(value.getApproximatePercentile(0.90), 80, 1);
	});

	test('total', function() {
	const slices = [
	{
	title: 'V8.GCFinalizeMC', args: {}, start: 100, end: 200,
	cpuStart: 100, cpuEnd: 200
	},
	{
	title: 'V8.GCIncrementalMarking', args: {}, start: 210, end: 290,
	cpuStart: 210, cpuEnd: 290
	}
	];
	const actual = run(slices);

	const value = actual.getHistogramNamed('v8-gc-total');
	assert.strictEqual(value.running.sum, 180);
	assert.strictEqual(value.numValues, 2);
	assert.strictEqual(value.average, 90);
	assert.strictEqual(value.running.max, 100);
	});

	test('percentageInV8Execute', function() {
	const slices = [
	{
	title: 'V8.Execute',
	args: {}, start: 100, end: 200,
	cpuStart: 100, cpuEnd: 200
	},
	{
	title: 'V8.GCFinalizeMC', args: {}, start: 110, end: 190,
	cpuStart: 110, cpuEnd: 190
	},
	{
	title: 'V8.GCFinalizeMC', args: {}, start: 210, end: 220,
	cpuStart: 210, cpuEnd: 220
	}
	];
	const actual = run(slices);
	const value = actual.getHistogramNamed(
	'v8-gc-latency-mark-compactor_percentage_in_v8_execute');
	assert.strictEqual(value.average,
	(190 - 110) / ((190 - 110) + (220 - 210)));
	});

	test('markCompactorMutatorUtilization', function() {
	const slices = [
	{
	title: 'V8.GCIncrementalMarkingStart',
	args: {}, start: 100, end: 110,
	cpuStart: 100, cpuEnd: 110
	},
	{
	title: 'V8.GCIncrementalMarking',
	args: {}, start: 150, end: 160,
	cpuStart: 150, cpuEnd: 160
	},
	{
	title: 'V8.GCIncrementalMarkingFinalize',
	args: {}, start: 200, end: 220,
	cpuStart: 200, cpuEnd: 220
	},
	{
	title: 'V8.GCFinalizeMC',
	args: {}, start: 250, end: 300,
	cpuStart: 250, cpuEnd: 300
	}
	];
	const histograms = run(slices);
	const mmu = histograms.getHistogramNamed(
	'v8-gc-mark-compactor-mmu-100ms_window');
	assert.closeTo(0.3, mmu.min, 1e-3);
	});

	test('markCompactorSummary', function() {
	const slices = [
	{
	title: 'V8.GCMarkCompactorSummary',
	args: {'duration': 3.1},
	start: 100, end: 100,
	cpuStart: 100, cpuEnd: 100
	},
	];
	const histograms = run(slices);
	const markCompactor = histograms.getHistogramNamed(
	'v8-gc-mark-compactor');
	assert.closeTo(3.1, markCompactor.sum, 1e-3);
	});
	});
	</script>