| Index: tracing/tracing/metrics/system_health/long_tasks_metric.html
|
| diff --git a/tracing/tracing/metrics/system_health/long_tasks_metric.html b/tracing/tracing/metrics/system_health/long_tasks_metric.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..c0270d8c8da4f9081c1aedfdc55847b6024d35bc
|
| --- /dev/null
|
| +++ b/tracing/tracing/metrics/system_health/long_tasks_metric.html
|
| @@ -0,0 +1,99 @@
|
| +<!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/metrics/metric_registry.html">
|
| +<link rel="import" href="/tracing/model/helpers/chrome_model_helper.html">
|
| +<link rel="import" href="/tracing/value/numeric.html">
|
| +<link rel="import" href="/tracing/value/value.html">
|
| +
|
| +<script>
|
| +'use strict';
|
| +
|
| +tr.exportTo('tr.metrics.sh', function() {
|
| + var LONG_TASK_MS = 50;
|
| +
|
| + // Anything longer than this should be so rare that its length beyond this is
|
| + // uninteresting.
|
| + var LONGEST_TASK_MS = 1000;
|
| +
|
| + var timeDurationInMs_smallerIsBetter =
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| + tr.v.Unit.byName.timeDurationInMs_smallerIsBetter;
|
| +
|
| + /**
|
| + * This helper function calls |cb| for each of the top-level tasks on the
|
| + * given thread in the given range whose duration is longer than LONG_TASK_MS.
|
| + *
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| + * @param {tr.model.Thread} thread
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| + * @param {tr.b.Range=} opt_range
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| + * @param {function()} cb
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| + * @param {Object=} opt_this
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| + */
|
| + function iterateLongTopLevelTasksOnThreadInRange(
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| + thread, opt_range, cb, opt_this) {
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| + thread.sliceGroup.topLevelSlices.forEach(function(slice) {
|
| + if (opt_range &&
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| + !opt_range.intersectsExplicitRangeExclusive(slice.start, slice.end))
|
| + return;
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| +
|
| + if (slice.duration < LONG_TASK_MS)
|
| + return;
|
| +
|
| + cb.call(opt_this, slice);
|
| + });
|
| + }
|
| +
|
| + /**
|
| + * This helper function calls |cb| for each of the main renderer threads in
|
| + * the model.
|
| + *
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| + * @param {tr.model.Model} model The model.
|
| + * @param {function()} cb Callback.
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| + * @param {Object=} opt_this Context object.
|
| + */
|
| + function iterateRendererMainThreads(model, cb, opt_this) {
|
| + var modelHelper = model.getOrCreateHelper(
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| + tr.model.helpers.ChromeModelHelper);
|
| + tr.b.dictionaryValues(modelHelper.rendererHelpers).forEach(
|
| + function(rendererHelper) {
|
| + if (!rendererHelper.mainThread)
|
| + return;
|
| + cb.call(opt_this, rendererHelper.mainThread);
|
| + });
|
| + }
|
| +
|
| + var LONG_TASK_NUMERIC_BUILDER = tr.v.NumericBuilder.createLinear(
|
| + tr.v.Unit.byName.timeDurationInMs_smallerIsBetter,
|
| + tr.b.Range.fromExplicitRange(LONG_TASK_MS, LONGEST_TASK_MS), 50);
|
| +
|
| + /**
|
| + * This metric directly measures long tasks on renderer main threads.
|
| + * This metric requires only the 'toplevel' tracing category.
|
| + */
|
| + function longTasksMetric(values, model) {
|
| + var longTaskNumeric = LONG_TASK_NUMERIC_BUILDER.build();
|
| + iterateRendererMainThreads(model, function(thread) {
|
| + iterateLongTopLevelTasksOnThreadInRange(
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| + thread, undefined, function(task) {
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| + longTaskNumeric.add(task.duration, task.stableId);
|
| + });
|
| + });
|
| + values.addValue(new tr.v.NumericValue(
|
| + 'long tasks', longTaskNumeric));
|
| + }
|
| +
|
| + tr.metrics.MetricRegistry.register(longTasksMetric);
|
| +
|
| + return {
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| + longTasksMetric: longTasksMetric,
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| + iterateLongTopLevelTasksOnThreadInRange:
|
| + iterateLongTopLevelTasksOnThreadInRange,
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| + iterateRendererMainThreads: iterateRendererMainThreads,
|
| + LONG_TASK_MS: LONG_TASK_MS,
|
| + LONGEST_TASK_MS: LONGEST_TASK_MS
|
| + };
|
| +});
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 1992303003:
Refactor hazardMetric (Closed)
Base URL: https://github.com/catapult-project/catapult.git@master