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062f8e3730
All API introduced in this PR are compliant with web [performance-timeline](https://w3c.github.io/performance-timeline) spec. "performance-timeline" is listed as supported web spec in the doc https://nodejs.org/docs/latest/api/perf_hooks.html#perf_hooks_performance_measurement_apis. Changes summary: 1. Add new supported wpt test subsets: user-timing and performance-timeline. 2. Add support for `Performance.getEntries`, `Performance.getEntriesByName` and `Performance.getEntriesByType` to synchronously fetch buffered performance entries. This means the user should invoke `Performance.clearMarks` and `Performance.clearMeasures` to clear buffered entries to prevent from those entries been kept alive forever. 3. Add support (again after https://github.com/nodejs/node/pull/37136) for `buffered` flags for `PerformanceObserver`. 3. Fixes `PerformanceMark` and `PerformanceMeasure` wpt compliance issues. 4. Only user-created performance entries will be buffered globally. This behavior should be compliant with https://w3c.github.io/timing-entrytypes-registry/#registry. With the new ability to fetch user-created performance entries synchronously, the issues raised in https://github.com/nodejs/diagnostics/issues/464#issuecomment-861920116 could also be fixed. PR-URL: https://github.com/nodejs/node/pull/39297 Reviewed-By: James M Snell <jasnell@gmail.com>
39 lines
870 B
JavaScript
39 lines
870 B
JavaScript
'use strict';
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const {
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ObjectDefineProperty,
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} = primordials;
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const {
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constants,
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} = internalBinding('performance');
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const { PerformanceEntry } = require('internal/perf/performance_entry');
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const { PerformanceObserver } = require('internal/perf/observe');
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const {
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PerformanceMark,
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PerformanceMeasure,
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} = require('internal/perf/usertiming');
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const { InternalPerformance } = require('internal/perf/performance');
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const {
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createHistogram
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} = require('internal/histogram');
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const monitorEventLoopDelay = require('internal/perf/event_loop_delay');
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module.exports = {
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PerformanceEntry,
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PerformanceMark,
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PerformanceMeasure,
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PerformanceObserver,
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monitorEventLoopDelay,
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createHistogram,
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performance: new InternalPerformance(),
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};
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ObjectDefineProperty(module.exports, 'constants', {
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configurable: false,
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enumerable: true,
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value: constants
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});
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