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f3eb224c83
* Update the user timing implementation to conform to User Timing Level 3. * Reimplement user timing and timerify with pure JavaScript implementations * Simplify the C++ implementation for gc and http2 perf * Runtime deprecate additional perf entry properties in favor of the standard detail argument * Disable the `buffered` option on PerformanceObserver, all entries are queued and dispatched on setImmediate. Only entries with active observers are buffered. * This does remove the user timing and timerify trace events. Because the trace_events are still considered experimental, those can be removed without a deprecation cycle. They are removed to improve performance and reduce complexity. Old: `perf_hooks/usertiming.js n=100000: 92,378.01249733355` New: perf_hooks/usertiming.js n=100000: 270,393.5280638482` PR-URL: https://github.com/nodejs/node/pull/37136 Refs: https://github.com/nodejs/diagnostics/issues/464 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com>
121 lines
2.5 KiB
JavaScript
121 lines
2.5 KiB
JavaScript
'use strict';
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const {
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ObjectDefineProperties,
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ObjectDefineProperty,
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ObjectSetPrototypeOf,
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TypeError,
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} = primordials;
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const {
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timeOriginTimestamp,
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constants,
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} = internalBinding('performance');
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const {
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PerformanceEntry,
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now,
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} = require('internal/perf/perf');
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const { PerformanceObserver } = require('internal/perf/observe');
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const {
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PerformanceMark,
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mark,
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measure,
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clearMarks,
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} = require('internal/perf/usertiming');
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const {
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createHistogram
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} = require('internal/histogram');
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const eventLoopUtilization = require('internal/perf/event_loop_utilization');
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const monitorEventLoopDelay = require('internal/perf/event_loop_delay');
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const nodeTiming = require('internal/perf/nodetiming');
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const timerify = require('internal/perf/timerify');
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const { customInspectSymbol: kInspect } = require('internal/util');
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const { inspect } = require('util');
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class Performance {
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constructor() {
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// eslint-disable-next-line no-restricted-syntax
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throw new TypeError('Illegal constructor');
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}
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[kInspect](depth, options) {
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if (depth < 0) return this;
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const opts = {
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...options,
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depth: options.depth == null ? null : options.depth - 1
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};
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return `Performance ${inspect({
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nodeTiming: this.nodeTiming,
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timeOrigin: this.timeOrigin,
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}, opts)}`;
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}
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}
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class InternalPerformance {}
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InternalPerformance.prototype.constructor = Performance.prototype.constructor;
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ObjectSetPrototypeOf(InternalPerformance.prototype, Performance.prototype);
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ObjectDefineProperties(Performance.prototype, {
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clearMarks: {
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configurable: true,
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enumerable: false,
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value: clearMarks,
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},
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eventLoopUtilization: {
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configurable: true,
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enumerable: false,
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value: eventLoopUtilization,
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},
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mark: {
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configurable: true,
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enumerable: false,
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value: mark,
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},
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measure: {
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configurable: true,
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enumerable: false,
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value: measure,
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},
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nodeTiming: {
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configurable: true,
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enumerable: false,
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value: nodeTiming,
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},
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now: {
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configurable: true,
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enumerable: false,
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value: now,
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},
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timerify: {
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configurable: true,
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enumerable: false,
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value: timerify,
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},
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timeOrigin: {
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configurable: true,
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enumerable: true,
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value: timeOriginTimestamp,
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}
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});
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module.exports = {
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PerformanceEntry,
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PerformanceMark,
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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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