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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>
41 lines
727 B
JavaScript
41 lines
727 B
JavaScript
'use strict';
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const common = require('../common');
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const {
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PerformanceObserver,
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performance: {
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timerify,
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},
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} = require('perf_hooks');
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const assert = require('assert');
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const {
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setTimeout: sleep
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} = require('timers/promises');
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let check = false;
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async function doIt() {
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await sleep(100);
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check = true;
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return check;
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}
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const obs = new PerformanceObserver(common.mustCall((list) => {
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const entry = list.getEntries()[0];
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assert.strictEqual(entry.name, 'doIt');
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assert(entry.duration > 100);
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assert(check);
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obs.disconnect();
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}));
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obs.observe({ type: 'function' });
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const timerified = timerify(doIt);
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const res = timerified();
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assert(res instanceof Promise);
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res.then(common.mustCall(assert));
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