James M Snell f3eb224c83 perf_hooks: complete overhaul of the implementation ... * 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>		2021-02-22 08:46:11 -08:00
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bench-eventlooputil.js	tools: enable no-unused-expressions lint rule	2020-12-07 20:33:45 +01:00
usertiming.js	perf_hooks: complete overhaul of the implementation	2021-02-22 08:46:11 -08:00