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* perf_hooks: complete overhaul of the implementationJames M Snell2021-02-221-11/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* src: emit 'params' instead of 'data' for NodeTracing.dataCollectedKelvin Jin2018-12-131-2/+2
| | | | | | | | | PR-URL: https://github.com/nodejs/node/pull/24949 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
* src: trace_event: secondary storage for metadataAli Ijaz Sheikh2018-10-121-5/+5
| | | | | | | | | | Metadata trace-events should be held in secondary storage so that they can be periodically reemitted. This change establishes the secondary storage and ensures that events are reemitted on each flush. PR-URL: https://github.com/nodejs/node/pull/20900 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
* inspector: enable Inspector JS API in workersEugene Ostroukhov2018-09-171-0/+1
| | | | | | PR-URL: https://github.com/nodejs/node/pull/22769 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>
* test: add test to dynamic enablement of trace-eventsAli Ijaz Sheikh2018-09-041-0/+58
PR-URL: https://github.com/nodejs/node/pull/22114 Reviewed-By: James M Snell <jasnell@gmail.com>
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