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perf_hooks: reduce overhead of new user timings #49914

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merged 2 commits into from
Oct 5, 2023
Merged

perf_hooks: reduce overhead of new user timings #49914

merged 2 commits into from
Oct 5, 2023

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H4ad
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@H4ad H4ad commented Sep 28, 2023 •
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Continuing the work started on nodejs/performance#109.

This PR should be landed after #49837.

                                                    confidence improvement accuracy (*)    (**)   (***)
perf_hooks/usertiming.js observe='all' n=100000            ***    351.28 %       ±9.79% ±13.17% ±17.46%
perf_hooks/usertiming.js observe='measure' n=100000        ***    436.41 %       ±8.94% ±12.03% ±15.93%

Be aware that when doing many comparisons the risk of a false-positive
result increases. In this case, there are 2 comparisons, you can thus
expect the following amount of false-positive results:
  0.10 false positives, when considering a   5% risk acceptance (*, **, ***),
  0.02 false positives, when considering a   1% risk acceptance (**, ***),
  0.00 false positives, when considering a 0.1% risk acceptance (***)

I will use the changes on the latest PR to keep this even simpler, so I will keep as draft for now.

cc @nodejs/performance

@nodejs-github-bot nodejs-github-bot added the needs-ci PRs that need a full CI run. label Sep 28, 2023
@H4ad H4ad force-pushed the perf/perf_hooks_usertiming branch from f6ff458 to 5fd5fad Compare October 1, 2023 14:29
@H4ad H4ad marked this pull request as ready for review October 1, 2023 14:30
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gj

@H4ad H4ad force-pushed the perf/perf_hooks_usertiming branch from df6db01 to 41a0fdf Compare October 1, 2023 16:16
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@anonrig anonrig added performance Issues and PRs related to the performance of Node.js. author ready PRs that have at least one approval, no pending requests for changes, and a CI started. request-ci Add this label to start a Jenkins CI on a PR. labels Oct 2, 2023
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@nodejs-github-bot nodejs-github-bot merged commit 0e507d3 into nodejs:main Oct 5, 2023
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@H4ad H4ad deleted the perf/perf_hooks_usertiming branch October 5, 2023 11:28
@RafaelGSS RafaelGSS mentioned this pull request Oct 9, 2023
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alexfernandez pushed a commit to alexfernandez/node that referenced this pull request Nov 1, 2023
@H4ad @alexfernandez
perf_hooks: reduce overhead of new user timings
1f61aa4 
PR-URL: nodejs#49914
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Stephen Belanger <[email protected]>
targos pushed a commit that referenced this pull request Nov 11, 2023
@H4ad @targos
perf_hooks: reduce overhead of new user timings
e8f024b 
PR-URL: #49914
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Stephen Belanger <[email protected]>
@targos targos mentioned this pull request Nov 12, 2023
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@juanarbol juanarbol mentioned this pull request Dec 6, 2023
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debadree25 pushed a commit to debadree25/node that referenced this pull request Apr 15, 2024
@H4ad @debadree25
perf_hooks: reduce overhead of new user timings
7665ea7 
PR-URL: nodejs#49914
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Stephen Belanger <[email protected]>
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@benjamingr benjamingr benjamingr approved these changes

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