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perf_hooks: reduce overhead of new resource timings #49837

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merged 2 commits into from
Sep 30, 2023

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@H4ad H4ad commented Sep 24, 2023

Continuing the work started on nodejs/performance#109.

This PR should be landed after #49803.

                                                         confidence improvement accuracy (*)    (**)   (***)
perf_hooks/resourcetiming.js observe='resource' n=100000        ***   1086.23 %      ±40.80% ±54.98% ±72.99%

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

I want to use the symbol kSkipThrow in other classes around the NodeJS codebase, someone had some idea where I should put it? Or create a new symbol and reuse it when possible?

Right now, we have this symbol being used on perf_hooks but there is also an identical symbol on webstreams, so maybe we can put it in a higher module and import it around the node, I initially thought to put it inside errors, since we will always use it together with ERR_ILLEGAL_CONSTRUCTOR.

I will reuse the same symbol only when it inherits some class that exports a symbol, otherwise, I will create a new one.

/cc @nodejs/performance

@nodejs-github-bot nodejs-github-bot added the needs-ci PRs that need a full CI run. label Sep 24, 2023
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I want to use the symbol kSkipThrow in other classes around the NodeJS codebase, someone had some idea where I should put it? Or create a new symbol and reuse it when possible?

I would use a new symbol for each constructor so that if other parts in the code base need to create something in a way not exposed to userland they need to explicitly import it. We use this pattern in many other places like event_target too.

@H4ad H4ad force-pushed the perf/perf_hooks_resource_timings branch from 42d7511 to cdcfc29 Compare September 28, 2023 00:09
@H4ad H4ad marked this pull request as ready for review September 28, 2023 00:12
@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 Sep 30, 2023
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 30, 2023
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@aduh95 aduh95 added the commit-queue Add this label to land a pull request using GitHub Actions. label Sep 30, 2023
@nodejs-github-bot nodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Sep 30, 2023
@nodejs-github-bot nodejs-github-bot merged commit e6e320e into nodejs:main Sep 30, 2023
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Landed in e6e320e

GeoffreyBooth pushed a commit to GeoffreyBooth/node that referenced this pull request Oct 1, 2023
PR-URL: nodejs#49837
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
@H4ad H4ad deleted the perf/perf_hooks_resource_timings branch October 1, 2023 13:27
alexfernandez pushed a commit to alexfernandez/node that referenced this pull request Nov 1, 2023
PR-URL: nodejs#49837
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
targos pushed a commit that referenced this pull request Nov 11, 2023
PR-URL: #49837
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
debadree25 pushed a commit to debadree25/node that referenced this pull request Apr 15, 2024
PR-URL: nodejs#49837
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
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7 participants