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timers: refactor to use optional chaining #36767

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timers: refactor to use optional chaining #36767

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Lxxyx
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@Lxxyx Lxxyx commented Jan 4, 2021

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added the timers Issues and PRs related to the timers subsystem / setImmediate, setInterval, setTimeout. label Jan 4, 2021
@aduh95 aduh95 added the needs-benchmark-ci PR that need a benchmark CI run. label Jan 4, 2021
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aduh95 commented Jan 5, 2021

Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/874/console

No regressions or improvements 
                                                              confidence improvement accuracy (*)    (**)   (***)
 timers/timers-cancel-pooled.js n=5000000                                    -0.96 %       ±9.53% ±12.68% ±16.51%
 timers/timers-cancel-unpooled.js direction='end' n=1000000                   4.08 %       ±7.54% ±10.04% ±13.07%
 timers/timers-cancel-unpooled.js direction='start' n=1000000                -2.81 %       ±5.86%  ±7.80% ±10.16%

Be aware that when doing many comparisons the risk of a false-positive
result increases. In this case there are 3 comparisons, you can thus
expect the following amount of false-positive results:
  0.15 false positives, when considering a   5% risk acceptance (*, **, ***),
  0.03 false positives, when considering a   1% risk acceptance (**, ***),
  0.00 false positives, when considering a 0.1% risk acceptance (***)

@aduh95 aduh95 added 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. and removed needs-benchmark-ci PR that need a benchmark CI run. labels Jan 5, 2021
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Jan 5, 2021
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CI: https://ci.nodejs.org/job/node-test-pull-request/35327/

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CI: https://ci.nodejs.org/job/node-test-pull-request/35332/

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CI: https://ci.nodejs.org/job/node-test-pull-request/35333/

@Lxxyx Lxxyx force-pushed the timers-refactor-use-optional-chaining branch from fbf05e0 to 738759a Compare January 8, 2021 11:33
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CI: https://ci.nodejs.org/job/node-test-pull-request/35399/

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CI: https://ci.nodejs.org/job/node-test-pull-request/35402/

jasnell pushed a commit that referenced this pull request Jan 9, 2021
@Lxxyx @jasnell
timers: refactor to use optional chaining
d8f535b 
PR-URL: #36767
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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jasnell commented Jan 9, 2021

Landed in d8f535b

@jasnell jasnell closed this Jan 9, 2021
@Lxxyx Lxxyx deleted the timers-refactor-use-optional-chaining branch January 11, 2021 10:43
danielleadams pushed a commit that referenced this pull request Jan 12, 2021
@Lxxyx @danielleadams
timers: refactor to use optional chaining
8e8b16f 
PR-URL: #36767
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@danielleadams danielleadams mentioned this pull request Jan 12, 2021
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As part of #37937, I tracked down a regression introduced by this one.

With optional chaining:

Screenshot 2021-04-15 at 12 07 40

Without optional chaining:

Screenshot 2021-04-15 at 12 07 51

@mcollina mcollina mentioned this pull request Apr 15, 2021
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targos pushed a commit that referenced this pull request May 25, 2021
@Lxxyx @targos
timers: refactor to use optional chaining
779aa31 
PR-URL: #36767
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@jasnell jasnell jasnell approved these changes

@aduh95 aduh95 aduh95 approved these changes

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