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fs: improve error performance for fdatasyncSync#49898

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nodejs-github-bot merged 4 commits intonodejs:mainfrom
pluris:perf/fdatasync
Oct 4, 2023
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fs: improve error performance for fdatasyncSync#49898
nodejs-github-bot merged 4 commits intonodejs:mainfrom
pluris:perf/fdatasync

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@pluris pluris commented Sep 27, 2023 •
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                                                      confidence improvement accuracy (*)   (**)   (***)
fs/bench_fdatasyncSync.js n=10000 type='existing'            ***      6.39 %       ±1.85% ±2.48%  ±3.25%
fs/bench_fdatasyncSync.js n=10000 type='non-existing'        ***    116.11 %       ±6.89% ±9.21% ±12.08%

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 (***)

Refs: nodejs/performance#106

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nodejs-github-bot commented Sep 27, 2023

CI: https://ci.nodejs.org/job/node-test-pull-request/54302/

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I don't think we should introduce a seemingly new implementation by copying and repeating the original implementation & moving code to a new JS file which makes git blame harder to use. See #49593 (comment)

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anonrig commented Sep 30, 2023

Hey @pluris can you rebase this pull request? You'll see that sync.js file is now removed and merged into lib/fs.js

@pluris pluris force-pushed the perf/fdatasync branch 2 times, most recently from 358c67e to 78b27c0 Compare October 1, 2023 16:03
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pluris commented Oct 1, 2023

@anonrig I rebased and applied #49913.

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anonrig commented Oct 1, 2023

@anonrig I rebased and applied #49913.

Can you re-add the benchmark?

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pluris commented Oct 1, 2023

@anonrig I updated the description.

                                                      confidence improvement accuracy (*)   (**)   (***)
fs/bench_fdatasyncSync.js n=10000 type='existing'                     1.12 %       ±1.51% ±2.01%  ±2.62%
fs/bench_fdatasyncSync.js n=10000 type='non-existing'        ***    109.42 %       ±6.13% ±8.19% ±10.73%

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 (***)

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anonrig commented Oct 1, 2023

The benchmark you're running doesn't exist in main or in your pull request. Can you add the file to your pull request? :-) @pluris

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pluris commented Oct 1, 2023

@anonrig Oh, sorry. I added it again.
I think I did something wrong during the rebase process. 😅

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CI: https://ci.nodejs.org/job/node-test-pull-request/54446/

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pluris commented Oct 1, 2023

Oops, there was a part where the condition check was missing, so I modified it again and updated the benchmark.

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pluris commented Oct 2, 2023 •
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@joyeecheung GetValidatedFd() has also been removed here, as described in #49880 (explanation).

@pluris pluris requested a review from joyeecheung October 2, 2023 14:10
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CI: https://ci.nodejs.org/job/node-test-pull-request/54474/

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CI: https://ci.nodejs.org/job/node-test-pull-request/54512/

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@nodejs-github-bot nodejs-github-bot merged commit f7a160d into nodejs:main Oct 4, 2023
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Landed in f7a160d

This was referenced Oct 5, 2023
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@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
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fs: improve error performance for fdatasyncSync
e5be971 
PR-URL: nodejs#49898
Refs: nodejs/performance#106
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
@pluris pluris deleted the perf/fdatasync branch November 8, 2023 02:24
targos pushed a commit that referenced this pull request Nov 11, 2023
@targos
fs: improve error performance for fdatasyncSync
d7132d9 
PR-URL: #49898
Refs: nodejs/performance#106
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
@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
@debadree25
fs: improve error performance for fdatasyncSync
4b7fc22 
PR-URL: nodejs#49898
Refs: nodejs/performance#106
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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