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lib: make queueMicrotask faster #27032

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lib: make queueMicrotask faster #27032

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apapirovski
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@apapirovski apapirovski commented Mar 31, 2019 •
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  1. async_hooks: improve AsyncResource performance
    Accessing properties behind a symbol is generally quite expensive and so is emitInit, only do both when actually required.

  2. lib: make queueMicrotask faster
    No longer create an additional scope within queueMicrotask in order to improve performance.

CI: https://ci.nodejs.org/job/node-test-pull-request/22078/
Benchmark CI: https://ci.nodejs.org/job/benchmark-node-micro-benchmarks/313/

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

@apapirovski
async_hooks: improve AsyncResource performance
f8375be 
Accessing symbols is generally quite expensive and so is emitInit,
only do both when actually required.
@apapirovski
lib: make queueMicrotask faster
1ddefe3 
No longer create an additional scope within queueMicrotask
in order to improve performance.
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Lite-CI: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/3126

@nodejs-github-bot nodejs-github-bot added async_hooks Issues and PRs related to the async hooks subsystem. process Issues and PRs related to the process subsystem. labels Mar 31, 2019
devsnek
devsnek approved these changes Mar 31, 2019
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very nice 👍

@apapirovski apapirovski changed the title make queueMicrotask faster lib: make queueMicrotask faster Mar 31, 2019
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CI: https://ci.nodejs.org/job/node-test-pull-request/22078/

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CI: https://ci.nodejs.org/job/node-test-pull-request/22081/

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refack commented Mar 31, 2019

Benchmark (job 313) results:

16:03:39                                              confidence improvement accuracy (*)   (**)  (***)
16:03:39  process/queue-microtask-breadth.js n=400000        ***      7.53 %       ±1.34% ±1.76% ±2.27%
16:03:39  process/queue-microtask-depth.js n=1200000                 -0.63 %       ±1.48% ±1.95% ±2.51%

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Trott commented Apr 1, 2019

Don't forget to run test/benchmark/test-benchmark-process.js with these changes.

@BridgeAR BridgeAR added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Apr 1, 2019
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BridgeAR commented Apr 1, 2019

Don't forget to run test/benchmark/test-benchmark-process.js with these changes.

The test will continue to pass.

This was referenced Apr 2, 2019
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CI: https://ci.nodejs.org/job/node-test-pull-request/22194/

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danbev commented Apr 5, 2019

Landed in d3d4e10, and 2c49e8b.

@danbev danbev closed this Apr 5, 2019
danbev pushed a commit that referenced this pull request Apr 5, 2019
@apapirovski @danbev
async_hooks: improve AsyncResource performance
d3d4e10 
Accessing symbols is generally quite expensive and so is emitInit,
only do both when actually required.

PR-URL: #27032
Reviewed-By: Gus Caplan <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: James M Snell <[email protected]>
danbev pushed a commit that referenced this pull request Apr 5, 2019
@apapirovski @danbev
lib: make queueMicrotask faster
2c49e8b 
No longer create an additional scope within queueMicrotask
in order to improve performance.

PR-URL: #27032
Reviewed-By: Gus Caplan <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: James M Snell <[email protected]>
This was referenced Apr 23, 2019
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This was referenced Apr 23, 2019
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@BridgeAR BridgeAR BridgeAR approved these changes

@devsnek devsnek devsnek approved these changes

@jasnell jasnell jasnell approved these changes

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