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perf_hooks: allow omitted parameters in 'performance.measure' #32651

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@himself65 himself65 commented Apr 4, 2020

FIxes: #32647
Refs: https://www.w3.org/TR/user-timing-2/#measure-method

const { PerformanceObserver, performance } = require('perf_hooks');

const obs = new PerformanceObserver((items) => {
  console.log(items.getEntries()[0].duration);
  performance.clearMarks();
});
obs.observe({ entryTypes: ['measure'] });
performance.measure('Start to Now');

performance.mark('A');
doSomeLongRunningProcess(() => {
  performance.measure('A to Now', 'A');

  performance.mark('B');
  performance.measure('A to B', 'A', 'B');
});
Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • documentation is changed or added
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. perf_hooks Issues and PRs related to the implementation of the Performance Timing API. labels Apr 4, 2020
@himself65 himself65 marked this pull request as ready for review April 4, 2020 10:22
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This probably needs a changes: entry for the documentation and tests.

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This probably needs a changes: entry for the documentation and tests.

I have no idea how to add a test for these additions, any suggestions?

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This probably needs a changes: entry for the documentation and tests.

I have no idea how to add a test for these additions, any suggestions?

Not really, because it isn’t quite obvious to me what exactly these changes end up doing.

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himself65 commented Apr 4, 2020

Not really, because it isn’t quite obvious to me what exactly these changes end up doing.

// test.js
const { PerformanceObserver, performance } = require('perf_hooks');

const obs = new PerformanceObserver((items) => {
  console.log(items.getEntries()[0].duration);
  performance.clearMarks();
});
obs.observe({ entryTypes: ['measure'] });

setTimeout(() => {
  performance.measure('Foo');
  performance.mark('B')
  performance.measure('to B', 'nodeStart', 'B');
}, 1000);
./Release/node.exe test.js
1029.4472
1033.832401

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addaleax commented Apr 4, 2020

@himself65 I guess that example could serve as the basis for a test then?

@himself65 himself65 force-pushed the 20200404-perf_hooks branch 3 times, most recently from bf42542 to b420270 Compare April 4, 2020 12:00
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@himself65 himself65 force-pushed the 20200404-perf_hooks branch 3 times, most recently from 0b38140 to f85faa4 Compare April 5, 2020 18:33
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LGTM with tests added 👍

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@himself65 himself65 force-pushed the 20200404-perf_hooks branch 2 times, most recently from e9ec51a to 25bd57d Compare April 6, 2020 15:30
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Make `startMark` and `endMark` parameters optional.
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@himself65 himself65 added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Apr 9, 2020
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@himself65 himself65 self-assigned this Apr 10, 2020
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himself65 commented Apr 10, 2020

I think CI should all green but

image

They are old CI state, maybe some bug here

himself65 added a commit to himself65/node that referenced this pull request Apr 10, 2020
Make `startMark` and `endMark` parameters optional.

PR-URL: nodejs#32651
Fixes: nodejs#32647
Refs: https://www.w3.org/TR/user-timing-2/#measure-method
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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Landed in d0a3bf1

@himself65 himself65 closed this Apr 10, 2020
@himself65 himself65 deleted the 20200404-perf_hooks branch April 10, 2020 10:19
targos pushed a commit that referenced this pull request Apr 12, 2020
Make `startMark` and `endMark` parameters optional.

PR-URL: #32651
Fixes: #32647
Refs: https://www.w3.org/TR/user-timing-2/#measure-method
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: James M Snell <[email protected]>
BethGriggs pushed a commit that referenced this pull request Apr 14, 2020
Make `startMark` and `endMark` parameters optional.

PR-URL: #32651
Fixes: #32647
Refs: https://www.w3.org/TR/user-timing-2/#measure-method
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: James M Snell <[email protected]>
targos pushed a commit that referenced this pull request Apr 22, 2020
Make `startMark` and `endMark` parameters optional.

PR-URL: #32651
Fixes: #32647
Refs: https://www.w3.org/TR/user-timing-2/#measure-method
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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perf_hooks: measure() should allow endMark to be omitted
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