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Run results for:
Date.now() vs Performance.measure()
Performance measure can be slow
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=497410" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0
Browser:
Firefox 121
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Date.now
1.3M/s
performance.mark
367K/s
performance.mark + performance.measure
28/s
View exact numbers
Test name
Executions per second
✓
Date.now
1,340,554 Ops/sec
performance.mark
366,560 Ops/sec
performance.mark + performance.measure
28 Ops/sec
Script Preparation code:
var times = [];
Tests:
performance.mark
var i = Math.random() + '' + Date.now(); performance.mark(i + 'start'); performance.mark(i + 'end' );
Date.now
var i = Math.random() + '' + Date.now(); times.push(Date.now() + 'start' + i); times.push(Date.now() + 'end' + i);
performance.mark + performance.measure
var i = Math.random() + '' + Date.now(); performance.mark(i + 'start'); performance.mark(i + 'end' ); performance.measure(i, i + 'start', i + 'end')