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Run results for:
array vs Float64Array vs Float32Array
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<iframe src="https://measurethat.net/Embed?id=586873" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
array reverse
193504.5 Ops/sec
Float64Array reverse
547837.2 Ops/sec
array i/o
148725.2 Ops/sec
Float64Array i/o
294571.8 Ops/sec
Float32Array reverse
552442.6 Ops/sec
Float32Array i/o
295891.5 Ops/sec
Script Preparation code:
var a = [...Array(10000)].map(_ => Math.random()); var ta = (new Float64Array(10000)).map(_ => Math.random()); var tb = (new Float32Array(10000)).map(_ => Math.random());
Tests:
array reverse
a.reverse();
Float64Array reverse
ta.reverse();
array i/o
for (let i = 0; i < 10000; ++i) a[i] = a[i] + 1;
Float64Array i/o
for (let i = 0; i < 10000; ++i) ta[i] = ta[i] + 1;
Float32Array reverse
tb.reverse();
Float32Array i/o
for (let i = 0; i < 10000; ++i) tb[i] = tb[i] + 1;