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Run results for:
DataView vs TypedArray Float64sssssss
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<iframe src="https://measurethat.net/Embed?id=595889" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser:
Chrome 134
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
array[i] = i;
250837.5 Ops/sec
view.setFloat64(i, i)
286406.7 Ops/sec
array[i] = i; 2
250415.7 Ops/sec
view.setFloat64(i, i) 2
283994.7 Ops/sec
Script Preparation code:
var buffer1 = new ArrayBuffer(1024 * Float32Array.BYTES_PER_ELEMENT); var array = new Float32Array(buffer1); var buffer2 = new ArrayBuffer(1024 * Float32Array.BYTES_PER_ELEMENT); var view = new DataView(buffer2);
Tests:
array[i] = i;
for (let i = 0; i < 1024; i += 1) { if (i === 0) { array[i] = 1; } else { array[i] = array[i-1] + i;; } }
view.setFloat64(i, i)
for (let i = 0; i < 1024; i += 4) { if (i === 0) { view.setFloat32(i, 1); } else { view.setFloat32(i, view.getFloat32(i - 1) + i); } }
array[i] = i; 2
for (let i = 0; i < 1024; i += 1) { if (i === 0) { array[i] = 1; } else { array[i] = array[i-1] + i; } }
view.setFloat64(i, i) 2
for (let i = 0; i < 1024; i += 4) { if (i === 0) { view.setFloat32(i, 1); } else { view.setFloat32(i, view.getFloat32(i - 1) + i); } }