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Run results for:
ArrayBuffer vs JSON serialization
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<iframe src="https://measurethat.net/Embed?id=585507" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 18
Operating system:
iOS 18.3
Device Platform:
Mobile
Date tested:
one year ago
Benchmark engine:
Benchmark.js
ArrayBuffer serialization
46K/s
JSON serialization
2K/s
View exact numbers
Test name
Executions per second
✓
ArrayBuffer serialization
46,288 Ops/sec
JSON serialization
2,381 Ops/sec
Tests:
JSON serialization
const arr = Array.from({ length: 5000 }).map(() => Math.random()); const serialized = JSON.stringify(arr); const deserialized = JSON.parse(serialized); deserialized.map(x => 0.0); const serializedAgain = JSON.stringify(deserialized);
ArrayBuffer serialization
const arr = Array.from({ length: 5000 }).map(() => Math.random()); const buffer = new ArrayBuffer(arr.length * 4); const view = new Float32Array(buffer, 0, 4); view.map((_, idx) => arr[idx]); view.map(() => 0.0); const view2 = new Float32Array(buffer, 0, 4);