Benchmark: array vs float32array performance test

Script Preparation code:

function getRandomInt(max) {
    return Math.floor(Math.random() * max);
}

var a = [...new Array(10000)].map(_ => getRandomInt(1000000));
var ta = (new Float32Array(10000)).map(_ => getRandomInt(1000000));

Tests:

array sort
a.sort();
typedArray sort
ta.sort();
array i/o
for (let i = 0; i < 10000; ++i) { a[i] = a[i] + 1; }
typedArray i/o
for (let i = 0; i < 10000; ++i) { ta[i] = ta[i] + 1; }
typedArray i/o w convert back to array
for (let i = 0; i < 10000; ++i) { ta[i] = ta[i] + 1; } let tb = Array.from(ta);
create arrays
const a = []; for (let i = 0; i < 10000; ++i) { a.push([i]); }
create typed arrays
const a = []; for (let i = 0; i < 10000; ++i) { a.push(new Float32Array([i])); }
create typed arrays in typed array
const a = new Float32Array(10000); for (let i = 0; i < 10000; ++i) { a[i] = new Float32Array([i]); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array sort
typedArray sort
array i/o
typedArray i/o
typedArray i/o w convert back to array
create arrays
create typed arrays
create typed arrays in typed array

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 17 days ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:124.0) Gecko/20100101 Firefox/124.0

Browser/OS: Firefox 124 on Linux

View result in a separate tab

Test name	Executions per second
array sort	3184.9 Ops/sec
typedArray sort	3223.7 Ops/sec
array i/o	37462.3 Ops/sec
typedArray i/o	59403.7 Ops/sec
typedArray i/o w convert back to array	5145.0 Ops/sec
create arrays	3975.9 Ops/sec
create typed arrays	596.6 Ops/sec
create typed arrays in typed array	99.2 Ops/sec

array vs float32array performance test (version: 4)

Comparing performance of: array sort vs typedArray sort vs array i/o vs typedArray i/o vs typedArray i/o w convert back to array vs create arrays vs create typed arrays vs create typed arrays in typed array

Created: one month ago by: Registered User

Jump to the latest result

array sort

typedArray sort

array i/o

typedArray i/o

typedArray i/o w convert back to array

create arrays

create typed arrays

create typed arrays in typed array

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A