MeasureThat.net

Run results for: Float32 vs Float64

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36 Edg/118.0.2088.69
Chrome 118
Windows
Desktop
one year ago
Test name Executions per second
create f32 23331.6 Ops/sec
create f64 13035.7 Ops/sec
set f32 6549.1 Ops/sec
set f64 2429.4 Ops/sec
iterate and set f32 5.8 Ops/sec
iterate and set f64 5.8 Ops/sec
add and multiply f32 4.3 Ops/sec
add and multiply f64 4.5 Ops/sec
Script Preparation code:
​x
 
var length = 1e6;
​
var f32_a = Float32Array.from({length}, Math.random);
var f32_b = Float32Array.from({length}, Math.random);
​
var f64_a = Float64Array.from({length}, Math.random);
var f64_b = Float64Array.from({length}, Math.random);
Tests:

  • create f32

     
    new Float32Array(length);

  • create f64

     
    new Float64Array(length);

  • set f32

     
    f32_a.set(f32_b);

  • set f64

     
    f64_a.set(f64_b);

  • iterate and set f32

     
    for (let i = 0; i < length; i++) {
      f32_a[i] = f32_b[i];
    }

  • iterate and set f64

     
    for (let i = 0; i < length; i++) {
      f64_a[i] = f64_b[i];
    }

  • add and multiply f32

     
    for (let i = 0; i < length; i++) {
      f32_a[i] = f32_b[i] + f32_b[i] * 2;
    }

  • add and multiply f64

     
    for (let i = 0; i < length; i++) {
      f64_a[i] = f64_b[i] + f64_b[i] * 2;
    }