Run results for: soa vs aos

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36

Browser: Chrome 83

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
soa	3.9 Ops/sec
aos	1.4 Ops/sec
soa mark II	3.9 Ops/sec

Script Preparation code:

var N = 1000000;

var x = [], y = [], z = [];

var xt = new Float32Array(1000000);
var yt = new Float32Array(1000000);
var zt = new Float32Array(1000000);

var vectors = [];

for(var i = 0; i < N; i++){
  x[i] = Math.random();
  y[i] = Math.random();
  z[i] = Math.random();
  
  xt[i] = x[i];
  yt[i] = y[i];
  zt[i] = z[i];
  
  vectors[i] = { x: x[i], y: y[i], z: z[i] };
}

var vector;

Tests:

soa
for (var i = 0, li=x.length; i < li; ++i) { x[i] *= 2; y[i] *= 2; z[i] *= 2; }
aos
for (var i = 0, li=vectors.length; i < li; ++i) { vector = vectors[i]; vector.x = 2 * vector.x; vector.y = 2 * vector.y; vector.z = 2 * vector.z; }
soa mark II
for (var i = 0, li=x.length; i < li; ++i) { x[i] *= 2; } for (var i = 0, li=y.length; i < li; ++i) { y[i] *= 2; } for (var i = 0, li=z.length; i < li; ++i) { z[i] *= 2; }

Run results for: soa vs aos

As titled

soa

aos

soa mark II