Run results for: soa vs aos vs typed soa

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
soa	4.4 Ops/sec
aos	3.1 Ops/sec
typed soa	4.5 Ops/sec

Script Preparation code:

var N = 1000000;

var x = new Array(N), y = new Array(N), vx = new Array(N), vy = new Array(N);

var buffer = new ArrayBuffer(N*8*4);

var tx = new Float64Array(buffer, 0, N),
    ty = new Float64Array(buffer, N*8, N),
    tvx = new Float64Array(buffer, N*16, N),
    tvy = new Float64Array(buffer, N*24, N);

var vectors = new Array(N);

for(var i = 0; i < N; ++i){
  x[i] = tx[i] = Math.random()*100|0;
  y[i] = ty[i] = Math.random()*100|0;
  vx[i] = tvx[i] = Math.random()*100|0;
  vy[i] = tvy[i] = Math.random()*100|0;
  
  vectors[i] = { x: x[i], y: y[i], vx: vx[i], vy: vy[i] };
}

var vector;

Tests:

soa
for (var i = 0; i < N; ++i) { x[i] += vx[i]; y[i] += vy[i]; }
aos
for (var i = 0; i < N; ++i) { vector = vectors[i]; vector.x += vector.vx; vector.y += vector.vy; }
typed soa
for (var i = 0; i < N; ++i) { tx[i] += tvx[i]; ty[i] += tvy[i]; }

Run results for: soa vs aos vs typed soa

As titled

soa

aos

typed soa