render-vs-prerender

JavaScript performance comparison

Revision 33 of this test case created

Preparation code

<canvas id="canvas1" width="500" height="500">
</canvas>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
render
 
var can = document.getElementById('canvas1');
var ctx = can.getContext('2d');

ctx.beginPath();
ctx.strokeStyle = 'red';
ctx.lineWidth = 4;
ctx.moveTo(10, 10);
ctx.lineTo(10, 30);
ctx.lineTo(30, 30);
ctx.lineTo(40, 70);
ctx.quadraticCurveTo(72, 43, 22, 12);
ctx.quadraticCurveTo(12, 43, 12, 102);
ctx.stroke();
 pending…
pre-rendered
 
var can = document.getElementById('canvas1');
var ctx = can.getContext('2d');

var can2 = document.createElement('canvas');
can2.width = 150;
can2.height = 150;
var ctx2 = can2.getContext('2d');

ctx2.beginPath();
ctx2.strokeStyle = 'red';
ctx2.lineWidth = 4;
ctx2.moveTo(10, 10);
ctx2.lineTo(10, 30);
ctx2.lineTo(30, 30);
ctx2.lineTo(40, 70);
ctx2.quadraticCurveTo(72, 43, 22, 12);
ctx2.quadraticCurveTo(12, 43, 12, 102);
ctx2.stroke();

ctx.drawImage(can2, 0, 0);
 pending…

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