render-vs-prerender

JavaScript performance comparison

Revision 18 of this test case created

Preparation code

<canvas id="canvas1" width="500" height="500"></canvas>
<script>
  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.fillStyle = "blue";
  ctx2.arc(20, 10, 30, 0, Math.PI * 2, true);
  ctx2.closePath();
  ctx2.fill();
 
     
     
 
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
render
ctx.beginPath();
ctx.fillStyle = "blue";
ctx.arc(20, 10, 30, 0, Math.PI * 2, true);
ctx.closePath();
ctx.fill();
pending…
pre-rendered
ctx.drawImage(can2, 0, 0);
   
   
 
pending…

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