render-vs-prerender

JavaScript performance comparison

Revision 87 of this test case created by light

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 = 140;
  can2.height = 250;
  var ctx2 = can2.getContext('2d');
  var img = new Image();
img.src = 'http://dianstartups.sinaapp.com/game/static/img/background.png';
ctx2.drawImage(img, 0,0,140,250);
  
      
      
  
</script>
    

Preparation code output

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

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
render
ctx.drawImage(img, 0,0,140,250);
pending…
pre-rendered
ctx.drawImage(can2, 0, 0);
    
    
pending…

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