image-vs-text

JavaScript performance comparison

Revision 5 of this test case created by Simon

Preparation code

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

<script>
var can = document.getElementById('canvas1');
var ctx = can.getContext('2d');
var img = new Image();
img.src = "http://placekitten.com/100/100";
ctx.font = '72pt Verdana';
img.onload = function() {
  ctx.drawImage(img, 0, 0);
}
var i = 0;
</script>
      
<script>
Benchmark.prototype.setup = function() {
  ctx.clearRect(0,0,500,500);

};
</script>

Preparation code output

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

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
text
ctx.fillText('lala', 100, 100);
ctx.fillRect(i, i, 6, 6);
i++;
if (i > 300) i = 0;
pending…
image
  ctx.drawImage(img, 0, 0);
pending…

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Revisions

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