Canvas Draw Image vs fill rect

JavaScript performance comparison

Revision 24 of this test case created

Preparation code

<canvas id="myCanvas" width="600" height="400"></canvas>
<img id="myImg" />
Benchmark.prototype.setup = function() {
    var canvas = document.getElementById('myCanvas');
    var ctx = canvas.getContext('2d');
    var img = document.getElementById('myImg');
    img.onload = function() {
       canvas.height = img.height;
       canvas.width = img.width;
       ctx.fillStyle = ctx.createPattern(img, 'no-repeat');
    img.src = "";
    ctx.mozImageSmoothingEnabled = false;
    //ctx.scale(4, 4);

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Draw Image
ctx.drawImage(img, 0, 0, img.width, img.height);
Fill Rect
ctx.fillRect(0, 0, img.width, img.height);

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