title: Performance hit when drawing on canvas using GPU
body: <p>Using Chrome 12 my game is drawing smoothly. But Chrome 14, which appears to use the GPU for drawing, has an enormous negative impact on the performance of my game.</p>
  
  <p>I made a jsFiddle to see when exactly it happens and this simple code is already running into problems: <a href="http://jsfiddle.net/eGjak/48/" rel="nofollow">http://jsfiddle.net/eGjak/48/</a>.</p>
  
  <ul>
  <li>On Chrome 12, the FPS is 62, which is even more than my screen frequency.</li>
  <li>On Chrome 14, the FPS is ~25.</li>
  </ul>
  
  <p>25 FPS is quite acceptable, but in my game I'm drawing even more and it is running down to ~8 FPS there, which definitely is <em>not</em> acceptable. I've never had any performance problems but the GPU update for canvas is a bottleneck for me.</p>
  
  <ul>
  <li>Why is some simple drawing on canvas so much slower using the GPU?</li>
  <li>Can I disable Chrome from using the GPU through JavaScript? (Or is there another solution for this?)</li>
  </ul>
  
  <hr>
  
  <p><strong>Edit:</strong> Filed a bug at <a href="http://code.google.com/p/chromium/issues/detail?id=89540" rel="nofollow">http://code.google.com/p/chromium/issues/detail?id=89540</a></p>