Added framework for canvas benchmark and two examples that stress drawImage. One example draws mult…

Added framework for canvas benchmark and two examples that stress drawImage. One example draws multiple instances of a single image while the other draws multiple images.
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=122605

[Justin Novosad, 2012-02-17 21:50:52]

On 2012/02/17 21:42:05, Alok Priyadarshi wrote:

What is the added value of canvas_bench/single_image.html
compared to the existing canvas_single_image test that is already in
src/chrome/test/data/perf/rendering/throughput?

Is this a replacement?

[alokp, 2012-02-17 21:54:25]

On 2012/02/17 21:50:52, junov wrote:
> On 2012/02/17 21:42:05, Alok Priyadarshi wrote:
> 
> What is the added value of canvas_bench/single_image.html
> compared to the existing canvas_single_image test that is already in
> src/chrome/test/data/perf/rendering/throughput?
> 
> Is this a replacement?

Yes, a replacement. I am trying to turn this into a suite of tests that will
share js and other resources.

Next up is cache-busting large_images.html

[jbates, 2012-02-17 22:13:26]

lgtm

http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html
File canvas_bench/single_image.html (right):

http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html#...
canvas_bench/single_image.html:39: <canvas id="canvas" width="800" height =
"600">
Do you think the canvas sizes in these demos should match the window size? That
way we can control or vary the size via command-line (--window-size=w,h).

[alokp, 2012-02-17 22:21:06]

On 2012/02/17 22:13:26, jbates wrote:
> lgtm
> 
> http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html
> File canvas_bench/single_image.html (right):
> 
>
http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html#...
> canvas_bench/single_image.html:39: <canvas id="canvas" width="800" height =
> "600">
> Do you think the canvas sizes in these demos should match the window size?
That
> way we can control or vary the size via command-line (--window-size=w,h).

It has pros and cons. One downside I can think of is that it will be difficult
to directly compare performance on different browsers.

[jbates, 2012-02-17 22:22:44]

On 2012/02/17 22:21:06, Alok Priyadarshi wrote:
> On 2012/02/17 22:13:26, jbates wrote:
> > lgtm
> > 
> > http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html
> > File canvas_bench/single_image.html (right):
> > 
> >
>
http://codereview.chromium.org/9355020/diff/1/canvas_bench/single_image.html#...
> > canvas_bench/single_image.html:39: <canvas id="canvas" width="800" height =
> > "600">
> > Do you think the canvas sizes in these demos should match the window size?
> That
> > way we can control or vary the size via command-line (--window-size=w,h).
> 
> It has pros and cons. One downside I can think of is that it will be difficult
> to directly compare performance on different browsers.

Good point, better leave as is then.