STR: 1. Open http://www.syntensity.com/static/mams/mams.html and start playing the game. When you finish a level, the game renders your moves during that level as the two gray rectangular boxes are drawn to the screen. We perform extremely badly when this happens. According to a profile, we seem to be spending all of our time in DrawTargetCG::DrawSurface calling CGContextDrawImage here: <http://mxr.mozilla.org/mozilla-central/source/gfx/2d/DrawTargetCG.cpp#264>.

(In reply to Ehsan Akhgari [:ehsan] from comment #0) > Created attachment 609507 [details] > Instruments profile > > STR: > > 1. Open http://www.syntensity.com/static/mams/mams.html and start playing > the game. When you finish a level, the game renders your moves during that > level as the two gray rectangular boxes are drawn to the screen. We perform > extremely badly when this happens. > > According to a profile, we seem to be spending all of our time in > DrawTargetCG::DrawSurface calling CGContextDrawImage here: > <http://mxr.mozilla.org/mozilla-central/source/gfx/2d/DrawTargetCG.cpp#264>. How do we compare to Safari on 10.6?

Also, I can't seem to be able to start playing.

(In reply to Jeff Muizelaar [:jrmuizel] from comment #1) > (In reply to Ehsan Akhgari [:ehsan] from comment #0) > > Created attachment 609507 [details] > > Instruments profile > > > > STR: > > > > 1. Open http://www.syntensity.com/static/mams/mams.html and start playing > > the game. When you finish a level, the game renders your moves during that > > level as the two gray rectangular boxes are drawn to the screen. We perform > > extremely badly when this happens. > > > > According to a profile, we seem to be spending all of our time in > > DrawTargetCG::DrawSurface calling CGContextDrawImage here: > > <http://mxr.mozilla.org/mozilla-central/source/gfx/2d/DrawTargetCG.cpp#264>. > > How do we compare to Safari on 10.6? Safari doesn't support typed arrays so I can't really tell... (In reply to Jeff Muizelaar [:jrmuizel] from comment #2) > Also, I can't seem to be able to start playing. This is due to another bug, which I have fixed. A new version of the game which does not have that bug will be available in a few minutes.

I see this on Linux as well. Looks like CPU usage goes up when showing the replay stuff, and also when showing a dialog box when you walk on it. Something to do with blitting (drawImage) with alpha perhaps?

I uploaded a new version of the game with ehsan's fixes, should work everywhere now.

(In reply to Alon Zakai (:azakai) from comment #5) > I uploaded a new version of the game with ehsan's fixes, should work > everywhere now. The game is gone :(

Need to re-evaluate this when it's back.