[cairo] Where's the bottleneck in using glitz/cairo/librsvg?

[Gustavo J. A. M. Carneiro]

On Seg, 2006-06-12 at 12:54 +0200, David Reveman wrote:
> I've played with the example-code a bit. Added a useful --benchmark
> switch, a --surface-buffering switch and a --glitz switch. I also
> changed so that buffered surfaces are larger and we scale down instead
> of up. Removed the text so we're only measuring icon rendering.
> 
> My current results:
> 
> without my patch for server-side gradients:
> 
> /cairo-dock --benchmark
> ~5fps
> 
> with my patch for server-side gradients:
> 
> /cairo-dock --benchmark
> ~10fps
> 
> 
> with surface buffering (using today's xgl-0-0-1 branch with slightly
> optimized software scaling code):
> 
> /cairo-dock --benchmark --surface-buffering
> ~300fps
> 
> 
> glitz backend:
> 
> /cairo-dock --benchmark --surface-buffering --glitz
> ~2000fps

  Interesting...

  I'd be interesting also to see results with --glitz alone, no
--surface-buffering.  For the sake of curiosity... :-)

> 
> -David
> 
> On Wed, 2006-06-07 at 03:13 +0200, Mirco Müller wrote:
> > Greetings everybody!
> > 
> > 	Trying to achieve crisp animated graphics I encountered an unexpected
> > CPU-hogging. Have a look at this blog-entry...
> > 
> > 	http://macslow.thepimp.net/?p=58
> > 
> > 	You'll find example-code, a sysprof-log and screencasts of the issue at
> > hand. While it looks like librsvg to be the "bottleneck", I would like
> > to hear opinions of others on this, who are more experienced with
> > profiling-work and have a deeper knowledge of glitz, cairo and librsvg.
> > 
> > Thanks in advance for your help!
> > 
> > Best regards...
> > 
> > Mirco "MacSlow" Müller
> > 
> 
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-- 
Gustavo J. A. M. Carneiro
<gjc at inescporto.pt> <gustavo at users.sourceforge.net>
The universe is always one step beyond logic.
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