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

[David Reveman]

On Mon, 2006-06-12 at 16:08 +0100, Gustavo J. A. M. Carneiro wrote:
> 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... :-)

/cairo-dock --benchmark --glitz
~8fps

> 
> > 
> > -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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-David