[sugar] rendering test

[Riccardo Lucchese]

On Sun, 2008-09-28 at 15:03 +0200, Marco Pesenti Gritti wrote:
> > - joyride regressed sensibly at rendering with cairo since 703
> 
> I have cairo 1.8 rpms compiled for joyride for some other reason.
> Perhaps the regression is in X, but still I think it might be worth to
> give them a try:
> 
> http://dev.laptop.org/~marco/cairo-1.8.0-1.fc9.i386.rpm
> http://dev.laptop.org/~marco/pixman-0.12.0-1.fc9.i386.rpm
> 
same timings with the newer packages :/


Sysprof profile:
 - pixbuf
http://dev.laptop.org/~rlucchese/test_rendering/pixbuf.sysprof
http://dev.laptop.org/~rlucchese/test_rendering/pixbuf.sysprof.00.png
http://dev.laptop.org/~rlucchese/test_rendering/pixbuf.sysprof.01.png

 - image surface
http://dev.laptop.org/~rlucchese/test_rendering/imagesurface.sysprof

 - xlib surface
http://dev.laptop.org/~rlucchese/test_rendering/xlibsurface.sysprof


cpu usage during the tests shown by top:
(build 2489, amd driver)
- pixbuf:
  cpu: ~80% X, ~16% test_gtkimage

- cairo image surface:
  cpu: ~52% test_gtkimage, ~45% X

- cairo xlib surface:
  cpu: ~84% test_gtkimage, ~12% X

I'll rewrite the test in C, I'm curious to see what would be the new
timings.

riccardo