Ubuntu
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  1. Bug #252094
  2. Comment #63

Comment 63 for bug 252094

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Kornel Jahn (cornail) wrote : Re: Poor graphics performance and rendering errors on Intel GM965 system, Ubuntu 8.10

I did a little benchmarking regarding the graphics performance in Sidux Ourea (released 22 Sep) and Ubuntu Intrepid, both amd64 version. The results are in the attached tarball, and they are fairly interesting!

The hardware is a Lenovo Thinkpad R61i with an integrated Intel GM965 GPU.

I compared the log-files from both OS-es.
The several Xorg driver and module versions, reported by Xorg.0.log are the same. EXA is used in both cases.
Looking at glxinfo results, the main differences are in Mesa OpenGL Renderer and OpenGL version strings, and GLX extensions.
In neither cases does does xorg.conf contain any special device options, so it is not included in the tarball.

glxgears and OpenArena timedemo "anholt" (http://dri.freedesktop.org/wiki/Benchmarking) showed remarkable differences though. The performance under Sidux (exa!) is approximately that of Gutsy with XAA and early-Hardy!!! (I also noticed the huge performance drop after 8.04.1). The Interpid results are as poor as already mentioned in this thread.

I am not an expert. Can anyone tell the cause of these differences?