[Bug 11349] New: Radon Mobility 9700: poor 3d performance

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jun 23 04:49:02 PDT 2007


           Summary: Radon Mobility 9700: poor 3d performance
           Product: xorg
           Version: 7.2
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: 84yelo3 at gmail.com
         QAContact: xorg-team at lists.x.org

xserver-xorg-video-ati version 6.6.3-2ubuntu6

This bug is about playing 3d games/apps with a Mobility Radeon 9700.
I've done tests with nexuiz (a complex 3d game like quake), smc (a simple super
mario clone), google earth and compiz (git version 0.5.1)

- nexuiz: the game runs kindly fluid (though the cpu is used at 95%), with
60fps. l see this message in the console
File radeon_mm.c function radeon_mm_alloc line 216
Ran out of GART memory (for 1048576)!
Please consider adjusting GARTSize option.
In fact in xorg.0.log I see this:
(II) RADEON(0): Using 8 MB GART aperture
(II) RADEON(0): Using 5 MB for GART textures

I tried to manually set gart to 128MB with the option GARTSize, but the
situation didn't improve (except that the debug message is gone)
The result with fglrx is worse: good job!

- smc and google earth: The performance is near to 1 fps and the cpu goes
immediately to 100% of use (centrino 1.6ghz), and I see these messages:
File r300_render.c function r300Fallback line 441
Software fallback:ctx->Line.SmoothFlag
Try R300_SPAN_DISABLE_LOCKING env var if this hangs.

if I use driconf to enable the option "Disable low impact fallback" smc runs
smooth (though with 70% cpu usage) but google earth hangs the whole system.
the result with fglrx is: smc has no cpu usage, google-earth has low cpu usage

- compiz: using compiz git version 0.5.1+git20070621-0ubuntu1 I see some
problems in scrolling, animations and when changing to a virtual desktop that
has some open windows. Scrolling is really slow and not acceptable, animations
have some hungs that don't let them be fluid, and when I change desktop there
is a 2 seconds laf before the windows are drawed
Of course I cannot test the performance with fglrx

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