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Thread: R500 Mesa Is Still No Match To An Old Catalyst Driver

  1. #1
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    Default R500 Mesa Is Still No Match To An Old Catalyst Driver

    Phoronix: R500 Mesa Is Still No Match To An Old Catalyst Driver

    We are in the process of conducting a set of tests looking at how the performance of Ubuntu Linux has evolved through their Long-Term Support (LTS) releases beginning with their first 6.06 "Dapper Drake" version followed by Ubuntu 8.04 "Hardy Heron", and then the Ubuntu 10.04 "Lucid Lynx" release that will be released by month's end. These benchmarks will look at how the performance of Ubuntu Linux has changed over the past four years, but first we deviated from our original plans to get a look at how the current open-source ATI R500 graphics driver in Ubuntu 10.04 provided by the Mesa stack performs against older proprietary ATI Catalyst drivers.

    http://www.phoronix.com/vr.php?view=14749

  2. #2
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    Well, this is with Mesa 7.7 and classic r300. For quite some time, the developers focus on r300g, the Gallium3D driver and I think it's more interesting to track the performance of this driver every few months or so. There have been lots and lots of commits already since you benchmarked the driver a few weeks ago It wouldn't surprise me if Mesa 7.9 would default to r300g.

  3. #3

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    Maybe there's some bug in mesa or somewhere, because Warsow ran perfect on my hardware at full details - x1600xt, Athlon X2 5000+ in Kubuntu 9.10 + xorg-edgers repository.

  4. #4
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    Now, let's test this with a Radeon 9200 (R280) GPU

  5. #5
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    for me gallium r300g is already good enough.

    i can run ta3d, and also darkplaces with hdr bloom at decent framerate (it used to choke badly on standard mesa).

    and i do it on a budget x1300pro (rv515) card. i'd say it's acceptable and stilll going better.

  6. #6
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    Maybe a stupid question, but is there any howto explaing how to test the r300g driver? I didn't find any

  7. #7
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    I bet ColorTiling isn't enabled on Lucid. This one should improve performance A LOT with r300c and even more with r300g since only the latter has full tiling support.

    -Marek

  8. #8
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    Recently I upgrade to the latest 10.04 beta and I've noticed that the OSS radeon driver is slower than it was with 9.10 /w xorg-edgers updates. I'm just happy the suspend is working correctly. I know that glxgear is not a bench, but I went from 5500 to 2500.

  9. #9
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    Quote Originally Posted by dieppe View Post
    Maybe a stupid question, but is there any howto explaing how to test the r300g driver? I didn't find any
    in case of r300-r500 cards:

    1. build mesa with gallium enabled.
    2. find where it installed the drivers (in my case /usr/lib/dri)
    3. remove r300_dri.so
    4. make a symlink r300_dri.so -> radeong_dri.so

    check glxinfo - it should say you have opengl 2.1

    Code:
    (...)
    OpenGL vendor string: X.Org R300 Project
    OpenGL renderer string: Gallium 0.4 on RV515
    OpenGL version string: 2.1 Mesa 7.9-devel
    OpenGL shading language version string: 1.20
    (...)

  10. #10
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    Quote Originally Posted by Eosie View Post
    I bet ColorTiling isn't enabled on Lucid. This one should improve performance A LOT with r300c and even more with r300g since only the latter has full tiling support.

    -Marek
    How can ColorTiling be enabled on Lucid (Mesa 7.7)?

    I've got multiseat with two radeon cards (RV350 and RV370) and I was impressed that upgrade to Lucid didn't break my configuration and glxgears had decent fps on my primary display but now I've found I don't have any acceleration on second head (but dmesg, Xorg.log and glxinfo shows it's enabled) - less than 80-90 FPS (compared to ~3000 on first head) and 1080p resolution eats ~100% of one logical CPU (P4 with HT) even in xscreensaver or any other graphic operation.

    dmesg
    Xorg.0.log
    Xorg.1.log

    Has anyone any clues on how to fix it (without getting back to UMS)?

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