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Thread: A nice performance tip for 2D

  1. #1
    Join Date
    Nov 2007
    Posts
    31

    Default A nice performance tip for 2D

    Hi

    I recently found that firefox can be a lot faster when Option "XAANoOffscreenPixmaps" "true" is present in device section of your xorg.conf.

    Details at:
    http://vrodic.blogspot.com/2008/01/f...nce-under.html

    and http://vrodic.blogspot.com/2008/01/u...nce-under.html

  2. #2
    Join Date
    Oct 2007
    Posts
    10

    Default

    Thank you! This worked for me on an Ubuntu 7.10 with 1800XT Cat 8.01.

    I found also a few details on cchtml.com wiki
    Last edited by sok-1; 01-19-2008 at 01:58 PM.

  3. #3
    Join Date
    Sep 2006
    Location
    PL
    Posts
    906

    Default

    i have to admit - it works. i have a reason to risk using exa again ;-)

    at least those js-heavy pages don't slow firefox to a crawl anymore. i didn't expect that it would be a driver/xorg issue.

  4. #4
    Join Date
    Jan 2008
    Posts
    3

    Smile

    Thank you!
    (1st post: just registered for the occasion)

    p.s. RV370 [Radeon X300]

  5. #5
    Join Date
    Sep 2007
    Location
    Patras, Greece
    Posts
    63

    Default

    thanx!
    with this on my 2d speed is pretty much ok
    (had it commented out when i installed 8.01... redraws were tragically slow... what's strange is that in the previous drivers i didn't notice any impact on the performance by turning this option on/off)
    anyways...thanx again!
    (btw, any other cool options for xorg.conf?)

  6. #6
    Join Date
    Apr 2007
    Posts
    99

    Default

    "TexturedXrender"
    "Textured2d"

  7. #7
    Join Date
    Jan 2008
    Posts
    206

    Default

    I recently found that firefox can be a lot faster when Option "XAANoOffscreenPixmaps" "true" is present in device section of your xorg.conf.
    Keep in mind that this option disables almost _all_ hardware accaleration. It may be a short-term solution but a real solution would be to write AMD (and also NVidia but their render support is better) that they should implement support for XRender accaleration.

    lg Clemens
    Last edited by Linuxhippy; 01-23-2008 at 09:23 AM.

  8. #8
    Join Date
    Sep 2007
    Location
    Patras, Greece
    Posts
    63

    Default

    weird!!
    is there a list or something with the available xorg.conf options and what they do?

  9. #9
    Join Date
    Jan 2008
    Posts
    66

    Default

    man exa
    man radeon
    man ati

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