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On Friday 15 August 2008 15:41:04 Volker Armin Hemmann |
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wrote: |
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> On Freitag, 15. August 2008, Alan McKinnon wrote: |
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> > Oddly enough, 3D is very very snappy. It's the 2D |
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stuff that cripples the |
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> > performance, and on a desktop, 2D is exactly what |
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you want. |
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> |
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> AFAIK the problem is that the 8XXX series doesn't |
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really have 2d hardware |
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> anymore - everything is done in the 3d part - and the |
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drivers to support |
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> that are harder to write than anticipated. |
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|
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Sorry for the delayed reply. nvnews was unreachable for |
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me all yesterday afternoon. This post is straight from |
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the horses mouth, from Aaron Platter. He's the nvidia |
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driver author: |
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|
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http://www.nvnews.net/vbulletin/showpost.php?p=1704502&postcount=17 |
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|
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"Compiz window resizing is slow for a number of reasons |
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mostly related to the inefficient way that the X server |
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resizes redirected windows. Performance should be |
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significantly better with InitialPixmapPlacement=2, |
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except that most window decorators use currently- |
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unaccelerated convolution filters for their shadows, |
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bogging it down. Please try solid resizing with IPP=2 |
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and the window decorator disabled, to see how much of an |
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effect it has. Improving the performance of convolution |
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filters and redirected window resizing in general is |
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something we're working on for future driver releases. |
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|
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"Also, you should see a significant improvement in |
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redirected window resizing performance with IPP=1 if you |
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use one of the xserver 1.5 prereleases." |
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|
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-- |
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alan dot mckinnon at gmail dot com |
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