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