Am Donnerstag, 16. April 2009 schrieb Brice Goglin: > Gunter Ohrner wrote: > > So, what's wrong - or at least that different - with Debian's 2.6.29 > > kernel?
> PAT is disabled in 2.6.29, we feel like it may explain some performance > problems if the video memory isn't in write combining anymore. Using EXA, the measured x11perf aa font rendering performance is 5 to 6 times better with the PAT kernel. The subjective impact to compositing performance is even larger - significantly larger. While using the KDE 4 desktop is virtually impossible with EXA and the Debian Linux 2.6.29 image - the "window gallery" task switcher resembles a slide show, no animation is visible at all - it feels responsive and fluent using the 2.6.29 linux image. Greetings, Gunter Ohrner
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