On Fri, 2009-04-10 at 16:53 +0200, Dominic Fandrey wrote: > Robert Noland wrote: > > I've been working on the Intel vblank / irq issues. Every time I commit > > something thinking that I have it resolved, it isn't. So I'm waiting on > > hardware to arrive that will let me test this all more thoroughly. I do > > have a patch that I think fixes most of the issues on Intel, but the ddx > > driver is still doing some silly things that cause issues in some cases. > > I *think* the only outstanding issue I have with Intel is if something > > is rendering (synced to vblank or not) when the display goes into dpms > > sleep, there isn't anything to block that app, so it renders as hard as > > it can even though it isn't being displayed. In reality, this probably > > isn't a huge issue, but running gears while the display is asleep keeps > > the cpu at 100%, which isn't ideal. Normal apps that aren't trying to > > draw as fast as they can, shouldn't cause an issue. > > With the latest drm, the IRQ craziness is gone. However, the crappy > performance remains. 2 months ago a RELENG_7 with all packages > up to date yielded 124fps in a q3 timedemo that now yields 80fps.
Things are still not quite right with the Intel driver. But performance regressions are reported across Linux as well. A little of this might be us, but most of it is Intel... robert. > Regards -- Robert Noland <rnol...@freebsd.org> FreeBSD
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