Date: Sat, 09 May 2009 10:26:58 +0200 From: Dominic Fandrey <kamikaze@bsdforen.de> To: Robert Noland <rnoland@FreeBSD.org> Cc: Alexander Motin <mav@FreeBSD.org>, freebsd-stable@freebsd.org Subject: Re: powerd broken Message-ID: <4A053E52.5030602@bsdforen.de> In-Reply-To: <1239384104.1922.70.camel@balrog.2hip.net> References: <1238293386.00093672.1238281804@10.7.7.3> <49CF0803.1070505@FreeBSD.org> <49CF2F8D.6000905@bsdforen.de> <49CF4EB9.60108@FreeBSD.org> <49CF49F5.6010800@bsdforen.de> <49CF615A.6050304@FreeBSD.org> <49CF595A.30805@bsdforen.de> <49CF6B28.2080400@FreeBSD.org> <49CF60AB.4040709@bsdforen.de> <49CF6899.2060002@bsdforen.de> <49CF8E8D.1080604@bsdforen.de> <49CF9C19.3020509@FreeBSD.org> <49D5DA33.4010800@bsdforen.de> <1238778004.65025.30.camel@balrog.2hip.net> <49DF5D60.9010803@bsdforen.de> <1239384104.1922.70.camel@balrog.2hip.net>
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Robert Noland wrote: > 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... > I don't know what you did with the last update, but performance is now better than ever (2% above what it used to be), which equels 3-4 more frames in ioQuake3 or 200 more in glxgears. The uptime of the notebook is now 15 hours and the interrupt load insignificant. I get no more than 8000 interrupts per seconds. 4000 of these are CPU timers (2000 for each core) and 1000 more are from my mouse, when I move it very fast. Around 2500 from vgapci, when I run glxgears and the rest is just scraps of whatever else is running (e.g. sound). Thanks a lot. Regards
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