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Date:      Sat, 09 May 2009 08:13:37 -0500
From:      Robert Noland <rnoland@FreeBSD.org>
To:        Dominic Fandrey <kamikaze@bsdforen.de>
Cc:        Alexander Motin <mav@FreeBSD.org>, freebsd-stable@freebsd.org
Subject:   Re: powerd broken
Message-ID:  <1241874817.71435.1.camel@balrog.2hip.net>
In-Reply-To: <4A0580C9.6050902@bsdforen.de>
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>	<4A053E52.5030602@bsdforen.de> <1241870806.1733.61.camel@balrog.2hip.net> <4A0580C9.6050902@bsdforen.de>

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On Sat, 2009-05-09 at 15:10 +0200, Dominic Fandrey wrote:
> Robert Noland wrote:
> > On Sat, 2009-05-09 at 10:26 +0200, Dominic Fandrey wrote:
> >> 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 c=
ommit
> >>>>> something thinking that I have it resolved, it isn't.  So I'm waiti=
ng 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 th=
e ddx
> >>>>> driver is still doing some silly things that cause issues in some c=
ases.
> >>>>> I *think* the only outstanding issue I have with Intel is if someth=
ing
> >>>>> is rendering (synced to vblank or not) when the display goes into d=
pms
> >>>>> sleep, there isn't anything to block that app, so it renders as har=
d as
> >>>>> it can even though it isn't being displayed.  In reality, this prob=
ably
> >>>>> isn't a huge issue, but running gears while the display is asleep k=
eeps
> >>>>> 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 performa=
nce
> >>> regressions are reported across Linux as well.  A little of this migh=
t
> >>> 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).
> >=20
> > Which update, what?  I haven't touched the kernel tree in a while, just
> > trying to sort it all out with patches here and there.  Are you saying
> > the the 2.7.0 intel driver helped?  Or maybe the Xserver or mesa
> > updates?
>=20
> I update my ports daily, without really looking at what. I think
> xorg-server was one of them. It must have been something that happened
> during the last 48 hours.

Ok, well server, mesa and intel driver all got updates in my sweep the
other day.

robert.

> > robert.
> >=20
> >> Thanks a lot.
> >>
> >> Regards
>=20
--=20
Robert Noland <rnoland@FreeBSD.org>
FreeBSD

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