Date: Sat, 1 Dec 2007 21:49:55 +0800 From: Ariff Abdullah <ariff@FreeBSD.org> To: Oliver Peter <hoschi@mouhaha.de> Cc: freebsd-stable@freebsd.org Subject: Re: RELENG_7 jerky mouse and skipping sound (still a problem -BETA3) Message-ID: <20071201214955.4ead2b23.ariff@FreeBSD.org> In-Reply-To: <20071201113522.GC2812@nemesis.frida.mouhaha.de> References: <200710171228.39123.mistry.7@osu.edu> <472ED12B.7040200@gmx.de> <200711070953.22154.mistry.7@osu.edu> <200711191254.08134.mistry.7@osu.edu> <b1fa29170711191022k2e3ea2afocdcd32ca0279c41a@mail.gmail.com> <20071201113522.GC2812@nemesis.frida.mouhaha.de>
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On Sat, 1 Dec 2007 12:35:23 +0100
Oliver Peter <hoschi@mouhaha.de> wrote:
> On Mon, Nov 19, 2007 at 10:22:33AM -0800, Kip Macy wrote:
> > On Nov 19, 2007 9:53 AM, Anish Mistry <mistry.7@osu.edu> wrote:
> > > On Wednesday 07 November 2007, Anish Mistry wrote:
> > > > On Monday 05 November 2007, [LoN]Kamikaze wrote:
> > > > > Marc Fonvieille wrote:
> > > > > > On Thu, Oct 18, 2007 at 05:53:47PM +0200, [LoN]Kamikaze
> > > > > > wrote:
> > > > > >> Anish Mistry wrote:
> > > > > >>> On Thursday 18 October 2007, Marc Fonvieille wrote:
> > > > > >>>> On Wed, Oct 17, 2007 at 12:28:30PM -0400, Anish Mistry
> > > > > >wrote: >>>> I just updated to RELENG_7 from 6.2 and I'm
> > > > > >running into >>>> some really annoying issues with jerky
> > > > > >mouse movement and >>>> skipping sound. This seems to be
> > > > > >similar to: >>>> Re: SCHED_4BSD in RELENG_7 disturbs
> > > > > >workflow >>>> This happens both with 4BSD and ULE.
> > > > > >>>>>
> > > > > >>>>> I seems to happen when I'm compiling ports and a new
> > > > > >>>>> cc/bzip2/sh process fires off (I'm just watching top),
> > > > > >I'll >>>> get the skip/freezeup.
> > > > > >>>>
> > > > > >>>> [...]
> > > > > >>>>
> > > > > >>>> Using ULE and UP kernel (i.e. without SMP etc.) helped
> > > > > >a bit >>> the things but it's still very annoying to use
> > > > > >firefox >>> during ports build. I see this lag/freeze on
> > > > > >all boxes I >>> use with 7.0, but it's true that with a
> > > > > >fast machine people >>> can ignore the problem, it's less
> > > > > >obvious than with a 1GHz >>> box for example.
> > > > > >>>
> > > > > >>> Yeah, I'm still seeing this behavior. Does anyone have
> > > > > >>> suggestions on debugging?
> > > > > >>>
> > > > > >>> Thanks,
> > > > > >>
> > > > > >> I did post the solution in this thread.
> > > > > >
> > > > > > It has nothing to do with the mouse.
> > > > >
> > > > > Does the problem persist for you? It's gone for me, even
> > > > > with moused.
> > > >
> > > > Yes, the problem seems to have been fixed. I'm back to
> > > > kern.hz=3D1000 and removed FULL_PREEMPTION. No skipping.
> > > It looks like I spoke too soon. I've just tried to compile miro
> > > and as it was compiling the boost-python dependency I noticed
> > > the problem again. Switching kern.hz=3D"100" seems to fix the
> > > problem. Can any of the developers in this area reproduce the
> > > issue? It's pretty easy to reproduce on my 1.33Ghz Athlon.
> > >
> > There is an ithread priority inversion bug that might be causing
> > this. The fix for that should be going in shortly.
>=20
> I have a similar problem under 7.0-BETA3 with SCHED_ULE and snd_ich.
> Sound is skipping with/without load every few seconds.
>=20
> kern.hz is at 1000 and dev.pcm.0.buffersize: 16384
>=20
Try setting hint.pcm.0.highlatency=3D1 through device.hints
[...]
> Copyright (c) 1992-2007 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993,
> 1994
> The Regents of the University of California. All
> rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 7.0-BETA3 #0: Fri Nov 30 11:16:35 CET 2007
> hoschi@dogbert.geonosis.homeunix.org:/usr/obj/usr/src/sys/DOGBE
> RT
[...]
--
Ariff Abdullah
FreeBSD
... Recording in stereo is obviously too advanced
and confusing for us idiot ***** users :P ........
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