RELENG_7 jerky mouse and skipping sound (still a problem -BETA3)

[Oliver Peter]

On Sat, Dec 01, 2007 at 09:49:55PM +0800, Ariff Abdullah wrote:
> On Sat, 1 Dec 2007 12:35:23 +0100
> Oliver Peter <hoschi at 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 at 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=1000 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="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.
> > 
> > I have a similar problem under 7.0-BETA3 with SCHED_ULE and snd_ich.
> > Sound is skipping with/without load every few seconds.
> > 
> > kern.hz is at 1000 and dev.pcm.0.buffersize: 16384
> > 
> 
> Try setting hint.pcm.0.highlatency=1 through device.hints

Thanks Ariff.  A simple reboot fixed the problem...

-- 
Oliver PETER, eMail: hoschi at mouhaha.de, ICQ# 113969174
"Worker bees can leave.  Even drones can fly away.
                         The Queen is their slave."
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