Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19

[Ingo Molnar]

* Rui Nuno Capela <rncbc@xxxxxxxxx> wrote:

> > i think i found the bug - it's an upstream ACPI bug. Does the patch
> > below (or the -31-19 kernel, which i've just uploaded) fix the xruns?
> >
> 
> So far so good.
> 
> I have now an armed RT-V0.31-19 on my laptop, running for about 30
> minutes already, running the usual 'jackd -R -dalsa -dhw:0 -r44100
> -p64 -n2 -S -P' from qjackctl, several qsynth (fluidsynth) engines are
> up and running, normal desktop janitor work (KDE) and yes, ACPI is on.
> Oh, wi-fi is also pumping nice :)
> 
> Guess what? No XRUNs, not even one to show you a single latency trace.
> 
> I'll keep you posted, if anything goes less right than it is :).

great - it seems the ACPI fix made a difference. If there are no xruns
then you might want to try the # of engines at which point xruns show
up. (can the soundcard period size / buffering be reduced further, to
make it more sensitive to scheduling latencies?)

	Ingo
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