Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.29-0

[Florian Schmidt]

On Sun, 21 Nov 2004 16:12:25 +0100
Ingo Molnar <mingo@xxxxxxx> wrote:

> 
> * Florian Schmidt <mista.tapas@xxxxxxx> wrote:
> 
> > [...] Opposed to 29-1 PREEMPT_REALTIME which showed some very weird
> > jackd behaviour (xruns from 10usec to 50msec [!!!]). rtc_wakeup was
> > showing no large jitter for that kernel though, nor did the different
> > traces show anything that might have caused the jackd xruns. And yes,
> > i configured the irq handlers sanely :)
> 
> i am too seeing constant, periodic xruns coming every 100 millisecs or
> so. Simply running current Jack CVS via 'jackd -R -p1024 -d alsa' gives
> tons of periodic xruns. Are you seeing the same?

Nope, i don't see those. 

- my soundcard doesn't allow periodsizes > 512, so i ran with 512 now

- the xruns are very sporadic. My gnome desktop has a little toolbar thingy
which can hide all windows on a click and show em all again on the next
click. I _think_ there _might_ be a correlation to rapidly clicking that
hide/show all windows thing. But i'm not sure at all since it is not really
reproducable.

.config attached (29-4)

Will try 29-5 today (although my time might be limited due to some visitors)

flo

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