Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4]

Ingo Molnar
2004-10-29T21:53:03Z

* Lee Revell <rlrevell@joe-job.com> wrote:

> On Fri, 2004-10-29 at 23:25 +0200, Ingo Molnar wrote:
> > > will do so. btw: i think i'm a bit confused right now. What debugging
> > > features should i have enabled for this test?
> >
> > this particular one (atomicity-checking) is always-enabled if you have
> > the -RT patch applied (it's a really cheap check).
>
> One more question, what do you recommend the priorities of the IRQ
> threads be set to? AIUI for xrun-free operation with JACK, all that
> is needed is to set the RT priorities of the soundcard IRQ thread
> highest, followed by the JACK threads, then the other IRQ threads. Is
> this correct?

correct. softirqs are not used by the sound subsystem so there's no
ksoftirqd dependency.

Ingo