Re: [patch] voluntary-preempt-2.6.8-rc2-L2, preemptable hardirqs

Lee Revell
2004-07-28T06:18:22Z

On Wed, 2004-07-28 at 00:59, Ingo Molnar wrote:
> * Lee Revell <rlrevell@joe-job.com> wrote:
>
> > The obvious next feature to add would be to make certain IRQs
> > non-schedulable, like you would for an RT system. For an audio system
> > this would be just the soundcard interrupt (and timer as stated
> > above). Then, while it still might not be hard-RT, it would blow away
> > anything achievable on the other OS'es people do audio work with.
>
> yes, this is the next step. Does v=3 work on your system? (even if the
> delaying of the soundcard irq causes latencies.)
>

Yes, it works well, except for this behavior which is as expected. I
will test making this interrupt 'direct' tomorrow, it is not shared with
anything too heavy.

Lee