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

[Ingo Molnar]

* Florian Schmidt <mista.tapas@xxxxxxx> wrote:

> On Sat, 30 Oct 2004 17:26:06 -0400
> Lee Revell <rlrevell@xxxxxxxxxxx> wrote:
> 
> > OK this is pretty sweet.  With T3 the jitter never exceeds 7% on an idle
> > system.  As soon as I start moving the mouse this goes to 7 or 8%.  I
> > cannot get it to go higher than 10%.  Moving windows around has no
> > effect, the highest jitter happens when I type or move the mouse really
> > fast IOW it corresponds to the interrupt rate.
> > 
> > This is a pretty good baseline for what an xrun-free system would look
> > like.  Now to test the latest version...
> 
> Well, 
> 
> on V0.5.16 i see something like the below output (which is much worse). It
> seems that missed irq's with rtc show up at the same time as the xruns in
> jackd do [i ran both jackd and wakeup in parallel].

ok, could you try the -RT-V0.6.0 patch i've just uploaded? It could i
believe improve these latencies.

	Ingo
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