Re: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling

[Ingo Molnar]

* Jack O'Quin <joq@xxxxxx> wrote:

> Has anyone done this kind of realtime testing on an SMP system?  I'd
> love to know how they compare.  Unfortunately, I don't have access to
> one at the moment.  Are they generally better or worse for this kind
> of work?  I'm not asking about partitioning or processor affinity, but
> actually using the entire SMP complex as a realtime machine.

this particular test was done with an UP kernel. (although the
testsystem indeed is an SMP box.) Generally i mention SMP explicitly. 
There are a couple of patches in the -RT tree to make RT scheduling
better on SMP systems.

with those fixes applied (i.e. under the -RT kernel), jackd/jack_test
behaves better than on a single CPU. I didnt find any scheduling anomaly
that wasnt caused by the kernel.

	Ingo
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