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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2

* Rui Nuno Capela <rncbc@rncbc.org> wrote:

> Yes, there's a non-official patch to jackd from Lee Revell's. Without
> that you don't get to read the maximum delay from jackd. Sorry. But if
> you have the patience to rebuild jack, here comes attached the minimal
> patch for just that.

thx, it applied cleanly to jack-cvs. Here's the 5-minute idle-system
test again:

************* SUMMARY RESULT ****************
Timeout Count . . . . . . . . :( 0)
XRUN Count . . . . . . . . . : 0
Delay Count (>spare time) . . : 0
Delay Count (>1000 usecs) . . : 0
Delay Maximum . . . . . . . . : 28 usecs
Cycle Maximum . . . . . . . . : 414 usecs
Average DSP Load. . . . . . . : 20.6 %
Average CPU System Load . . . : 11.6 %
Average CPU User Load . . . . : 8.6 %
Average CPU Nice Load . . . . : 0.0 %
Average CPU I/O Wait Load . . : 0.0 %
Average CPU IRQ Load . . . . : 0.0 %
Average CPU Soft-IRQ Load . . : 0.0 %
Average Interrupt Rate . . . : 1671.7 /sec
Average Context-Switch Rate . : 17003.1 /sec
*********************************************

but i can reproduce xruns on another, much slower box, using just 3-4
jack_test clients. The xruns dont seem to be justified, they happen at
30-40% CPU utilization already.

Ingo
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