Messages in this thread | | | Date | Tue, 23 Nov 2004 14:55:08 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2 |
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* Rui Nuno Capela <rncbc@rncbc.org> wrote:
> OK. I tried 14 instances of jack_test. I even modded Florian's > original source code, to let each client instance have 4 ins and 4 > outs, and to make things a litle bit heavier, all 4 inputs are mixed > into each of the 4 outputs. > > Saw at least a couple of XRUNs in a 20 (4*5) minute test-run. CPU load > doesn't get above 30% on my laptop (P4/UP 2.533Ghz).
the max CPU load i get here is 46% (your laptop is faster), but no xruns. The result of a 5-minute run is:
************* SUMMARY RESULT **************** Timeout Count . . . . . . . . :( 0) XRUN Count . . . . . . . . . : 0 Delay Count (>spare time) . . : 0 Delay Count (>1000 usecs) . . : 0 Delay Maximum . . . . . . . . : 0 usecs Cycle Maximum . . . . . . . . : 1016 usecs Average DSP Load. . . . . . . : 46.4 % Average CPU System Load . . . : 40.5 % Average CPU User Load . . . . : 2.3 % 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 . . . : 2374.1 /sec Average Context-Switch Rate . : 19172.8 /sec
i suspect i need to activate some option/define in jackd to get some of the more advanced stats such as delay-maximum?
the kernel i used was -30-6 and i used the snd-via82xx driver. (I had to do -n3 instead of -n2 when starting up jackd - otherwise i'd get an endless stream of very small xruns, apparently a via82xx driver bug?)
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