Messages in this thread | | | Date | Fri, 29 Oct 2004 23:22:56 -0400 | From | Joe <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4 |
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On Fri, 29 Oct 2004 23:09:24 -0400, Lee Revell <rlrevell@joe-job.com> wrote: > On Fri, 2004-10-29 at 16:31 +0200, Florian Schmidt wrote: > > i tried a V0.5.2 with PREEMPT_REALTIME and all debugging off (config > > attached). I cannot reproduce your results. I have experienced around 30 > > xruns in 10 minutes. And big ones, too (> 5ms). I don't know exactly what > > kind of load triggers them. Here's a bit of qjackctl message window (btw: > > jackd was idle, no clients connected, except for qjackctl): > > > > I am seeing the same behavior, about 30 xruns in 10 minutes. It seems > to be triggered by display activity, among other things. This cannot be > a jackd issue, because with an earlier version (T3) I can run for 24 > hours without a single xrun. > > There has to be a bug somewhere in the RT preempt patch. > > Lee
There is, this has been a well-known issue with many versions of real-time voluntary preemption, which is also a main reason as to why I avoid it, voluntary preemption performs flawlessly however RT has been horrendous. Hopefully the bugs will get smoothed out. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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