Re: [announce] [patch] Voluntary Kernel Preemption Patch

From: Ingo Molnar
Date: Sat Jul 10 2004 - 08:57:20 EST



* ismail dönmez <ismail.donmez@xxxxxxxxx> wrote:

> > what filesystem are you using?
> >
>
> XFS

i've fixed latencies in ext3, i'm not sure how bad XFS is. But 2-3
seconds delay is almost impossible to be a true scheduling latency -
it's probably IO latency impacting your audio application. (it could
also be normal preemption latency, if those tasks are not running as
SCHED_FIFO - but 2-3 seconds preemption latency should not be caused by
a simple cp -a. This leaves IO latency.).

Ingo
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