Audio after heavy filesystem activity

Simon 'corecode' Schubert corecode at
Fri Dec 21 07:07:08 PST 2007

Matthew Dillon wrote:
>     There are several possible causes and several possible solutions.
>     Ultimately running the sound device interrupt MPSAFE would allow it
>     to preempt the kernel in nearly all situations.

I was under the impression that the sound devices are MPSAFE.

I rather suspect that the userland process producing the audio data is
not being scheduled as often as it should, thus causing the blips.

>     Separating the
>     mount point's vnode list into a clean list and a dirty list would
>     also reduce the amount of scanning SYNC has to do by a lot.  Doing
>     a staggered sync would also help.... right now its done on a mount
>     by mount basis.

Yes, this should be done eventually.


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