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Subject: Re: patch O1int for 2.5.73 - interactivity work
From: Daniel Gryniewicz <dang@fprintf.net>
To: Mike Galbraith <efault@gmx.de>
Cc: Con Kolivas <kernel@kolivas.org>,
       linux kernel mailing list <linux-kernel@vger.kernel.org>,
       Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>
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On Wed, 2003-06-25 at 15:00, Mike Galbraith wrote:
> At 02:09 AM 6/26/2003 +1000, Con Kolivas wrote:
> 
> >I'm still working on something for the "xmms stalls if started during very
> >heavy load" as a different corner case.
> 
<snip scheduler suggestion>
> Just a couple random thoughts, both of which I can see problems with ;-)
> 

At least on 2.4 (I use 21-ck3), it appears to be I/O starvation that
gets xmms, not scheduler starvation.  When xmms skips for me, there's
load, but there's also usually some idle time.  The common thread seems
to be heavy I/O on the drive xmms is using, possibly combined with a
(formerly?) interactive process (evolution rebuilding my LKML index, for
example) doing the disk I/O.  Because of the assorted I/O scheduler
changes in 2.5, this is unlikley to be the problem there.

Daniel
-- 
Daniel Gryniewicz <dang@fprintf.net>

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