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SubjectRe: [patch] voluntary-preempt-
On Fri, 2004-08-20 at 04:13, Ingo Molnar wrote:
> * Lee Revell <> wrote:
> > >
> >
> > I think I am seeing those weird ~1 ms latencies still (actually I am not
> > sure I saw before now):
> >
> >
> this is a 9 msec latency in fact. I know what's going on - it's the
> get_swap_page() locking - i looked at it once already but there's no
> immediate silver arrow. As we allocate more and more swap entries the
> longer the scan gets.

This is an extreme load situation, so I don't think it will be a
real-world problem. I have not seen it under any normal workload.

What about this one:

This appears during normal use.


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