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SubjectRe: [PATCH] per-zone^Wnode kswapd process
William Lee Irwin III wrote:
>
> On Fri, Sep 13, 2002 at 03:52:21PM -0700, Dave Hansen wrote:
> > Here's a per-node kswapd. It's actually per-pg_data_t, but I guess that
> > they're equivalent. Matt is going to follow up his topology API with
> > something to bind these to their respective nodes.
>
> >From 64 parallel tiobench 64's (higher counts livelock in fork() etc.):
>
> 38 root 15 0 0 0 0 RW 23.0 0.0 1:11 kswapd0
> 4779 wli 22 0 4460 3588 1648 R 17.9 0.0 0:16 top
>
> ...
>
> 4779 wli 25 0 4460 3592 1648 R 14.1 0.0 0:27 top
> 38 root 15 0 0 0 0 DW 3.5 0.0 1:31 kswapd0
>

Why do I see only one kswapd here?

Are you claiming an overall 4x improvement, or what?

I'll add some instrumentation whch tells us how many pages
kswapd is reclaiming versus direct reclaim.
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