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SubjectRe: [PATCH] per-zone^Wnode kswapd process
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

...

OTOH, with such a small task count, ZONE_NORMAL is the only thing
feeling pressure anyway. There's also very little cpu pressure:
CPU states: 0.2% user, 6.4% system, 0.0% nice, 93.4% idle

Cheers,
Bill
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