On Tue, 2012-03-20 at 10:08 +0100, Karol Šebesta wrote:
> We have a problem on our production machine with high CPU utilization
> caused by kswapd3 daemon. Server is 128GB of physical memory and 81GB
> of SWAP.
>
>
> # cat /etc/redhat-release
> Red Hat Enterprise Linux Server release 5.6 (Tikanga)
That's a very very old kernel, I would suggest you upgrade to something
that has the reclaim rewrite Rik did to deal with large memory systems.
I think they're in RHEL6, but I'm sure Rik knows.
Also, since you're running this dinosaur, contact RHT, they're the only
ones that care about it -- but I guess you're going to get the same
suggestion.
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