Re: [PERFORM] Recommended Swap space

No, I've had it happen with NUMA turned off. The NUMA issues are with
zone_reclaim_mode. If you have it set to 1 (default on a lot of big
machines) it can cause serious problems with performance as well.

On Fri, Apr 12, 2013 at 3:21 PM, Claudio Freire <klaussfreire(at)gmail(dot)com>wrote:

> On Fri, Apr 12, 2013 at 6:15 PM, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
> wrote:
> > The really messed up bit is that the problems with the kswapd won't show
> up
> > for weeks, months, or sometimes even longer. The symptoms of a kswapd
> > problem is that swap is mostly full, but there's LOTS of free memory /
> > kernel cache, and the kswapd is busily swapping in / out. Page faults
> > skyrocket and the problem can last for a few minutes or a few hours, then
> > clear up and not occur again for a long time.
>
> Isn't that a NUMA issue?
>

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