8-STABLE and swap

[Reko Turja]

> My question now: why does the machine swap, is this normal 
> behaviour?
> Why is wired at about 30 GB if ARC=23 GB and L2ARC-header=259 MB?

If I've understood it right from the mailing lists, ZFS returns memory 
back to the OS from caches somewhat lazily, so in times of high memory 
load ZFS system can cause some swapping.

Of course, once the situation with memory load is over, swap will 
still continue to show the max amount swapped ever, even if everything 
is again back in real memory.

So nothing to worry about I'd say.

-Reko