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
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