ZFS and Wired memory, again

[Volodymyr Kostyrko]

22.11.2013 21:53, Anton Sayetsky написав(ла):
> Hello,
>
> I'm planning to deploy a ~150 TiB ZFS pool and when playing with ZFS
> noticed that amount of wired memory is MUCH bigger than ARC size (in
> absence of other hungry memory consumers, of course). I'm afraid that
> this strange behavior may become even worse on a machine with big pool
> and some hundreds gibibytes of RAM.
>
> So let me explain what happened.

+1 from me, FreeBSD 10, uma=0

52 processes:  2 running, 49 sleeping, 1 zombie
CPU:  0.0% user,  0.0% nice,  0.0% system,  0.4% interrupt, 99.6% idle
Mem: 31M Active, 16K Inact, 3352M Wired, 17M Cache, 48M Free
ARC: 1838M Total, 110M MFU, 18M MRU, 548K Anon, 1876M Header, 75M Other
Swap: 4096M Total, 126M Used, 3969M Free, 3% Inuse

Machine is plain dead. Running database or squid or anything causes 
excessive swapping. This is the state when I disabled all payload, with 
everything started swap goes to 500M and machine is burning disks.

-- 
Sphinx of black quartz, judge my vow.