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Date: Tue, 28 Jan 2014 18:33:13 +0200
From: Andriy Gapon <avg@FreeBSD.org>
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To: Volodymyr Kostyrko <c.kworr@gmail.com>, "Nagy, Attila" <bra@fsn.hu>,
 freebsd-fs@FreeBSD.org
Subject: Re: Lot more swapping in stable/10 with ZFS
References: <52E4DE17.3000206@fsn.hu> <52E7CEB8.7010906@gmail.com>
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on 28/01/2014 17:37 Volodymyr Kostyrko said the following:
> 26.01.2014 12:06, Nagy, Attila wrote:
>> Hi,
>>
>> Running stable/10@r261157 (and earlier too), I've noticed that it swaps
>> much more than previous (stable/9) versions.
>> Current top output from such a machine:
>> Mem: 251M Active, 21M Inact, 7491M Wired, 118M Cache, 17M Buf, 51M Free
>> ARC: 5112M Total, 1455M MFU, 2155M MRU, 7761K Anon, 293M Header, 1223M
>> Other
>> Swap: 2045M Total, 757M Used, 1287M Free, 37% Inuse, 1280K Out
> 
> Just a +1 from me:
> 
> Mem: 1440M Active, 412M Inact, 5889M Wired, 82M Cache, 90M Free
> ARC: 3990M Total, 1981M MFU, 1505M MRU, 533K Anon, 79M Header, 424M Other
> Swap: 8192M Total, 1434M Used, 6758M Free, 17% Inuse
> 
> This machine is up for 1+03:13:06
> 

Guys,

could you please set sysctl vm.lowmem_period to zero (after a fresh reboot) and
see if it makes any difference?

-- 
Andriy Gapon