Date: Wed, 11 May 2011 14:55:56 +0300 From: "Reko Turja" <reko.turja@liukuma.net> To: "Robert Schulze" <rs@bytecamp.net>, <freebsd-stable@freebsd.org> Subject: Re: 8-STABLE and swap Message-ID: <253BF9B4CB974E538DEBA3044ED8AF44@rivendell> In-Reply-To: <4DCA6BEA.4060605@bytecamp.net> References: <4DCA6BEA.4060605@bytecamp.net>
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> 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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