Date: Wed, 16 Jan 2019 12:46:39 -0500 From: "James B. Byrne" <byrnejb@harte-lyne.ca> To: "Steve O'Hara-Smith" <steve@sohara.org> Cc: freebsd-questions@freebsd.org Subject: Re: Memory usage appears a bit high Message-ID: <0c45ab67b1480d39dd87059495f6a27c.squirrel@webmail.harte-lyne.ca> In-Reply-To: <20190116173621.9d90157c1adf526298763415@sohara.org> References: <35c451bc1733004b7d868f60da68c639.squirrel@webmail.harte-lyne.ca> <20190116173621.9d90157c1adf526298763415@sohara.org>
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On Wed, January 16, 2019 12:36, Steve O'Hara-Smith wrote:
> On Wed, 16 Jan 2019 12:31:14 -0500
> "James B. Byrne via freebsd-questions" <freebsd-questions@freebsd.org>
> wrote:
>
>> We have an Cyrus IMAP service running on a BHyve FreeBSD-11.2p7 vm.
>> It has 4 Gb allocated. I have noticed that top reports this:
>>
>> Mem: 164M Active, 204M Inact, 22M Laundry, 3426M Wired, 111M Free
>
> Are you running ZFS ? If so then most of the wired memory is
> probably ARC.
>
Yes, we are running the vm using zfs.
ARC: 2432M Total, 451M MFU, 1683M MRU, 8480K Anon, 38M Header,
252M Other
1828M Compressed, 3768M Uncompressed, 2.06:1 Ratio
Could someone explain to me what I am seeing and why it is so?
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