From owner-freebsd-fs@FreeBSD.ORG  Tue Jun 26 14:29:27 2012
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To: freebsd-fs@freebsd.org
References: <201206251443.41768.jhb@freebsd.org>
Date: Tue, 26 Jun 2012 09:29:16 -0500
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From: Mark Felder <feld@feld.me>
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Subject: Re: [PATCH] Simple ARC stats in top
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On Mon, 25 Jun 2012 13:43:41 -0500, John Baldwin <jhb@freebsd.org> wrote:
>
> Comments, etc.?
>

Why do these stats differ from the ones in the zfs-stats script?

CPU:  0.1% user,  0.0% nice,  0.3% system,  0.1% interrupt, 99.5% idle
Mem: 81M Active, 1118M Inact, 9714M Wired, 76K Cache, 1850M Buf, 6930M Free
ARC: 6026M Total, 128K MRU, 1222K MFU, 24K Anon, 9961K Header, 238K Other
Swap: 18G Total, 18G Free

zfs-stats output:

ARC Size Breakdown:
         Recently Used Cache Size:       0.67%   40.11   MiB
         Frequently Used Cache Size:     99.33%  5.85    GiB

Shouldn't your MFU be 5.85GiB and MRU be 40MiB?