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Date: Mon, 16 Apr 2007 17:18:31 -0700
From: Maxim Sobolev <sobomax@FreeBSD.org>
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To: Joerg t <tjoerg@yahoo.com>
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Cc: Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com>,
	freebsd-current@FreeBSD.org, pjd@FreeBSD.org
Subject: Re: Some comments on ZFS
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Joerg t wrote:
>> There is something weird - Just ran same test again to see whether it
>> was a fluke - it still take 1h12 - however I saw the oppersite of Joerg.
>> The "systat -vm" Freemem was permently on 2,2GB - this on a 4GB
>> system that normally shows a 1,2GB - or less after a buildworld.
> 
>> hmm. Pawel are there tests that can help? 
> 
> also how can we determine the real memory consumption by zfs,arc and  his  vfs cache share  ?
> 
> how can we precisely instrument zfs ?

The "vmstat -m" will give you precise breakdown of kernel memory usage.

-Maxim