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Date: Wed, 11 Jan 2006 09:35:35 -0500
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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To: Wojciech Puchar <wojtek@tensor.3miasto.net>
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Cc: freebsd-questions@freebsd.org
Subject: Re: limiting Buf memory
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Wojciech Puchar wrote:
> on my 1GB machine:
> 
> Mem: 529M Active, 209M Inact, 149M Wired, 38M Cache, 109M Buf, 1772K Free
> 
> while "Cache" is dynamic, Buf is not and never goes down.
> 
> how can i get it down to somehow like 40MB?

I think "Buf" corresponds to what NetBSD's top calls "File", it's the amount of 
memory that is bufferring raw blocks from the disk.  Your traditional VM disk 
cache is the "Cache" entry.

See the end of "man top".

-- 
-Chuck