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Cc: freebsd-questions@freebsd.org
Subject: Re: limiting Buf memory
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>
> Possibly you don't understand your question, either.  "Buf" is not a state 
> which is exclusive: that 110MB of memory is comprised of backing store from 
> the disk which is in the Active or Inactive states.
>
> hw.physmem - Wired ~= hw.usermem
> Active + Inactive + Cache + Free ~= hw.usermem

fortunately, while i (as you state) don't know what i'm asking about, i 
found the solution, probably because i don't know why it work. but it 
works anyway

kern.maxbcache=bytecount

in loader.conf