Subject: Re: BUFMEM/UVM?
To: Peter Seebach <>
From: David Brownlee <>
List: current-users
Date: 04/13/2000 10:00:04
	"man 5 options" :)

     options BUFCACHE=value
     Size of the buffer cache as a percentage of total available
     RAM.  Ignored if BUFPAGES is also specified.

     options NBUF=value

     options BUFPAGES=value
     These options set the number of pages available for the buffer cache.
     Their default value is a machine dependent value, often calculated as
     between 5% and 10% of total available RAM.

	Not all ports may implement BUFCACHE, but all should allow NBUF


On Thu, 13 Apr 2000, Peter Seebach wrote:

> I was noticing that the dmesg output for one of my boxes suggests it's using
> less buffer cache than I turn out to want.  In old-VM, I believe this was
> addressed with something like
> 	options "BUFMEM=\(32*1024*1024\)"
> (actually stolen from a BSD/OS config file of some time ago, but you get the
> idea).
> How do you hint at this for modern UVM?
> -s