Subject: Re: UVM/other problems for desktop users in current?
To: Gary Thorpe <>
From: Manuel Bouyer <>
List: current-users
Date: 12/23/2002 18:21:03
On Fri, Dec 20, 2002 at 09:27:43AM -0500, Gary Thorpe wrote:
> So what exaqctly is the point of UBC if you have to manually configure
> how much buffer cache your system will use? Is file system I/O and
> device buffering now unified, but not much else (and was this this case
> before anyway)? How is this different from the compile-time setting
> used in 1.5?

The buffer memory is still used to buffer filesystem metadata. For example,
on a filesystem with lots of small files you may want to bump the
buffer cache size to be able to buffer more directories.

Manuel Bouyer <>
     NetBSD: 23 ans d'experience feront toujours la difference