Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 31 Mar 1996 22:34:11 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freebsd.org (FreeBSD hackers)
Subject:   Re: Lowering minfree to 1% on large disks
Message-ID:  <199603312034.WAA00828@uriah.heep.sax.de>
In-Reply-To: <Pine.NEB.3.92.960331133320.29121H-100000@zap.io.org> from "Brian Tao" at Mar 31, 96 01:49:15 pm

next in thread | previous in thread | raw e-mail | index | archive | help
As Brian Tao wrote:

>     I know the tunefs man page contains warnings about lowering the
> minfree threshold on a disk to below 5%, but besides file write
> performance, is there any other reason *not* to drop it down to 1 or
> 2 percent?

File *write* performance?  I think it's the overall file system
performance.  Read the daemon book...

Perhaps for a rather static file system, where you're keeping the
fragmentation low by restore(8)ing the file system frequently after
modifications, it might be okay, or for file systems that are only
rarely used at all.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199603312034.WAA00828>