From owner-freebsd-questions  Wed Jan 30 10:23:12 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from uni-sb.de (uni-sb.de [134.96.252.33])
	by hub.freebsd.org (Postfix) with ESMTP id 2B1E037B416
	for <freebsd-questions@freebsd.org>; Wed, 30 Jan 2002 10:23:05 -0800 (PST)
Received: from cs.uni-sb.de (cs.uni-sb.de [134.96.252.31])
	by uni-sb.de (8.12.2/2002011500) with ESMTP id g0UIN3w20216
	for <freebsd-questions@freebsd.org>; Wed, 30 Jan 2002 19:23:03 +0100 (CET)
Received: from mail.cs.uni-sb.de (IDENT:7QAwOAFYPRzcs042JiM3a5bbd3nvWun6@mail.cs.uni-sb.de [134.96.254.200])
	by cs.uni-sb.de (8.12.1/2001121800) with ESMTP id g0UIN3r18443
	for <freebsd-questions@freebsd.org>; Wed, 30 Jan 2002 19:23:03 +0100 (CET)
Received: from wjpserver.cs.uni-sb.de (wjpserver.cs.uni-sb.de [134.96.247.42])
	by mail.cs.uni-sb.de (8.12.2/2002011500) with ESMTP id g0UIN1k01903
	for <freebsd-questions@freebsd.org>; Wed, 30 Jan 2002 19:23:01 +0100 (CET)
Received: (from schuerge@localhost)
	by wjpserver.cs.uni-sb.de (8.11.0/8.11.0/wjp-SVR4/1999052600) id g0UIN0Q24389
	for freebsd-questions@freebsd.org; Wed, 30 Jan 2002 19:23:00 +0100 (MET)
From: Thomas Schuerger <schuerge@wjpserver.CS.Uni-SB.DE>
Message-Id: <200201301823.g0UIN0Q24389@wjpserver.cs.uni-sb.de>
Subject: Increasing filesystem cache size again
In-Reply-To: <200201301539.g0UFdBS21946@wjpserver.cs.uni-sb.de> from Thomas Schuerger
 at "Jan 30, 2002 04:39:11 pm"
To: freebsd-questions@freebsd.org
Date: Wed, 30 Jan 2002 19:23:00 +0100 (MET)
X-Mailer: ELM [version 2.4ME+ PL57 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

> Hi!
> 
> Is there any way to increase the filesystem cache size in FreeBSD
> 4.3-STABLE? My cache size never increases to more than 69 MB, although
> more than 400 MB are free and could (and should) be used for that.
> 
> I've seen that "sysctl -a" shows some vfs.* settings that obviously
> control the cache size, but I cannot find a way to change those sizes,
> because they are read-only.
> 
> Can I increase the maximum size at run-time or do I have to specify
> that at kernel compile time? How can I do either of that?
> 
> 
> Greetings,
> Thomas.

I just had a look at how the sysctl variables are called and what the
values are on my system:

vfs.maxbufspace: 70942720
vfs.hibufspace: 70287360
vfs.lobufspace: 70221824
vfs.bufspace: 70221824

How can I increase this to more than 70 MB? Any help is appreciated!


Greetings,
Thomas.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message