From owner-freebsd-current@FreeBSD.ORG  Tue May 22 08:31:12 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: freebsd-current@FreeBSD.org
Delivered-To: freebsd-current@FreeBSD.org
Received: by hub.freebsd.org (Postfix, from userid 680)
	id 3FF6116A46C; Tue, 22 May 2007 08:31:12 +0000 (UTC)
Date: Tue, 22 May 2007 08:31:12 +0000
From: Darren Reed <darrenr@freebsd.org>
To: Vince <jhary@unsane.co.uk>
Message-ID: <20070522083112.GA5136@hub.freebsd.org>
References: <20070407165759.GG8831@cicely12.cicely.de>
	<20070407180319.GH8831@cicely12.cicely.de>
	<20070407191517.GN63916@garage.freebsd.pl>
	<20070407212413.GK8831@cicely12.cicely.de>
	<20070410003505.GA8189@nowhere> <20070410003837.GB8189@nowhere>
	<20070410011125.GB38535@xor.obsecurity.org>
	<20070410013034.GC8189@nowhere> <20070410014233.GD8189@nowhere>
	<4651BD6F.5050301@unsane.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4651BD6F.5050301@unsane.co.uk>
User-Agent: Mutt/1.4.2.1i
Cc: freebsd-fs@FreeBSD.org, Craig Boston <craig@xfoil.gank.org>,
	freebsd-current@FreeBSD.org, Pawel Jakub Dawidek <pjd@FreeBSD.org>,
	Kris Kennaway <kris@obsecurity.org>
Subject: Re: ZFS committed to the FreeBSD base.
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 22 May 2007 08:31:12 -0000

On Mon, May 21, 2007 at 04:40:31PM +0100, Vince wrote:
...
> I dont suppose that there are any other tunables people could suggest? I
> got a shiny new(well old but new to me) dual opteron board and dual 250
> sata drives and though i'd try putting it in as my home server with
> everything but / on zfs since i've had my /usr/ports on my laptop as
> compressed zfs since very shortly after it was commited.
> 	After a few kmem_map: too small" panics I re-read this thread and put
> vm.kmem_size_max and vm.kmem_size up to 512M and vfs.zfs.arc_min
> vfs.zfs.arc_max down to 65 megs. This did get me past "portsnap extract"
> but a make buildworld still got me the same panic.  vmstat -z showed a
> steady growth. This is with a generic -CURRENT from friday. I'm happy to
> provide any useful information once I get home and reboot it.

Are you running the opterons with a 32 or 64 bit kernel?

I set vfs.zfs.arc_max to somewhere between 75% and 80% of vm.kmem_size_max.

Darren