From owner-freebsd-fs@FreeBSD.ORG  Tue May 29 14:54:10 2007
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
X-Original-To: freebsd-fs@freebsd.org
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id AE09F16A400
	for <freebsd-fs@freebsd.org>; Tue, 29 May 2007 14:54:10 +0000 (UTC)
	(envelope-from freebsd-fs@tychl.net)
Received: from rwcrmhc13.comcast.net (rwcrmhc13.comcast.net [204.127.192.83])
	by mx1.freebsd.org (Postfix) with ESMTP id 972BE13C48A
	for <freebsd-fs@freebsd.org>; Tue, 29 May 2007 14:54:10 +0000 (UTC)
	(envelope-from freebsd-fs@tychl.net)
Received: from masq.tychl.net (tychl.no-ip.org[67.174.137.176])
	by comcast.net (rwcrmhc13) with ESMTP
	id <20070529145409m13000d4sle>; Tue, 29 May 2007 14:54:09 +0000
Received: from localhost (localhost [127.0.0.1])
	by masq.tychl.net (Postfix) with ESMTP id EAD481CB4B;
	Tue, 29 May 2007 10:54:08 -0400 (EDT)
X-Virus-Scanned: amavisd-new at tychl.net
Received: from masq.tychl.net ([127.0.0.1])
	by localhost (masq.tychl.net [127.0.0.1]) (amavisd-new, port 10024)
	with SMTP id lJvq7XXp5MUC; Tue, 29 May 2007 10:54:07 -0400 (EDT)
Received: from [127.0.0.1] (67-39-225-23.ded.ameritech.net [67.39.225.23])
	by masq.tychl.net (Postfix) with ESMTP id 5C5B81CB4A;
	Tue, 29 May 2007 10:54:07 -0400 (EDT)
Message-ID: <465C3E8E.7040802@tychl.net>
Date: Tue, 29 May 2007 10:54:06 -0400
From: Nick Gustas <freebsd-fs@tychl.net>
User-Agent: Thunderbird 1.5.0.10 (Windows/20070221)
MIME-Version: 1.0
To: =?ISO-8859-1?Q?St=E5le_Kristoffersen?= <staalebk@ifi.uio.no>, 
	freebsd-fs@freebsd.org
References: <46487565.40205@tychl.net>
	<20070528231218.GA14746@eschew.pusen.org>
In-Reply-To: <20070528231218.GA14746@eschew.pusen.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: quoted-printable
Cc: 
Subject: Re: ZFS performance
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 29 May 2007 14:54:10 -0000

St=E5le Kristoffersen wrote:
> On 2007-05-14 at 10:42, Nick Gustas wrote:
>  =20
>> I see the same behavior that St=E5le is seeing, I can "fix" it by sett=
ing=20
>> vfs.zfs.prefetch_disable=3D"1" in loader.conf.  I'm assuming something=
 in=20
>> the prefetch code isn't quite right?
>>    =20
>
> Ah, this _greatly_ improved the usability of my fileserver! Thanks for =
the
> tip :)
>
>  =20
>> I believe I saw similar behavior in=20
>> solaris 10 when playing with ZFS a few weeks ago, but I need to revisi=
t=20
>> that machine or install opensolaris on this one before I can be sure.
>>    =20
>
> Did you get around to checking this out?
>
>  =20

Unfortunately no, I had some unexpected travel come up, and the test=20
Ultra 20s I had access to were deployed while I was on the road.