From owner-freebsd-fs@FreeBSD.ORG Mon May 28 23:12:16 2007 Return-Path: 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 AEA9D16A475 for ; Mon, 28 May 2007 23:12:16 +0000 (UTC) (envelope-from staalebk@ifi.uio.no) Received: from smtp.bluecom.no (smtp.bluecom.no [193.75.75.28]) by mx1.freebsd.org (Postfix) with ESMTP id 73CDE13C4AD for ; Mon, 28 May 2007 23:12:16 +0000 (UTC) (envelope-from staalebk@ifi.uio.no) Received: from eschew.pusen.org (unknown [193.69.145.10]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.bluecom.no (Postfix) with ESMTP id 03BA616F4FF; Tue, 29 May 2007 01:12:15 +0200 (CEST) Received: from chiller by eschew.pusen.org with local (Exim 4.50) id 1HsoNu-0005hY-O8; Tue, 29 May 2007 01:12:18 +0200 Date: Tue, 29 May 2007 01:12:18 +0200 From: =?iso-8859-1?Q?St=E5le?= Kristoffersen To: Nick Gustas Message-ID: <20070528231218.GA14746@eschew.pusen.org> References: <46487565.40205@tychl.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <46487565.40205@tychl.net> User-Agent: Mutt/1.5.13 (2006-08-11) Cc: freebsd-fs@freebsd.org Subject: Re: ZFS performance X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 May 2007 23:12:16 -0000 On 2007-05-14 at 10:42, Nick Gustas wrote: > I see the same behavior that Ståle is seeing, I can "fix" it by setting > vfs.zfs.prefetch_disable="1" in loader.conf. I'm assuming something in > the prefetch code isn't quite right? Ah, this _greatly_ improved the usability of my fileserver! Thanks for the tip :) > I believe I saw similar behavior in > solaris 10 when playing with ZFS a few weeks ago, but I need to revisit > that machine or install opensolaris on this one before I can be sure. Did you get around to checking this out? -- Ståle Kristoffersen staalebk@ifi.uio.no