From owner-freebsd-questions@FreeBSD.ORG Wed May 13 14:15:34 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 153D21065677 for ; Wed, 13 May 2009 14:15:34 +0000 (UTC) (envelope-from andy@xecu.net) Received: from shell.xecu.net (shell.xecu.net [216.127.136.216]) by mx1.freebsd.org (Postfix) with ESMTP id E352C8FC23 for ; Wed, 13 May 2009 14:15:33 +0000 (UTC) (envelope-from andy@xecu.net) Received: from shell.xecu.net (shell.xecu.net [216.127.136.216]) by shell.xecu.net (Postfix) with ESMTP id 4ACB9251B4F; Wed, 13 May 2009 10:15:33 -0400 (EDT) Date: Wed, 13 May 2009 10:15:33 -0400 (EDT) From: Andy Dills To: Tijl Coosemans In-Reply-To: <200905131605.04534.tijl@ulyssis.org> Message-ID: <20090513101509.Y64283@shell.xecu.net> References: <20090512135226.N64283@shell.xecu.net> <200905131605.04534.tijl@ulyssis.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: freebsd-questions@freebsd.org Subject: Re: Extreme filesystem performance decrese going from FreeBSD4 to FreeBSD7 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 May 2009 14:15:34 -0000 On Wed, 13 May 2009, Tijl Coosemans wrote: > I believe there was a performance regression in 7.1 for SCSI disks. I > don't know if the amr driver was affected but the issues should be > resolved in FreeBSD 7.2 so you might want to give that a try. http://www.nabble.com/HEADS-UP:-Major-CAM-performance-regression-td21994181.html Indeed, that appears to be the source of the issue. Thanks very much. Andy --- Andy Dills Xecunet, Inc. www.xecu.net 301-682-9972 ---