From owner-freebsd-performance@FreeBSD.ORG Thu Feb 12 18:04:50 2009 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1DEF2106564A for ; Thu, 12 Feb 2009 18:04:50 +0000 (UTC) (envelope-from richardtector@thekeelecentre.com) Received: from mx0.thekeelecentre.com (mx0.thekeelecentre.com [IPv6:2001:470:1f09:16f:2::3]) by mx1.freebsd.org (Postfix) with ESMTP id CA3568FC08 for ; Thu, 12 Feb 2009 18:04:49 +0000 (UTC) (envelope-from richardtector@thekeelecentre.com) Received: from localhost (filter.mx0.thekeelecentre.com [217.206.238.165]) by mx0.thekeelecentre.com (Postfix) with ESMTP id 1FA3445142; Thu, 12 Feb 2009 18:04:49 +0000 (GMT) X-Virus-Scanned: amavisd-new at thekeelecentre.com Received: from mx0.thekeelecentre.com ([217.206.238.167]) by localhost (filter.mx0.thekeelecentre.com [217.206.238.165]) (amavisd-new, port 10024) with ESMTP id 5tZJklj2c+Qx; Thu, 12 Feb 2009 18:04:47 +0000 (UTC) Received: from [10.0.2.50] (daffy.tector.org.uk [82.71.32.9]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx0.thekeelecentre.com (Postfix) with ESMTPSA id DF9AD45025; Thu, 12 Feb 2009 18:04:45 +0000 (GMT) Message-ID: <499464B5.3090001@thekeelecentre.com> Date: Thu, 12 Feb 2009 18:04:37 +0000 From: Richard Tector User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: "O. Hartmann" References: <89D2AE9E4EAAB34FABDBF2913867C62F1CB4B133@ZABRYSVISEX04.af.didata.local> <49940E8E.1080107@thekeelecentre.com> <89D2AE9E4EAAB34FABDBF2913867C62F1CBB66F5@ZABRYSVISEX04.af.didata.local> <499439A8.1080208@zedat.fu-berlin.de> In-Reply-To: <499439A8.1080208@zedat.fu-berlin.de> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: Bradley Radjoo , freebsd-performance@freebsd.org Subject: Re: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Feb 2009 18:04:50 -0000 O. Hartmann wrote: > When I read this posting I was quite happy having found a possible > solution, but I can't find the above mentioned OID, FreeBSD > 8.0-CURRENT/amd64 (running on this box) shows only "hw.ata.wc: 1" as > a relevant OID. No hw.mpt.XXX OIDs anywere. This is the part from DMESG > reflecting MPT: > It's a driver tunable, not a sysctl. Richard