From owner-freebsd-stable@FreeBSD.ORG Wed Mar 5 21:24:17 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D6A551065671 for ; Wed, 5 Mar 2008 21:24:17 +0000 (UTC) (envelope-from davydov@itass.su) Received: from bug.itass.su (bug.itass.su [212.83.24.23]) by mx1.freebsd.org (Postfix) with ESMTP id 358938FC1D for ; Wed, 5 Mar 2008 21:24:16 +0000 (UTC) (envelope-from davydov@itass.su) Received: from [10.101.1.17] (account davydov@itass.su HELO [127.0.0.1]) by bug.itass.su (CommuniGate Pro SMTP 5.1.11) with ESMTPSA id 4059861; Wed, 05 Mar 2008 23:24:13 +0300 Message-ID: <47CF0157.5050408@itass.su> Date: Wed, 05 Mar 2008 23:23:51 +0300 From: "Andrew L. Davydov" Organization: TASS-ONLINE User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: alan bryan References: <915419.88748.qm@web50505.mail.re2.yahoo.com> In-Reply-To: <915419.88748.qm@web50505.mail.re2.yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: freebsd-stable@freebsd.org Subject: Re: 7.0-Release and 3ware 9550SXU w/BBU - horrible write performance X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: davydov@itass.su List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Mar 2008 21:24:18 -0000 alan bryan пишет: > Hi, > > I've got a new server with a 3ware 9550SXU with the > Battery. I am using FreeBSD 7.0-Release (tried both > 4BSD and ULE) using AMD64 and the 3ware performance > for writes is just plain horrible. Something is > obviously wrong but I'm not sure what. > > > Hi! Try to add the following variable in your /etc/sysctl.conf #Disk TWA vfs.hirunningspace=5242880 vfs.read_max=256 reboot or execute /etc/rc.d/sysctl start and try your test again My results Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done... -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 1024 80443 80.6 104481 45.2 43386 19.1 84372 80.4 507936 98.6 19422.9 192.7 Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 100 51012 46.6 103153 38.0 27272 7.4 116210 98.7 989831 99.3 72496.6 183.3 -- Best regards Mr Andrew L. Davydov +7 985 773 8819