From owner-freebsd-performance@FreeBSD.ORG Mon Feb 21 20:38:43 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E613D16A4CE; Mon, 21 Feb 2005 20:38:43 +0000 (GMT) Received: from mh1.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id EC3DA43D66; Mon, 21 Feb 2005 20:38:42 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh1.centtech.com (8.13.1/8.13.1) with ESMTP id j1LKcfxs051438; Mon, 21 Feb 2005 14:38:42 -0600 (CST) (envelope-from anderson@centtech.com) Message-ID: <421A46D1.1010003@centtech.com> Date: Mon, 21 Feb 2005 14:38:41 -0600 From: Eric Anderson User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.5) Gecko/20050210 X-Accept-Language: en-us, en MIME-Version: 1.0 To: David Rice References: <200502211234.51976.drice@globat.com> In-Reply-To: <200502211234.51976.drice@globat.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.82/718/Mon Feb 21 04:38:57 2005 on mh1.centtech.com X-Virus-Status: Clean cc: freebsd-performance@freebsd.org cc: Robert Watson Subject: Re: High traffic NFS performance and availability problems X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Feb 2005 20:38:44 -0000 David Rice wrote: > Here are the snapshots of the output you requested. These are from the NFS > server. We have just upgraded them to 5.3-RELEASE as so many have recomended. > Hope that makes them more stable. The performance still needs some attention. [..snip..] > Disks amrd0 da0 pass0 pass1 pass2 intrn 100 0: clk > KB/t 22.41 0.00 0.00 0.00 0.00 114288 buf > tps 602 0 0 0 0 510 dirtybuf > MB/s 13.16 0.00 0.00 0.00 0.00 70235 desiredvnodes > % busy 100 0 0 0 0 I think you are spindle bound - looks like the disk is maxed (heavy writes?). What kind of disk subsystem do you have? Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology I have seen the future and it is just like the present, only longer. ------------------------------------------------------------------------