From owner-freebsd-stable@FreeBSD.ORG Fri Jun 23 22:08:18 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9D29616A492 for ; Fri, 23 Jun 2006 22:08:18 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id D89D643D49 for ; Fri, 23 Jun 2006 22:08:17 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 1936F60EB; Fri, 23 Jun 2006 18:08:17 -0400 (EDT) X-Virus-Scanned: amavisd-new at codefab.com Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EStbnRAdrnsX; Fri, 23 Jun 2006 18:08:16 -0400 (EDT) Received: from [199.103.21.238] (pan.codefab.com [199.103.21.238]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id 27F7F60C3; Fri, 23 Jun 2006 18:08:16 -0400 (EDT) In-Reply-To: <20060623172557.H1114@ganymede.hub.org> References: <20060623172557.H1114@ganymede.hub.org> Mime-Version: 1.0 (Apple Message framework v750) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <261AD16B-C3FE-4671-996E-563053508CE8@mac.com> Content-Transfer-Encoding: 7bit From: Charles Swiger Date: Fri, 23 Jun 2006 18:08:14 -0400 To: Marc G. Fournier X-Mailer: Apple Mail (2.750) Cc: freebsd-stable@freebsd.org Subject: Re: vmstat 'b' (disk busy?) field keeps climbing ... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jun 2006 22:08:18 -0000 On Jun 23, 2006, at 4:44 PM, Marc G. Fournier wrote: > procs memory page disks > faults cpu > r b w avm fre flt re pi po fr sr da0 pa0 in sy > cs us sy id > 1 42 1 10249060 161668 1290 54 12 3 1409 2202 102 0 751 > 6416 3350 24 15 61 > 0 39 0 10148976 148104 654 10 5 2 660 0 49 0 615 4440 > 2584 18 9 73 > > the last time it hung, it hit about 45 ... about 6 hours ago, it > was at ~5-10 ... anything I should look at to figure out where > those 39+ are 'busy'? 'b' stands for "blocked", not "busy". Judging by your page fault rate and the high number of frees and pages being scanned, you're probably swapping tasks in and out and are waiting on disk. Take a look at "vmstat -s", and consider adding more RAM if this is correct... > The system is running a May 25th kernel of FreeBSD 6-STABLE .. Dual- > PIII ... -- -Chuck