From owner-freebsd-questions@FreeBSD.ORG Fri Feb 16 19:20:46 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5010316A402 for ; Fri, 16 Feb 2007 19:20:46 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from mail-out3.apple.com (mail-out3.apple.com [17.254.13.22]) by mx1.freebsd.org (Postfix) with ESMTP id 31A7413C46B for ; Fri, 16 Feb 2007 19:20:46 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from relay7.apple.com (a17-128-113-37.apple.com [17.128.113.37]) by mail-out3.apple.com (8.13.8/8.13.8) with ESMTP id l1GJKkHn029594; Fri, 16 Feb 2007 11:20:46 -0800 (PST) Received: from relay7.apple.com (unknown [127.0.0.1]) by relay7.apple.com (Symantec Mail Security) with ESMTP id 03FFE30065; Fri, 16 Feb 2007 11:20:46 -0800 (PST) X-AuditID: 11807125-a3308bb0000007df-50-45d6040d9406 Received: from [17.214.13.96] (cswiger1.apple.com [17.214.13.96]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by relay7.apple.com (Apple SCV relay) with ESMTP id EE92230059; Fri, 16 Feb 2007 11:20:45 -0800 (PST) In-Reply-To: <45D5FDED.6090807@freemail.hu> References: <45D5D042.4000202@designaproduct.biz> <45D5F9A9.7090601@freemail.hu> <45D5FAFB.2080801@joeholden.co.uk> <45D5FDED.6090807@freemail.hu> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=ISO-8859-1; delsp=yes; format=flowed Message-Id: <968D90FD-3F47-4743-8653-87BC3CB029C8@mac.com> Content-Transfer-Encoding: quoted-printable From: Chuck Swiger Date: Fri, 16 Feb 2007 11:20:44 -0800 To: =?ISO-8859-1?Q?Nagy_L=E1szl=F3_Zsolt?= X-Mailer: Apple Mail (2.752.2) X-Brightmail-Tracker: AAAAAA== Cc: Joe Holden , freebsd-questions@freebsd.org Subject: Re: Invisible process killing the CPU 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: Fri, 16 Feb 2007 19:20:46 -0000 On Feb 16, 2007, at 10:54 AM, Nagy L=E1szl=F3 Zsolt wrote: >> Possible hardware problem perhaps? Are you able to run a "burn-in" =20= >> test on the machine? > What is that? How can I perform that? (Tomorrow the machine will be =20= > free, I can play with it.) > I can imagine that the processor is overheated and so the frequency =20= > was reduced by the BIOS. But that does not explain why I cannot see =20= > the process using the CPU. An invisible process eating up CPU time =20 > cannot be a hardware problem, can it? One possibility is that your CPU fan has failed, in which case newer =20 machines would downclock itself extremely in order to avoid burning =20 out-- that might be an explanation for why your performance has =20 decreased so much. Otherwise, try using "ps auxw" to show all of the =20= processes which are running and see whether there are surprising =20 things, or perhaps try "top -o time" to sort by accumulated CPU time =20 and look at what's consuming the most... --=20 -Chuck