From owner-freebsd-questions@FreeBSD.ORG Mon Jul 3 09:10:39 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E3F4C16A7F3 for ; Mon, 3 Jul 2006 09:10:39 +0000 (UTC) (envelope-from nocturnal@swehack.se) Received: from mail2.swebase.com (mail2.swebase.com [82.99.44.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id EA17743EE2 for ; Mon, 3 Jul 2006 08:40:06 +0000 (GMT) (envelope-from nocturnal@swehack.se) Received: from [82.99.47.5] by mail2.swebase.com (MDaemon.PRO.v8.1.0.R) with ESMTP id 59-md50000043050.msg for ; Mon, 03 Jul 2006 10:39:06 +0200 Message-ID: <44A8D770.5060808@swehack.se> Date: Mon, 03 Jul 2006 10:38:08 +0200 From: nocturnal User-Agent: Thunderbird 1.5 (X11/20060116) MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Authenticated-Sender: nocturnal@swehack.se X-MDRemoteIP: 82.99.47.5 X-Return-Path: nocturnal@swehack.se X-MDaemon-Deliver-To: freebsd-questions@freebsd.org X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail2 X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00 autolearn=ham version=3.0.4 X-Spam-Level: X-Spam-Processed: mail2.swebase.com, Mon, 03 Jul 2006 10:39:11 +0200 Subject: Interrupt using all 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: Mon, 03 Jul 2006 09:10:40 -0000 Hi I'm having a few problems with a webserver. Today the idle was at 0.0 and it's still like this. It doesn't look like it's affecting web services but it looks weird and i'm afraid that the CPU is working it's ass off with something. Of course nothing shows up in top or ps that could indicate which process is taking up all this cpu and since interrupt is the one using it i'm not even sure anything is actually using up CPU since i don't know what interrupt is. Any hints or pointers would be appreciated. It looks like interrupt and system are fighting for percents, interrupt has 100% constantly and as soon as interrupt drops system takes exactly what's left over and sometimes system doesn't do it so idle gets a few percents. It's weird to me simply because i can't find a description of what interrupt shows in top anywhere in the manuals. -- Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se