From owner-freebsd-questions@FreeBSD.ORG Mon Jul 3 09:58:49 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 26BDE16A407 for ; Mon, 3 Jul 2006 09:58:49 +0000 (UTC) (envelope-from Danovitsch@vitsch.net) Received: from amsfep18-int.chello.nl (amsfep17-int.chello.nl [213.46.243.15]) by mx1.FreeBSD.org (Postfix) with ESMTP id 16F2443E57 for ; Mon, 3 Jul 2006 09:58:24 +0000 (GMT) (envelope-from Danovitsch@vitsch.net) Received: from Tuinhuisje.Vitsch.net ([62.195.87.223]) by amsfep18-int.chello.nl (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20060703095822.CZUI1809.amsfep18-int.chello.nl@Tuinhuisje.Vitsch.net>; Mon, 3 Jul 2006 11:58:22 +0200 Received: from [192.168.87.6] (f23025.upc-f.chello.nl [80.56.23.25]) (authenticated bits=0) by Tuinhuisje.Vitsch.net (8.13.1/8.13.1) with ESMTP id k639w9ru051401; Mon, 3 Jul 2006 11:58:16 +0200 (CEST) (envelope-from Danovitsch@vitsch.net) From: "Daan Vreeken [PA4DAN]" Organization: Vitsch Electronics To: nocturnal Date: Mon, 3 Jul 2006 11:57:58 +0200 User-Agent: KMail/1.8.2 References: <44A8D770.5060808@swehack.se> In-Reply-To: <44A8D770.5060808@swehack.se> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200607031157.58675.Danovitsch@vitsch.net> Cc: freebsd-questions@freebsd.org Subject: Re: 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 09:58:49 -0000 On Monday 03 July 2006 10:38, nocturnal wrote: > 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. Try "vmstat -i" to show you what device is causing the interrupts. grtz, Daan