From owner-freebsd-current@FreeBSD.ORG Sun Jul 18 08:14:47 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A25BC1065673 for ; Sun, 18 Jul 2010 08:14:47 +0000 (UTC) (envelope-from dougb@FreeBSD.org) Received: from mail2.fluidhosting.com (mx21.fluidhosting.com [204.14.89.4]) by mx1.freebsd.org (Postfix) with ESMTP id E1C348FC18 for ; Sun, 18 Jul 2010 08:14:46 +0000 (UTC) Received: (qmail 23471 invoked by uid 399); 18 Jul 2010 08:14:44 -0000 Received: from localhost (HELO laptop.dougb.net) (dougb@dougbarton.us@127.0.0.1) by localhost with ESMTPAM; 18 Jul 2010 08:14:44 -0000 X-Originating-IP: 127.0.0.1 X-Sender: dougb@dougbarton.us Date: Sun, 18 Jul 2010 01:14:41 -0700 (PDT) From: Doug Barton To: Kostik Belousov In-Reply-To: <20100717192128.GM2381@deviant.kiev.zoral.com.ua> Message-ID: References: <20100717192128.GM2381@deviant.kiev.zoral.com.ua> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) X-message-flag: Outlook -- Not just for spreading viruses anymore! OpenPGP: id=1A1ABC84 Organization: http://SupersetSolutions.com/ MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-current@freebsd.org, Rui Paulo Subject: Re: Why is intr taking up so much cpu? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Jul 2010 08:14:47 -0000 On Sat, 17 Jul 2010, Kostik Belousov wrote: > Run top in the mode where all system threads are shown separately > (e.g. top -HS seems to do it), then watch what thread eats the processor. And the winner is! 11 root -32 - 0K 168K WAIT 0 0:28 18.02% {swi4: clock} 11 root 21 -64 - 0K 168K WAIT 0 1:17 18.90% intr The first is with -H, the second without. Doug -- Improve the effectiveness of your Internet presence with a domain name makeover! http://SupersetSolutions.com/ Computers are useless. They can only give you answers. -- Pablo Picasso