From owner-freebsd-questions@FreeBSD.ORG Wed May 21 18:27:15 2003 Return-Path: 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 6105537B401 for ; Wed, 21 May 2003 18:27:15 -0700 (PDT) Received: from out004.verizon.net (out004pub.verizon.net [206.46.170.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 81B4143F75 for ; Wed, 21 May 2003 18:27:14 -0700 (PDT) (envelope-from cswiger@mac.com) Received: from mac.com ([129.44.60.214]) by out004.verizon.net (InterMail vM.5.01.05.33 201-253-122-126-133-20030313) with ESMTP id <20030522012713.KLWH28930.out004.verizon.net@mac.com>; Wed, 21 May 2003 20:27:13 -0500 Message-ID: <3ECC276C.8020809@mac.com> Date: Wed, 21 May 2003 21:27:08 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030507 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Paul Hamilton References: In-Reply-To: X-Enigmail-Version: 0.75.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH at out004.verizon.net from [129.44.60.214] at Wed, 21 May 2003 20:27:13 -0500 cc: Freebsd-Questions Subject: Re: 'top' showing high interrupt rate X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2003 01:27:15 -0000 Paul Hamilton wrote: > I noticed that top shows a rather high interrupt rate, usually hovering > around 60%! Here is a sample:- [ ... ] > Anyone have any idea how to troubleshoot further? How can I isolate what is > causing the rather high interrupt rate? By any chance, have you altered the system quantum (HZ), or enabled kern.polling? -Chuck