From owner-freebsd-current@FreeBSD.ORG Fri Nov 12 09:46:13 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B4C2616A4CE for ; Fri, 12 Nov 2004 09:46:13 +0000 (GMT) Received: from peedub.jennejohn.org (Ja9e4.j.pppool.de [85.74.169.228]) by mx1.FreeBSD.org (Postfix) with ESMTP id F0E2143D49 for ; Fri, 12 Nov 2004 09:46:12 +0000 (GMT) (envelope-from garyj@jennejohn.org) Received: from jennejohn.org (localhost [127.0.0.1]) by peedub.jennejohn.org (8.13.1/8.11.6) with ESMTP id iAC9kAsX008350 for ; Fri, 12 Nov 2004 10:46:11 +0100 (CET) (envelope-from garyj@jennejohn.org) Message-Id: <200411120946.iAC9kAsX008350@peedub.jennejohn.org> X-Mailer: exmh version 2.7.0 06/18/2004 with nmh-1.0.4 To: current@freebsd.org In-Reply-To: Message from "Wilkinson, Alex" <20041112054741.GY40520@squash.dsto.defence.gov.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 12 Nov 2004 10:46:10 +0100 From: Gary Jennejohn Subject: Re: dealing with interupt storms ..... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Fri, 12 Nov 2004 09:46:13 -0000 "Wilkinson, Alex" writes: > Hi all, > > How does one stop an interrupt storm in RELENG_5 ? > > >From top(1) > > CPU states: 10.9% user, 0.0% nice, 3.9% system, 85.3% interrupt, 0.0% idle > > >From vmstat(1) > > total rate > ----- ---- > irq18: uhci2 bt0++ 9187313 426 > > 426 interrupts/sec isn't exactly a storm. I have 999/sec on my clock alone and see very low interrupt values in top. Is your top in step with your kernel? --- Gary Jennejohn / garyj[at]jennejohn.org gj[at]freebsd.org garyj[at]denx.de