From owner-freebsd-questions@FreeBSD.ORG Mon Dec 13 17:43:19 2004 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 089CB16A4CE for ; Mon, 13 Dec 2004 17:43:19 +0000 (GMT) Received: from sccimhc91.asp.att.net (sccimhc91.asp.att.net [63.240.76.165]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8055F43D3F for ; Mon, 13 Dec 2004 17:43:18 +0000 (GMT) (envelope-from freebsd@nbritton.org) Received: from [192.168.1.10] (12-223-129-46.client.insightbb.com[12.223.129.46]) by sccimhc91.asp.att.net (sccimhc91) with ESMTP id <20041213174317i9100rgb2oe>; Mon, 13 Dec 2004 17:43:18 +0000 Message-ID: <41BDD4B4.50909@nbritton.org> Date: Mon, 13 Dec 2004 11:43:16 -0600 From: Nikolas Britton User-Agent: Mozilla Thunderbird 0.9 (X11/20041203) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Dan Nelson References: <41BDC9A2.2080700@nbritton.org> <20041213165921.GC57328@dan.emsphone.com> In-Reply-To: <20041213165921.GC57328@dan.emsphone.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org Subject: Re: generating synthetic interrupt load 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: Mon, 13 Dec 2004 17:43:19 -0000 Dan Nelson wrote: >In the last episode (Dec 13), Nikolas Britton said: > > >>How does one go about generating heavy interrupt loads? Running bonnie >>and nbench (at the same time) does not seem to be able to do it because >>when I look a systat (iostat) it shows no interrupt load. >> >> > >Try something that generates network traffic (ping -f for example). >Disk interfaces don't generate very many interrupts/sec. > > > Thanks. Flood pinging the broadcast address did the trick, got it up to 15.