From owner-freebsd-current@FreeBSD.ORG Wed Jun 22 13:14:11 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org 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 8FF0D16A41C; Wed, 22 Jun 2005 13:14:11 +0000 (GMT) (envelope-from wilkinsa@squash.dsto.defence.gov.au) Received: from digger1.defence.gov.au (digger1.defence.gov.au [203.5.217.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id DD58243D55; Wed, 22 Jun 2005 13:14:10 +0000 (GMT) (envelope-from wilkinsa@squash.dsto.defence.gov.au) Received: from ednmsw501.dsto.defence.gov.au (ednmsw501.dsto.defence.gov.au [131.185.2.150]) by digger1.defence.gov.au with ESMTP id j5MDCPqI001958; Wed, 22 Jun 2005 22:42:25 +0930 (CST) Received: from muttley.dsto.defence.gov.au (unverified) by ednmsw501.dsto.defence.gov.au (Content Technologies SMTPRS 4.3.17) with ESMTP id ; Wed, 22 Jun 2005 22:44:03 +0930 Received: from ednex501.dsto.defence.gov.au (ednex501.dsto.defence.gov.au [131.185.2.81]) by muttley.dsto.defence.gov.au (8.11.3/8.11.3) with ESMTP id j5MD6s003533; Wed, 22 Jun 2005 22:36:54 +0930 (CST) Received: from squash.dsto.defence.gov.au ([131.185.40.212]) by ednex501.dsto.defence.gov.au with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id MR6XCB36; Wed, 22 Jun 2005 22:36:41 +0930 Received: from squash.dsto.defence.gov.au (localhost [127.0.0.1]) by squash.dsto.defence.gov.au (8.13.3/8.13.3) with ESMTP id j5MD71xC064097; Wed, 22 Jun 2005 22:37:02 +0930 (CST) (envelope-from wilkinsa@squash.dsto.defence.gov.au) Received: (from wilkinsa@localhost) by squash.dsto.defence.gov.au (8.13.3/8.13.3/Submit) id j5MD70Lf064096; Wed, 22 Jun 2005 22:37:00 +0930 (CST) (envelope-from wilkinsa) Date: Wed, 22 Jun 2005 22:37:00 +0930 From: "Wilkinson, Alex" To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= Message-ID: <20050622130659.GF63959@squash.dsto.defence.gov.au> Mail-Followup-To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= , Emanuel Strobl , freebsd-current@freebsd.org, John Baldwin References: <200506091423.39940@harrymail> <200506211539.26772.jhb@FreeBSD.org> <200506220122.24315@harrymail> <86slza27md.fsf@xps.des.no> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <86slza27md.fsf@xps.des.no> User-Agent: Mutt/1.5.9i Cc: Emanuel Strobl , freebsd-current@freebsd.org Subject: Re: lapic@2k interrukts eating CPU cycles 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: Wed, 22 Jun 2005 13:14:11 -0000 0n Wed, Jun 22, 2005 at 09:06:18AM +0200, Dag-Erling Smrgrav wrote: >Emanuel Strobl writes: >> I don't know what lapic stands for (the l, if apic means >> AdvancedProgrammableInterruptController) > >local, meaning per-CPU as opposed to the IOAPIC which is located in >the south bridge and shared by all CPUs. Why do we need both LAPIC *and* an IO-APIC ? - aW