From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 23 Jun 2002 03:45:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 23 Jun 2002 03:45:35 -0400 Received: from e21.nc.us.ibm.com ([32.97.136.227]:36233 "EHLO e21.nc.us.ibm.com") by vger.kernel.org with ESMTP id ; Sun, 23 Jun 2002 03:45:35 -0400 Message-ID: <3D157C7C.4080007@us.ibm.com> Date: Sun, 23 Jun 2002 00:45:00 -0700 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020607 X-Accept-Language: en-us, en MIME-Version: 1.0 To: William Lee Irwin III CC: "Christopher E. Brown" , Andreas Dilger , "Griffiths, Richard A" , "'Andrew Morton'" , mgross@unix-os.sc.intel.com, "'Jens Axboe'" , Linux Kernel Mailing List , lse-tech@lists.sourceforge.net Subject: Re: [Lse-tech] Re: ext3 performance bottleneck as the number of spindles gets large References: <20020623043310.GL22411@clusterfs.com> <20020623063543.GH25360@holomorphy.com> <3D1578D3.20909@us.ibm.com> <20020623073644.GK25360@holomorphy.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William Lee Irwin III wrote: > On Sun, Jun 23, 2002 at 12:29:23AM -0700, Dave Hansen wrote: >> Yep, 2 independent busses per quad. That's a _lot_ of busses >> when you have an 8 or 16 quad system. (I wonder who has one of >> those... ;) Almost all of the server-type boxes that we play with >> have multiple PCI busses. Even my old dual-PPro has 2. > > I thought I saw 3 PCI and 1 ISA per-quad., but maybe that's the > "independent" bit coming into play. > Hmmmm. Maybe there is another one for the onboard devices. I thought that there were 8 slots and 4 per bus. I could be wrong. BTW, the ISA slot is EISA and as far as I can tell is only used for the MDC. -- Dave Hansen haveblue@us.ibm.com