From owner-freebsd-smp Thu Sep 12 21:21:22 1996 Return-Path: owner-smp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA02834 for smp-outgoing; Thu, 12 Sep 1996 21:21:22 -0700 (PDT) Received: from mx.serv.net (mx.serv.net [199.201.191.10]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA02778 for ; Thu, 12 Sep 1996 21:21:17 -0700 (PDT) Received: from MindBender.serv.net by mx.serv.net (8.7.5/SERV Revision: 2.30 † id VAA07294; Thu, 12 Sep 1996 21:21:21 -0700 (PDT) Received: from localhost.HeadCandy.com (michaelv@localhost.HeadCandy.com [127.0.0.1]) by MindBender.serv.net (8.7.5/8.7.3) with SMTP id VAA01364; Thu, 12 Sep 1996 21:20:56 -0700 (PDT) Message-Id: <199609130420.VAA01364@MindBender.serv.net> X-Authentication-Warning: MindBender.serv.net: Host michaelv@localhost.HeadCandy.com [127.0.0.1] didn't use HELO protocol To: Terry Lambert cc: smp@csn.net (Steve Passe), peter@spinner.dialix.com, rv@groa.uct.ac.za, freebsd-smp@freebsd.org Subject: Re: Intel XXpress - some SMP benchmarks In-reply-to: Your message of Thu, 12 Sep 96 11:38:32 -0700. <199609121838.LAA07343@phaeton.artisoft.com> Date: Thu, 12 Sep 1996 21:20:51 -0700 From: "Michael L. VanLoon -- HeadCandy.com" Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >> >> One thing I'm not clear about from the IO apic docs yet is whether there >> >> are 15 cpu's and 15 IO apic's, or whether there's a limit of 15 devices on >> >> the APIC bus. >> > 1 BP, 31 (AP | IO APIC) (2^5 == 32) >> its a four bit register, where do you get 2^5, am I missing something? >Oh, ugh. Sequent supports 32 processors. I wonder how? I don't believe Sequent relies on a whole lot of Intel-brand glue... ----------------------------------------------------------------------------- Michael L. VanLoon michaelv@MindBender.serv.net --< Free your mind and your machine -- NetBSD free un*x >-- NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3, Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32... NetBSD ports in progress: PICA, others... -----------------------------------------------------------------------------