From owner-freebsd-hackers Thu Sep 12 13: 9:38 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8237A37B40A for ; Thu, 12 Sep 2002 13:09:34 -0700 (PDT) Received: from mail.speakeasy.net (mail11.speakeasy.net [216.254.0.211]) by mx1.FreeBSD.org (Postfix) with ESMTP id A742943EA9 for ; Thu, 12 Sep 2002 13:09:24 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 8536 invoked from network); 12 Sep 2002 20:09:22 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail11.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 12 Sep 2002 20:09:22 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.5/8.12.5) with ESMTP id g8CK9LBv039820; Thu, 12 Sep 2002 16:09:21 -0400 (EDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20020912124822.G82726-100000@carver.gumbysoft.com> Date: Thu, 12 Sep 2002 16:09:22 -0400 (EDT) From: John Baldwin To: Doug White Subject: Re: Dell 2650 SMP perf question Cc: hackers@d.sparks.net, freebsd-hackers@freebsd.org Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 12-Sep-2002 Doug White wrote: > On Wed, 11 Sep 2002, John Baldwin wrote: > >> >> On 11-Sep-2002 Doug White wrote: >> > Random notes: >> > >> > On Tue, 10 Sep 2002 hackers@d.sparks.net wrote: >> > >> >> Hyperthreading is turned off, I believe. There aren't any >> >> "hyperthreading" swithes in the bios I could find, but the "logical >> >> processor" option is turned off. >> > >> > HyperThreading is not supported on FreeBSD at current. It requires some >> > ACPI work which hasn't happened yet. >> >> Not quite. It depends on the BIOS. Some BIOS's include logical CPU's >> in the mptable, in which case FreeBSD will work with them fine. Some >> only include logical CPU's in the APIC MADT which FreeBSD doesn't yet >> use on i386 (we use it on ia64 and will eventually use it on i386 as >> we need it for ACPI interrupt routing on SMP.) > > We went through this a few weeks ago ... I'm still trying to find a system > who puts them in the mptable. :-) Look in the smp archives for people who had it work: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=33677+0+archive/2002/freebsd-smp/20020630.freebsd-smp and http://docs.freebsd.org/cgi/getmsg.cgi?fetch=50804+0+archive/2002/freebsd-smp/20020512.freebsd-smp > Who's going to do the work? Probably myself since we need the MADT stuff to work for interrupt routing to work under SMP with ACPI. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message