From owner-freebsd-smp@FreeBSD.ORG Wed Mar 26 14:10:45 2003 Return-Path: Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 159DC37B404 for ; Wed, 26 Mar 2003 14:10:45 -0800 (PST) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1E48F43FB1 for ; Wed, 26 Mar 2003 14:10:44 -0800 (PST) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (IDENT:brdavis@localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.12.8/8.12.3) with ESMTP id h2QMAgZA031288; Wed, 26 Mar 2003 14:10:42 -0800 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.8/8.12.3/Submit) id h2QMAgB9031286; Wed, 26 Mar 2003 14:10:42 -0800 Date: Wed, 26 Mar 2003 14:10:41 -0800 From: Brooks Davis To: "Cagle, John (ISS-Houston)" Message-ID: <20030326141041.A30253@Odin.AC.HMC.Edu> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="EVF5PPMfhYS0aIcm" Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from john.cagle@hp.com on Wed, Mar 26, 2003 at 08:22:57AM -0600 X-Virus-Scanned: by amavisd-milter (http://amavis.org/) on odin.ac.hmc.edu X-Spam-Status: No, hits=-38.8 required=5.0 tests=EMAIL_ATTRIBUTION,IN_REP_TO,PGP_SIGNATURE_2, QUOTED_EMAIL_TEXT,REFERENCES,REPLY_WITH_QUOTES, USER_AGENT_MUTT autolearn=ham version=2.50 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) cc: freebsd-smp@freebsd.org Subject: Re: how many cpus can freebsd support in smp? X-BeenThere: freebsd-smp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: FreeBSD SMP implementation group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Mar 2003 22:11:16 -0000 --EVF5PPMfhYS0aIcm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 26, 2003 at 08:22:57AM -0600, Cagle, John (ISS-Houston) wrote: > I've had 8 real cpus running on a ProLiant DL740. I tried to get 16 > (8 with hyperthreading), but the kernel needs xapic or clustered apic > support to do that. Have you tried since the APIC mask was widened? Prior to that it obviously wouldn't work since you had 8 bits and 16 CPUs. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --EVF5PPMfhYS0aIcm Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+giVhXY6L6fI4GtQRAvrBAJ9WRv8Wy1g7vlhAmew4k9XkgslOTQCgsozO O1+X1K/abtMens4wlX8FfDI= =L/Hp -----END PGP SIGNATURE----- --EVF5PPMfhYS0aIcm--