From owner-freebsd-amd64@FreeBSD.ORG Tue May 18 17:16:44 2004 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4ADBB16A4CE for ; Tue, 18 May 2004 17:16:44 -0700 (PDT) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1B93943D2D for ; Tue, 18 May 2004 17:16:44 -0700 (PDT) (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 (8.12.10/8.12.10) with ESMTP id i4J0G3s0017404; Tue, 18 May 2004 17:16:03 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.10/8.12.3/Submit) id i4J0G3rQ017403; Tue, 18 May 2004 17:16:03 -0700 Date: Tue, 18 May 2004 17:16:03 -0700 From: Brooks Davis To: JG Message-ID: <20040519001603.GA16821@Odin.AC.HMC.Edu> References: <5.2.0.9.2.20040518103357.04c6cbb8@mail.ojoink.com> <5.2.0.9.2.20040518103357.04c6cbb8@mail.ojoink.com> <5.2.0.9.2.20040518170229.014bd258@mail.ojoink.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="7AUc2qLy4jB3hD7Z" Content-Disposition: inline In-Reply-To: <5.2.0.9.2.20040518170229.014bd258@mail.ojoink.com> User-Agent: Mutt/1.5.4i cc: freebsd-amd64@freebsd.org Subject: Re: Why is MySQL nearly twice as fast on Linux/AMD64 Vs. FreeBSD/AMD64? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 May 2004 00:16:44 -0000 --7AUc2qLy4jB3hD7Z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, May 18, 2004 at 05:02:51PM -0700, JG wrote: > At 06:28 PM 5/18/2004 -0500, you wrote: > >JG wrote: > > > >> > >>Dual AMD Opteron 240's (1.4ghz) > >>Tyan S2882UGNR server-class motherboard w/LSI Zero channel Raid card. > >>2 gigs PC-2700 registered ECC memory > >>Seagate barracuda ATA 100 system drive > >>RAID-0 Mysql drive composed of 2 15k RPM U160 SCSI Fujistu drives. > > > > > >How is the memory laid out? How many DIMMs, and are they evenly spread= =20 > >between the CPUs? >=20 > There are only (2) 1GB modules. They are laid out as the motherboard=20 > suggests for this > configuration - both modules on the CPU0 bank. =20 I'd recommend replacing those 1GB modules with 4 512MB modules. That should yeild improved performance across the board by giving both CPUs their own RAM. -- 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 --7AUc2qLy4jB3hD7Z Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFAqqdCXY6L6fI4GtQRAlxhAKCuUfKhFL7O7ezWx+5DhOEdAcOWpQCfRNHM /I/8jMI0wzyRazwI7/iWotM= =pSgH -----END PGP SIGNATURE----- --7AUc2qLy4jB3hD7Z--