Date: Tue, 18 May 2004 17:16:03 -0700 From: Brooks Davis <brooks@one-eyed-alien.net> To: JG <amd64list@jpgsworld.com> Cc: freebsd-amd64@freebsd.org Subject: Re: Why is MySQL nearly twice as fast on Linux/AMD64 Vs. FreeBSD/AMD64? Message-ID: <20040519001603.GA16821@Odin.AC.HMC.Edu> In-Reply-To: <5.2.0.9.2.20040518170229.014bd258@mail.ojoink.com> 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>
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--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--
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