Date: Fri, 14 Mar 2003 17:41:13 -0800 From: Brooks Davis <brooks@one-eyed-alien.net> To: smp@freebsd.org Subject: weird power usage on dual Xeon Message-ID: <20030314174113.A16583@Odin.AC.HMC.Edu>
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--Nq2Wo0NMKNjxTN9z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I recently got a dual Xeon from work that I'm using for testing and since I'm paying for the power I hooked up my power meter up to it to see how much power it consumed when. The results were somewhat suprising. Is it expected that the Idle loop would consume more power then a FPU intensive application like SETI@Home? The only thing I can think of is that the Idle loop stays in the cache and doesn't have the kinds of stalls an appliction with 15MB of data to process does. no HTT HTT idle+hlt 94W 94W idle 170W 183W seti 160W 172W seti+hlt 159W 171W idle: idle htl: sysctl machdep.cpu_idle_hlt=3D1 seti: all CPUs (real or logical) running linux-setiathome-i686 -- 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 --Nq2Wo0NMKNjxTN9z Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+coS4XY6L6fI4GtQRApFqAJ91LUWMX5lFNj5n67D4rG5ds1Ht1wCfWBg2 xnzM2ebpP8sCfhbq3ioSx64= =DHh/ -----END PGP SIGNATURE----- --Nq2Wo0NMKNjxTN9z-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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