Date: Wed, 18 May 2005 18:08:28 -0700 From: "David O'Brien" <obrien@freebsd.org> To: Brooks Davis <brooks@one-eyed-alien.net> Cc: freebsd-amd64@freebsd.org Subject: Re: FreeBSD on dual core Opterons - stupid buildworld test Message-ID: <20050519010828.GA64608@dragon.NUXI.org> In-Reply-To: <20050518180521.GB9719@odin.ac.hmc.edu> References: <428B6FC1.3000907@fsn.hu> <1116437340.69035.0.camel@hood.oook.cz> <20050518180521.GB9719@odin.ac.hmc.edu>
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On Wed, May 18, 2005 at 11:05:21AM -0700, Brooks Davis wrote: > On Wed, May 18, 2005 at 07:29:00PM +0200, Pav Lucistnik wrote: > > Attila Nagy pí?e v st 18. 05. 2005 v 18:39 +0200: > > > Hello, > > > > > > I did some buildworld tests on an HP BL45p with 4 2,2 GHz Opterons. > > > > > > Sequential time make buildworld -jX times (if there is a missing > > > iteration, then the build has failed): > > > > > http://people.fsn.hu/~bra/bl45p/dmesg.boot > > > > > Hyperthreading: 2 logical CPUs > > > > So dual-core Opterons report into system as Hyperthreading? Uncool. > > What the AMD reps said at a session I attended last year is that they > report as supporting hyper threading, but set another bit to say that > they are actually real cores. We probably need to find out what that > bit is. I'm taking care of this. Please no one commit any AMD Dual-core related patches (especially WRT HTT) with out passing them by me. thanks, -- -- David (obrien@FreeBSD.org)
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