Date: Wed, 3 May 2006 13:44:02 -0500 From: "Larry Rosenman" <ler@lerctr.org> To: "'Spartak Radchenko'" <spartak@aif.ru>, "'Marc G. Fournier'" <scrappy@hub.org> Cc: freebsd-stable@freebsd.org Subject: RE: Hyperthreading in 6.x ... still frowned upon? Message-ID: <009401c66ee1$8c706170$0202fea9@aus.pervasive.com> In-Reply-To: <20060503184223.GB2198@oberon.aif.ru>
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Spartak Radchenko wrote: > On Wed, May 03, 2006 at 11:42:18AM -0300, Marc G. Fournier wrote: >> >> In 4.x, it was a 'shut it off' sort of deal .. my new amd64 don't >> appear to have it enabled, but my older i386 server that I just >> upgraded to 6.x does: > > I am not sure I understood your problem correctly... Do you want > to enable hyperthreading on amd64? But they have no such thing. > Intel only. you do know that EM64T Xeons *DO* have hyperthreading, and (can) run an amd64 kernel? $ sysctl hw hw.machine: amd64 hw.model: Intel(R) Xeon(TM) CPU 3.00GHz hw.ncpu: 4 -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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