Hyperthreading in 6.x ... still frowned upon?

Larry Rosenman ler at lerctr.org
Wed May 3 18:44:45 UTC 2006

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 at lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893

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