Twin dual core XEON reports 8 CPUs on 64bit kernel

Carsten Aulbert carsten at
Fri Mar 23 18:37:21 UTC 2007

Bruce Ferrell wrote:
> Anyone know why this is?

I'm not 100% positive, but is it possible, that you have Xeons with HT
(Hyperthreading) enabled? Thus, the system sees 2 logical CPUs per
physical core.

If so, you might be able to change it in your BIOS.



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