Messages in this thread | | | Date | Thu, 17 Jun 2004 10:55:00 +0200 (MEST) | From | Mikael Pettersson <> | Subject | Re: Programtically tell diff between HT and real |
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On Wed, 16 Jun 2004 13:01:02 -0700 (PDT), Phy Prabab wrote: >So, if I understand correctly, there is no way to know >definitively if a cpu is HT or not?
Of course there is. Intel's documentation, in particular the IA32 Volume 2 and 3 manuals and application note 485 (CPUID) describe this. They are downloadable as PDFs from developer.intel.com.
Use CPUID to retrieve the "number of siblings" value. >1 implies HT actually enabled. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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