Re: Programtically tell diff between HT and real

[Mikael Pettersson]

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.
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