HTT on single CPU?

[Larry Rosenman]

--On Wednesday, July 09, 2003 22:25:38 +0200 Jens Rehsack 
<rehsack at liwing.de> wrote:

> Brooks Davis wrote:
>
>>
>> P4's below ~3.1GHz do not actually provide logical CPU support.
>
> That's not true. German distributors sell P4 CPU's FSB 800
> (starting at 2.4GHz) which supports HTT.
>
> I know, that BSD didn't found 2 logical CPU's as John remarked,
> but I didn't understood why the CPU has the feature for HTT but
> no additional logical CPU's?
ALL P-4's have the Feature Bit set, just not all of them have
bits 23-16 of %ebx set to something greater than 1 on a cpuid instruction
with %eax = 1.


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 972-414-9812                 E-Mail: ler at lerctr.org
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