expensive segmentation (was Re: Memory model)

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Rik van Riel <riel@surriel.com> writes:

...
> - modern CPUs run very slowly when segmentation is enabled
>   (or rather, the segmentation logic is bypassed when all
>   the segments span the magical full 4GB)

That's very interesting.  Could you be more specific or point me to a
thread or reference where examples of this slowdown are discussed in
more detail?

-- 
--Ed L Cashin            |   PGP public key:
  ecashin@uga.edu        |   http://noserose.net/e/pgp/


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