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SubjectRe: [patch] SMP alternatives
Mikulas Patocka wrote:
>
> Why should they waste their (already complex) decoding logic with that?
> Why can't an application instead set a bit somewhere if it's running on
> SMP and if it's threaded and branch to variants with and without lock
> prefix?
>

Why? Because it would make the same code run faster on their CPU than
on their competitor's. That's the kind of things that make x86 vendors
smile.

-hpa
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