Peter Shenkin wrote:
>
>Opteron is different. As discussions here about a year
>ago pointed out, Opteron 64-bit executables have access to
>several registers that 32-bit executables do not. Therefore,
>on Opteron, 64-bit executables run somewhat faster than
>32-bit executables. A 12% speed improvement was cited as
>either typical or maximal (I forget which).
>
>
While I don't have first hand experience, I would have expected similar
results, for the same reasons as Opteron. More registers ... EM64T
(Intel) and AMD64 are almost precisely the same instruction set ....
--
Keith H. Bierman [log in to unmask]
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