hi there, all!
Matthew Flaschen
matthew.flaschen at gatech.edu
Tue Jan 27 09:14:41 UTC 2009
Gilles Gravier wrote:
> 64 bits doesn't give you "better computation power". It gives you more
> addressing space. That's all.
>
> The price you have to pay is that for every operation you tend to have
> to move around twice the amount of data than with 32 bits.
It's not true that every data structure is twice as big. Only longs and
pointers are twice as big. Everything smaller is unchanged. See
http://www.unix.org/whitepapers/64bit.html
However, I agree that many use cases do have worse performance.
Matt Flaschen
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