[Python-Dev] python, lipo and the future?

"Martin v. Löwis" martin at v.loewis.de
Sun Sep 17 22:34:49 CEST 2006

Ronald Oussoren schrieb:
> BTW. several sites on the interweb claim that x86-64 runs faster than
> plain x86 due to a larger register set. All my machines are 32-bit so I
> can't check if this is relevant for Python (let alone Python on OSX).

That is plausible. OTOH, the AMD64 binaries will often require twice
as much main memory, as all pointers double their size, and the Python
implementation (or most OO languages, for that matter) is full of
pointers. So it will be more efficient only until it starts swapping.
(there is also a negative effect of larger pointers on the processor
 cache; the impact of this effect is hard to estimate).


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