Martin v. Löwis wrote:
Is it the
x64 working faster at its design sizes

Another guess (still from the darkness of not having received the
slightest clue what the test actually does): if it creates integers
in range(2**32, 2**64), then they fit into a Python int on AMD64-Linux,
but require a Python long on 32-bit Windows; long operations are much
slower than int operations.

......
I don't think we're doing a lot of bignum arithmetic, some masking operations etc etc.

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Robin Becker

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