Wichert Akkerman wrote:
Previously Chris Withers wrote:
The implicit change to make them all 64-bits which results in some
unknown slowdown for all "I" BTree users seems a bit too scary to bite
off...
Has anyone done any benchmarks to prove that 64-bits is slower or
faster? It would be interesting to see benchmarks on modern 32bit
and a 64bit systems. Until then it's all hand-waiving.
One data point: on my AMD 64 box, when I run 32 bit Linux, I get about
30,000 pystones, while 64 bit Linux yields 50,000 pystones. This
doesn't mean 64 bit code is necessarily faster, but it does suggest that
64 bit CPUs prefer 64 bit code.
Shane
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