[Zope-dev] Re: [Zope3-dev] Re: 64-bit BTrees

[Tres Seaver]

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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.

Sure, but the "burden of proof" needs to be on the party proposing the
cnange.  "First, do no harm" is a good principle in such cases.


Tres.
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Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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