[ZODB-Dev] Re: [Zope-dev] Re: 64-bit BTrees
Chris Withers
chris at simplistix.co.uk
Fri Apr 21 10:14:53 EDT 2006
Dieter Maurer wrote:
> Chris Withers wrote at 2006-4-18 08:34 +0100:
>> ...
>> If having two isn't acceptable, then why do we have an I and O BTree's,
>> not to mention the special ones used for in-memory ZODB indexes? Surely
>> we should just have one BTree class?
>
> Using "I" versus "O" BTrees makes a huge difference for mass operations
> (as those used for cataloguing and set operations).
>
> The difference is surely much smaller for "I" versus "L" BTrees -- but
> it will be measurable for many catalog searches.
Exactly, hence why I want to keep them differentiated :-)
I'd only want to see L*BTrees if they're really needed...
cheers,
Chris
--
Simplistix - Content Management, Zope & Python Consulting
- http://www.simplistix.co.uk
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