[ZODB-Dev] BTree performance characteristics

[Jim Fulton]

Toby Dickenson wrote:
> I am looking at the number of persistent objects modified by different OIBTree 
> operations.
> 
> I see that the number is nicely low when *adding* elements to a BTree. However 
> the number is much higher when changing the value associated with an existing 
> key.

That seems very odd.

> Are BTrees known to work this way? or do I have something wierd going on?

No. Yes?

Jim

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