[ZODB-Dev] Re: ZODB Benchmarks

[David Binger]

On Nov 6, 2007, at 2:30 PM, Roché Compaan wrote:

>> If you can cut the b-node branching factor in half, I bet your
>> benchmark will run almost twice as fast.
>
> I increased the 'DEFAULT_MAX_BUCKET_SIZE' from 30 to 30000 and
> DEFAULT_MAX_BTREE_SIZE from 250 to 2500 and it didn't make any
> noticeable difference. Despite this change there are still a huge  
> amount
> of unexplained calls to the 'persistent_id' method of the ObjectWriter
> in serialize.py.

I can see here that what I wrote was not clear.  I intended
to say that the *smaller* bucket size should be faster for this because
the size of each committed transaction would be smaller.