[freenet-dev] BDB uses far more memory than it's supposed to; ideas?

[Jano]

Matthew Toseland wrote:

> On Wed, Jan 31, 2007 at 08:46:14PM +0100, Jano wrote:
>> Bob Ham wrote:
>> 
>> > I think there are deeper issues to deal with.  Even disregarding the
>> > database, fred's memory footprint is massive.  For the functionality
>> > that it provides, it seems to me to be excessive.  I can't understand
>> > why fred would need anything in excess of a few 10s of megabytes. 
>> > Where is this memory going?
>> 
>> I agree here. BDB seems a mature database; switching databases without
>> really isolating the culprit seems premature.
> 
> Bob's "deeper issues" are illusory; local configuration problems.
> 
> BDB uses 54MB when I have told it to use 20MB. That is the issue here.
> BDB is responsible for the majority of Fred's memory usage as of now as
> far as I can see.

But why? Can we be sure that the fault is not in some kind of misuse of BDB
instead of being intrinsic to BDB?