[ZODB-Dev] [Enhancement Proposal] Memory size limited Cache

[Chris Withers]

Dieter Maurer wrote:
> A new proposal:
> 
>   http://www.zope.org/Wikis/ZODB/MemorySizeLimitedCache
> 
> It outlines how to implement a ZODB cache limited not be the
> number of containing objects but by their estimated memory size.
> 
> Feedback welcome -- either here or in the Wiki.

I think any work in this area can only be a good thing :-)

I like the idea of an interface allowing alternate cache 
implementations, but will it suffer from not knowing what other possible 
implementations could need or is this a really well defined boundary anyway?

I also really like the idea of a memory-limited cache, especially if 
that limit is applied during a transaction rather than just at the 
boundaries.

Is there a performance hit for using the pickle size? I guess I'm asking 
if we have to pick the object to find it's pickle size?

cheers,

Chris

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