[Zope] Re: Refcounts, ZODB Cache and memory leaks?

[Dylan Jay]

I've been going some testing with gc.set_debug etc and it looks like there 
isn't a memory leak or at least not one the garbage collector can find. That 
means that the data must be remaining reachable somehow.

-- 
Dylan Jay
---
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"Dylan Jay" <gmane at dylanjay.com> wrote in message 
news:d5pu2j$q7j$1 at sea.gmane.org...
> "Peter Bengtsson" <mail at peterbe.com> wrote in message 
> news:loom.20050426T185741-270 at post.gmane.org...
>> Dylan Jay <me <at> dylanjay.com> writes:
>>
>>> If anyone has experience with finding these kind of rouge references I'd
>>> really appreciate any tips.
>>
>> I have no idea how to patch tings with LeakFinder to find your problems 
>> because
>> LeakFinder, albeit a great piece of code, attempts an incredibly 
>> difficult task.
>> Most likely, your memory leaks is due to an assignment of really large 
>> lists on
>> complex objects (eg. more complex than strings or numbers).
>
> Can you expound on this a little as this sounds very interesting? Why do 
> assignments to a list normally result in leaks? Do you mean lists of 
> complex objects or complex objects that have lists?
>
>> Look for any constructs where you extract large lists and do operations 
>> on them.
>> Once you have, if you ever, contain these, return to the mailing list and 
>> we can
>> try to solve it together.
>
> I certainly do operations on lists, partucularly LazyMap etc. I do 
> operations with catalog results and map them to lazily to custom objects 
> which are joined by aquisition to catalog brains.
>
> I'm new to memory leak debugging in python but have done it before in 
> java.
>>From what I understand garbage collection happens differently in java. In
> java you have to avoid circular references, is the same true in python?
>
>
>>
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