[Twisted-Python] Twisted Memory Leaks & Epoll

[Matthew Glubb]

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Hi All,

Thanks for all of your tips. I am sure that I'll get to the bottom of  
it. I think I'll start with pysizer and Andrew's ref counter...


Matt

On 1 May 2007, at 14:38, Andrew Bennetts wrote:

> Matthew Glubb wrote:
> [...]
>> For the purposes of diagnosing the cause of the leak (C extension,
>> python, twisted, or my code) I have removed external library
>> dependencies and I have also swapped out reactors. The leak persists.
>
> Those are all good steps to take to isolate the problem.
>
>> Does anyone have any good tips for diagnosing leaks under twisted?
>
> Basically, the same as for any other long-lived Python program:
>
>   * try to find a minimal case that reproduces the problem, e.g. a  
> simple
>     request that leaks some bytes when repeated, or even better a  
> simple
>     function call, and hope the cause becomes obvious as you narrow  
> it down
>   * try memory profilers like http://pysizer.8325.org/
>   * try my crude hack: http://twistedmatrix.com/users/spiv/ 
> countrefs.py
>   * try to reproduce without any C extensions, to determine if the  
> leak is in a
>     C extension or pure python code
>
> -Andrew.
>
>
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m a t t h e w   g l u b b

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