Multiple interpreters retaining huge amounts of memory

[Bronner, Gregory]

I have an application that simultaneously extends and embeds the python
interpreter. 

It is threaded, but all python calls are performed in one thread.
Several interpreters are running simultaneously -- the application
receives an event, activates a particular interpreter, and calls some
python code.

An interpreter's life cycle is to start, load a bunch of extension
modules, run intermittently for 30 -40 minutes, and end.

At some point, the application calls Py_EndInterpreter on each
interpreter.

My memory allocation goes up by about 1MB per interpreter, of which I
know that 2k (swig types) are really leaked. gc.garbage doesn't have any
cycles.


Is there some way to track references per interpreter, or to get the
memory allocator to set up seperate arenas per interpreter so that it
can remove all allocated memory when the interpreter exits?

Thanks



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