[Python-Dev] Frame zombies

["Martin v. Löwis"]

> Note that _only_ recursions will have more than 1 frame attached.

That's not true; in the presence of threads, the same method
may also be invoked more than one time simultaneously.

> But removing freelist altogether will not work well with any type of
> recursion.

How do you know that? Did you measure the time? On what system?
What were the results?

Performance optimization without measuring is just unacceptable.

Regards,
Martin