why memoizing is faster

[Andrea Crotti]

Stefan Behnel <stefan_ml at behnel.de> writes:
>
> Not "restarted" in the sense that it gets cleaned up, though. The
> above simply passes an explicit value for it that will be used for the
> single call. Future calls won't be affected.
>
> Stefan

About this global caching thing I thought, but isn't this a source of
possible HUGE memory leaks?

I mean, when is the object _cache freed from the memory?

From my understanding until the function name is in the scope that
object will never be freed, is that correct?