[Python-Dev] Proposed PEP: Optimizing Global Variable and Attribute Access

[Alex Martelli]

"Roman Suzi" <rnd at onego.ru> wrote in message
news:mailman.997770921.12166.python-list at python.org...
> On Tue, 14 Aug 2001, Skip Montanaro wrote:
>
> >         TRACK_OBJECT       math.sin
> >         ...
> >         LOAD_FAST          math.sin
> >         ...
> >         UNTRACK_OBJECT     math.sin
>
> What about threads? What if math.sin changes while in cache?

Isn't that exactly what TRACK_OBJECT *means*?!  If the
tracked object changes, whatever thread perpetrates the
change, the cache will be updated.


Alex