[Python-Dev] Removing the GIL (Me, not you!)

["Martin v. Löwis"]

>> Sure - but those things don't get modified that often, except for their
>> reference count.
> 
> The reference count is the killer, though -- you have
> to lock the object even to do that. And it happens
> a LOT, to all objects, including immutable ones.

Now we are getting into details: you do NOT have to lock
an object to modify its reference count. An atomic
increment/decrement operation is enough.

Regards,
Martin