Closed
Description
We use the tp_version
field of class objects for quite a few of our optimizations, so it gets set for almost classes.
If we pre-allocate the version for common classes, like int
, float
, tuple
, etc, then we can use the version number to speedup dispatching by class in a few cases:
Examples:
BIN_OP
andCOMPARE_OP
specialization for common-ish types likeint + float
- Specialization of other ops like
COMPARE_OP
- Reducing the overhead of traversing objects in the garbage collector
- Possible performance improvements to marshal and pickle.
We could add these version numbers when implementing any of the above the features, but I'm proposing adding separately to keep the size of the PR down and easier to review