[issue40255] Fixing Copy on Writes from reference counting

[Eddie Elizondo]

Eddie Elizondo <eduardo.elizondorueda at gmail.com> added the comment:

After the added optimizations and assuming that running this more rigorously (i.e PGO + LTO + full cpu isolation + speed.python.org machine) also shows the PR as perf neutral, what are people's thoughts so far?

Would this be enough to consider adding this change by default?

Are there still any concerns regarding correctness? It seems like most of the questions raised so far have already been addressed

----------

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40255>
_______________________________________