[issue37562] PEP 590 implementation introduced a performance regression

[Jeroen Demeyer]

Jeroen Demeyer <J.Demeyer at UGent.be> added the comment:

Could you please specify:
- which commits are you comparing exactly? From your explanation, I guess aacc77fbd and its parent, but that's not completely fair since PEP 590 consists of many commits (see #36974). A better comparison would be master against 3.8a4.
- are you compiling with PGO (--enable-optimizations) or not?

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