The performance degradation with nogil is quoted as 20%. It can easily be as much as 50%.
The JIT does not seem to help much. All in all a very disappointing release that may be a reflection of the social and corporate issues in CPython.
A couple of people have discovered that they can milk CPython by promising features, silencing those who are not 100% enthusiastic and then underdeliver. Marketing takes care of the rest.
Could you clarify what/who you mean by the final sentence. It gives the impression you didn't take on board the articles mention about the three phases.
Why are you disappointed? Do you think that the progress should be faster? Or that this work should never have been started? Or that they should wait until it works better before integrering in master and having it in a mainline release?
The JIT does not seem to help much. All in all a very disappointing release that may be a reflection of the social and corporate issues in CPython.
A couple of people have discovered that they can milk CPython by promising features, silencing those who are not 100% enthusiastic and then underdeliver. Marketing takes care of the rest.