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PyPy seems soo underrated.... So much work, and so little recognition :-/ I was looking forward to trying it out but moved off python before the libraries I u

• cyberax 2y ago
  PyPy still has GIL, though. In my practice (before I jumped ship to Go) PyPy never really made real code much faster. You still had to play games with shared memory to achieve multi-threading, and/or run multiple copies of a server process. They should have just tried to go GIL-less instead of wasting time on trying transactional memory.
  • bastawhiz 2y ago
    They did. They kicked off the STM project over a decade ago and produced a handful of releases. The project died on the vine: > STM was a research project that proved that the idea is possible. However, the amount of user effort that is required to make programs run in a parallelizable way is significant, and we never managed to develop tools that would help in doing so. At the moment we're not sure if more work spent on tooling would improve the situation or if the whole idea is really doomed. The approach also ended up adding significant overhead on single threaded programs, so in the end it is very easy to make your programs slower. (We have some money left in the donation pot for STM which we are not using; according to the rules, we could declare the STM attempt failed and channel that money towards the present GIL removal proposal.) https://pypy.org/posts/2017/08/lets-remove-global-interpreter-lock-748023554216649595.html https://pypy.org/posts/2017/08/lets-remove-global-interprete...