It is true! If you explicitly synchronize between threads, sure, you can't optim... | Hacker News

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anematode 3 months ago | parent | context | favorite | on: Python 3.15's JIT is now back on track

It is true! If you explicitly synchronize between threads, sure, you can't optimize it in general, but if not, the compiler is well within its rights to cache the access.

bjourne 3 months ago [–]

Sure, if the compiler can prove that the objects are thread-local. But that's not the general case.

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