Comment by anematode
3 days ago
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.
3 days ago
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.
Sure, if the compiler can prove that the objects are thread-local. But that's not the general case.