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> Most languages that include garbage collection allow you to turn it off

Hmm. Clearly I don't know much about this. How do you turn off garbage collection in Java and (say) Python?

Can't say for python but in Java off heap steuctures are pretty standard for performance critical components.

Interesting. Are there APIs to do this?

Python call gc.disable(). I'm not aware of any way to do it in Java other than raising the memory to available to such a high level that it doesn't become an issue (which would probably only work with processes that died, as opposed to long running programs).

gc.disable() introduces an unavoidable memory leak in my program. I also can't control the memory usage of the libraries I link against.

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