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by masklinn
4868 days ago
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If it's like CPython, the interpreter will release the GIL on IO or after a number of "ticks", but "ticks" are very loosely mapped to an expression or statement. So it will generally put all of (get value at index, increment value, store value) under a single lock. So I'd expect that even on MRI the original code could in fact fail to yield 0 once in a while. That's what'd happen on CPython |
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