[issue41299] Python3 threading.Event().wait time is twice as large as Python27

[Ryan Hileman]

Ryan Hileman <lunixbochs at gmail.com> added the comment:

Ok, I filed a PR for this. I used pytime's interface to avoid duplicating the QueryPerformanceFrequency() code.

I found a StackOverflow answer that says QueryPerformance functions will only fail if you pass in an unaligned pointer: https://stackoverflow.com/a/27258700

Per that, I used Py_FatalError to catch this case, as there is probably something wrong with the compiler at that point, and the other recovery options would be likely to result in incorrect program behavior (e.g. dead lock).

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