[issue8299] Improve GIL in 2.7

[David Beazley]

David Beazley <dave at dabeaz.com> added the comment:

What bothers me most about this discussion is that the Windows implementation (legacy GIL) is being held up as an example of what we should be doing on posix.  Yet, if I go run the same thread tests that I presented in my GIL talks on a multicore Windows machine, the performance is every bit as bad, if not worse, than what I reported in my talk.    Therefore, why would we want that?   I just don't get it.

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<http://bugs.python.org/issue8299>
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