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I haven’t seriously used Python in over 15 years, but I assume the comparison is against using a preforking server with 1+ process per core.

The question is whether 1+ thread per core with GIL free Python perform as well as 1+ process per core with GIL.

My understanding is that this global is just a way to demonstrate that the finely grained locking in the GIL free version may make it so that preforking servers may still be more performant.





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