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A comment on Green Threads Explained. Parent comment

Re:Green Threads Explained by tinco on Monday May 29, 2017 @01:17PM (#14440151)
Ruby, Python are the prime examples of this. They use the multiple OS threads to run them, but actually use locks to force them to be 'green'.
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Re:Green Threads Explained by JulianWasTaken on Monday May 29, 2017 @01:21PM (#14440173)
That's not really accurate.

CPython threads are honest to goodness OS threads, the GIL has nothing to do with green-ness (and the GIL can be released).

greenlets are green threads, but they're cooperative.

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Re:Green Threads Explained by dragonwriter on Monday May 29, 2017 @02:09PM (#14440490)
That's not green threading, it's just 1:1 native threading with a big lock, which has very different behavior than green threading (either 1:N or M:N).
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