I just found this article which I think is really helpful as it has some good historical context as well: "Detailed approach of the futex" http://www.rkoucha.

I just found this article which I think is really helpful as it has some good historical context as well: "Detailed approach of the futex" http://www.rkoucha.fr/tech_corner/the_futex.html http://www.rkoucha.fr/tech_corner/the_futex.html