Another one not mentioned by the sibling comment: they tried to improve upon the poor scalability of poll(2) before epoll was a thing. Also a bunch of random t

Another one not mentioned by the sibling comment: they tried to improve upon the poor scalability of poll(2) before epoll was a thing. Also a bunch of random things in section 2 of your Linux manpages started out as Sun-introduced APIs back in the day. But a bunch of stuff has been ported or integrated elsewhere. Zfs runs well out of the box on freebsd and as a module on linux. "Containers" are a big thing now where zones might have applied. Etc.