Epoll interesting links

Now that I am working with Go, I was going deeper in Go network APIs and found that Go implements epoll in its library - or, I don't need to do syscalls myself.

Searching for some information, I ended up finding two very interesting articles about epoll internals that clarify some interesting points and I'd like to share (and keep to myself)

Some important context:

Difference of select, poll and epoll:

How epoll works:

What is wrong with epoll:

Last but not least

Please let me know if you find other links better than those :)