如果事件数超过epoll_wait（）的maxevents参数，剩余事件会发生什么？

Question

Is epoll chivalrous enough to hold onto the remaining events, and put them into the events array the next time epoll_wait() is called? Or does it simply trash them like a total jerk?

The man page neglects to mention this.

Answer 1

Forgetting the events would be...extremely rude to the programmer. Anything based on edge-triggered epoll would stop working under load.

EDIT : I forgot to mention that epoll will not forget about events that it hasn't returned to user code, barring those cases where the underlying file has been closed.