select vs poll vs epoll

Question

Iam designing a new server which needs to support thousands( somewhere between 100,000 sessions) of udp connections. What is the best polling method to use for socket FD's. I have read that epoll is better than select/poll. Any input or suggestions on which one to use. Thanks.

Answer 1

Linux: epoll FreeBSD: kqueue Windows: ??

There are wrapper libraries, such as libevent and libev, which can abstract this for you.