See also: http://brad.livejournal.com/2230083.html

epoll-driven jabberd from Brad "LiveJournal" F, scaling to 25k connections in 97Mbyte of RAM.

YAWS: http://www.sics.se/~joe/apachevsyaws.html

Handles 90,000 connections on a box where Apache dies at 4,000.

I didn't see Erlang in that article. I wonder why.

This is an oldie, but I haven't found any reference in news.yc so I thought it may be of use to some of you. Also, it's more up to date than it looks in the first few paragraphs.