I wonder how it compares with all the <i>other</i> high performance Erlang web servers. He seems familiar with them, so I'm curious what requirements or functionality changed that they needed to write their own instead of hacking one of the others.
You may have a problem in your math. A mean of 4.3us with a stdev of 10.9us should mean that your 99% should be over 26us, unless it's super smooth with a few huge outliers.<p>Also, are you sure you didn't mean ms and not us? Seems more likely for an HTTP service.
Color me disinterested.<p>Show me a real benchmark. I don't really care if its written in Erlang. I can likely blow that 'Hello World' away by writing directly to a socket.