Visualization for network events and what caused what events

[Jann Horn]

I built some stuff for showing network connections, writes and
incoming data events. It uses domains to show what read caused what
write.

Video: http://www.youtube.com/watch?v=4iSDwAb8XEA
Github: http://github.com/thejh/node-ioprofiler
Needed node.js patch:
https://github.com/thejh/node/compare/joyent:domains2...domains2-profilehooks