http://chariotsolutions.com/blog/post...
N|Solid is a profiler for server-side JavaScript code running on Node.js. It is implemented as a data collection service, known as the N|Solid Hub or Proxy server, a console, and an etcd server. Your applications connect and send telemetry to the server using a special version of Node.js and some environment variables. See how you can use N|Solid to profile your applications and view statistics from both N|Solid itself as well as the Chrome developer tools.