title: web socket, max clients?
body: <p>In a single page application:
  When using ajax, the ajax request gets the data and the connection is closed. This allows thousands of users to use the system.</p>
  
  <p>In web sockets, each "page" opens a socket connection (to a namespace) and keeps it live however this has thousands of idle connections, this can't be good for performance?</p>
  
  <p>Also, doing tests on firefox, the ajax connection is 20ms latency while each call in socket.io connection is 200ms.</p>