Anyone want to take a stab on exactly what happened that made this test crash it? 4k requests / second would mean that if you had 100 people connected, it would spawn 400,000 outbound messages per second on the server side, or 4,000 for each user. That wouldn't overwhelm an http connection limit but I guess it would overwhelm the processors on the server side. Plus perhaps make some browsers crash from JS trying to process so much incoming information without disconnecting.