Not OP, but a solar flare can shoot 20 million packets per second..

http://www.solarflare.com/09-11-12-Solarflares-Industry-Lead...

You need to totally bypass the linux kernel to do this, and have high perf C or Java code...

That's raw network (TCP/UDP) packets, not WebSocket frames/messages. Plus that product is a solution to a hardware problem, not a software problem. It doesn't relate at all.

Just for anyone else who sees that and thinks "WTF": it's 20M PPS across two ports. (14,880,952 is the max for 10GbE.)