This tutorial will dig into some more nitty gritty details on how to build high scalability, high performance websocket servers for broadcast like workflows.

Will go into features like:

minimizing work done in handlers
using asio thread pool mode
teaming multiple endpoints
setting accept queue depth
tuning compile time buffer sizes
prepared messages
flow control
basic operating system level tuning, particularly increasing file descriptor limits.
measuring performance with wsperf / autobahn
tuning permessage-deflate compression settings