And batch event messages together as much as possible.
JSON has proven itself to be really slow
(for example, encoding/json.Marshaler is a slow interface),
and browsers have significant overhead per WS message.
Commands are still sent as JSON, sending them in binary
would be a laborious rewrite without measurable merits.
The xP server now only prints debug output when requested,
because that was another source of major slowdowns.
Přemysl Eric Janouch