I track the pubsub subscribers on each client connection, but I'm not sure what you mean by a multiplexed process for the pubsub channel. Depending on your tra

I track the pubsub subscribers on each client connection, but I'm not sure what you mean by a multiplexed process for the pubsub channel. Depending on your traffic patterns, considering the broadcast activity is potentially important, and then you might worry more about CPU than RAM. I use redis myself, but gnatsd or redis cluster may help with scaling the pubsub part of the system.