Where's the difference between using this pubsub implementation vs. using Redis one? I think that overall Redis one is way better (stability, performance).
I don't know. It may be better, I haven't looked at it yet. I wrote this implementation last December when redis didn't have pubsub yet. I thought it would be nice to share it as an example of the simplicity and power of node/javascript.
How can you state that the stability and performance are better? I've been running one instance of this node pubsub server for 5 months without restarting it. You may be right, but have you actually benchmarked it?