The way Erlang does it is to use buckets so it looks like a single queue to the user code but really is more like multiple queues behind the scene. Scales extre

The way Erlang does it is to use buckets so it looks like a single queue to the user code but really is more like multiple queues behind the scene. Scales extremely well. It's certainly not "just moving a pointer to a piece of shared memory" though... https://www.erlang.org/blog/parallel-signal-sending-optimization/ https://www.erlang.org/blog/parallel-signal-sending-optimiza...