Better docs on multiplexing

I may be incorrect, but it is my understanding that the multiplexer effectively batches Redis commands across several requests that are running simultaneously on a given box in order to increase throughput / reduce latency. If I'm incorrect, just let me know and stop reading 😄

If that is correct, could you add a document explaining how you do this? Anything from a high-level overview to pointing at lines of code that implement it would be great. I'm just curious in understanding how this works. For example, do you queue up requests for N milliseconds and then send them?

Start by tracing how the multiplexer handles Redis commands from several simultaneous requests. Explain whether commands are batched, including when they are sent, and point readers to the relevant implementation lines. Done means the documentation gives a high-level overview and answers the request’s timing question.