Absolutely not, it's the memcached model. There are N threads (like 4 or 8 or one per core) serving all the clients in a multiplexed way like is happening now w

Absolutely not, it's the memcached model. There are N threads (like 4 or 8 or one per core) serving all the clients in a multiplexed way like is happening now with a single client. If we'll go the extra mile implementing also background slow operations, we'll send them in another "ops" thread, will block the client, and will resurrect the client and send the result when available. Like we do currently for blocking operations like BLPOP.