JohnnyRotten wrote on Mar 13, 2013, 13:16: The region processing cannot be very CPU and/or RAM intensive at all. How could it be? 23 servers CPU's and RAM for tens of thousands (at least) of players at once. The amount of CPU/RAM slice per player must be very thin indeed for this to work at all.
You're being too literal. A "server" in this case would be a server cluster composed of an unknown number of nodes. There's at least one beefy machine doing all of the database work, they may have a proxy layer, nodes doing the regional simulation, etc. We have no way of knowing precisely how many individual drive a server cluster, but I'd expect there to be a lot of them handling the regional sim.