I asked the Erlang guys why I can log to a single process in Erlang without any problems. The scheduler could well be round-robin but since the message queue is hard-wired to each Erlang process they found an elegant way out. -- There is a small fix in the scheduler for the standard producer/consumer problem: A process that sends to a receiver having a large receive queue gets punished with a large reduction (number of function calls) count for the send operation, and will therefore get smaller scheduling slots. -- Thanks, Joel -- http://wagerlabs.com/