gistfile1.scala

val firstLongProcessActor = actorOf[FirstLongProcessActor].start
val secondLongProcessActor = actorOf[SecondLongProcessActor].start
val startTime = currentTimeMillis
val firstFuture = firstLongProcessActor !!! 1000
val secondFuture = secondLongProcessActor !!! 1000
Futures.awaitAll(List(firstFuture, secondFuture))
val timeTaken = currentTimeMillis - startTime
println("Process took " + timeTaken + "ms.")

// Output is:
// 1: Sleeping for 1000ms.
// 2: Sleeping for 1000ms.
// 1: Slept for 1000ms.
// 2: Slept for 1000ms.
// Process took 1006ms.