akka - why actor module not support concurrent mailbox? -

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i'm fresh akka, actor,i wonder why can't find concurrent mailbox use.
result, must define dispatch actor send work actor.many times, not care data's sequence , in situation make message sequence cost time.

i find create actor router props choice:

val actorref: actorref = context.actorof(props[myactor]         .withrouter(roundrobinpool(nrofinstances = 4)), name = "myactor")    //or  context.actorof(roundrobinpool(5).props(props[myactor]), "myactor")

it create 4 actor instance return 1 actorref -- roundrobinpool handle , dispatch message these actors.


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