multithreading - Akka: how to config Router, dispatcher to make a better performance? -


i have played around akka 2 weeks , still confused basic concept.

i have simple pattern contains 3 kinds of actors:

  • master
  • worker
  • reporter

i config these actors following:

master

master use following dispatcher roundrobinrouter(10):

mailbox-capacity = 10000 executor = "fork-join-executor" fork-join-executor {   parallelism-min = 0   parallelism-max = 600   parallelism-factor = 3.0 }

worker

i have several workers(ref) in system, receive messages master, , each of them use router of roundrobinrouter(10). 

type = dispatcher executor = "fork-join-executor" fork-join-executor {   parallelism-min = 0   parallelism-max = 600   parallelism-factor = 3.0 } mailbox-capacity = 100000

notifier

is actor used receive result worker, , counting up. uses same dispatcher workers.

i have made adjustment on parallelism parameters , router, performance seems no change. takes 80 seconds consume 10 million tasks, of each takes @ least 500 ms finish.

so got me there, if dispatcher acts thread pool, if actor use dispatcher without using router, means there 1 instance. code in receive block executed parallel?

just in case else in code messed things up: gist

and virtual machine runs program:

  • 32-bit ubuntu 12.04 lts
  • memory 5.0 gib
  • intel® core™ i5-2500 cpu @ 3.30ghz × 4

sorry put question unclear here. if there thing can improve performance please tell me. advise welcome. thank in advance.

update

sorry! 10 million task, not 100 million! bad, sorry!


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