What kind of work is performed by the actors? If you already have 20000 actors I don't think the advice about delegating to futures will help.
/Patrik ons 18 nov. 2015 kl. 20:36 skrev <jimhazen2...@gmail.com>: > Be sure you aren't just separating your actors onto their own collective > executor, but put the work each actor is doing onto an executor. The goal > is to drive as much work as possible into these executors, and free up > akka's executors to simply drive this work into to those other executors as > quickly as possible. > > At a high level this would look like a receive block that only contains > code wrapped within a Future. This puts the load on the child executor and > frees up akka to drive this executor as hard as it can. > > If you don't do this you're just moving your single threaded actor > handling from one dispatcher to the next, but aren't increasing internal > actor concurrency. > > -Jim > > -- Sent from my mobile device > > On Nov 18, 2015, at 11:12 AM, Flo B. <olftheb...@googlemail.com> wrote: > > Thanks again for your interesting points, jim > > I already have a separate dispatcher for the actors and one for the > system. > > Am Mittwoch, 18. November 2015 18:30:13 UTC+1 schrieb Jim Hazen: >> >> That's possible. Your actor won't be able to get more work until it >> completes its receive. You could: >> >> A: look into actor pool/routers. This will give you more receive blocks >> to work with, increasing concurrency. >> B: look into spending less time within your receive block, maybe by >> delegating the real work to a dispatched Future. If you go this route >> you'll have the ability to use a thread-pool-dispatcher for the >> longer/blocking work and your fork-join-dispatcher for your very fast >> receive executions. >> >> I tend to end up with option B. With my Spray services, using the >> dispatch directive takes the real work out of http dispatching thread. With >> actors that are mostly IO, since Spray IO is async, you get essentially the >> same thing. So when I find I have dense cpu intensive code, I offload that >> work into another dispatcher and let the actor drive work into this >> ecexutor as quickly as it can. >> >> At the very least, option B should help you drive up cpu utilization. >> >> -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > > You received this message because you are subscribed to a topic in the > Google Groups "Akka User List" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/akka-user/EW_1nk0EiOY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > akka-user+unsubscr...@googlegroups.com. > > > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to akka-user+unsubscr...@googlegroups.com. > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
