1 | import akka.actor.typed.scaladsl.Behaviors |
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2 | import akka.actor.typed.scaladsl.LoggerOps |
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3 | import akka.actor.typed.{ ActorRef, ActorSystem, Behavior } |
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4 | import java.util.concurrent.atomic.AtomicInteger |
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5 | import akka.event.Logging |
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6 | import akka.actor.typed.DispatcherSelector |
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7 | import java.util.concurrent.Semaphore |
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8 | |
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9 | object DynamicActor { |
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10 | final case class Dummy( cnt: Int ) |
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11 | |
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12 | def apply(): Behavior[Dummy] = Behaviors.receive { (context, message) => |
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13 | if ( message.cnt >= DynamicMain.times ) { |
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14 | if ( DynamicMain.trials.get() > 0 ) { // ignore trial 1 |
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15 | println( s"${(System.nanoTime() - DynamicMain.startTime) / DynamicMain.times}" ) |
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16 | // println( s"${DynamicMain.times} ${(System.nanoTime() - DynamicMain.startTime) * 1E-9}s" ) |
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17 | } // if |
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18 | if ( DynamicMain.trials.incrementAndGet() == DynamicMain.NumTrials + 1 ) { |
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19 | DynamicMain.system ! DynamicMain.Stop() |
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20 | } else { |
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21 | DynamicMain.startTime = System.nanoTime() // reset for next trial |
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22 | context.self ! Dummy( 0 ) |
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23 | } // if |
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24 | Behaviors.same |
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25 | } else { |
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26 | DynamicMain.system ! DynamicMain.Start( message.cnt + 1 ) |
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27 | Behaviors.stopped |
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28 | } |
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29 | } |
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30 | } |
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31 | |
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32 | object DynamicMain { |
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33 | sealed trait MainMessages |
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34 | final case class Start( cnt: Int ) extends MainMessages |
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35 | final case class Stop() extends MainMessages |
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36 | |
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37 | val trials = new AtomicInteger(0) |
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38 | val sem = new Semaphore(0) |
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39 | |
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40 | var actor_cnt = 0; |
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41 | var system : ActorSystem[MainMessages] = null |
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42 | var startTime = System.nanoTime() |
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43 | var times = 2_000_000; var NumTrials = 5 |
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44 | |
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45 | def apply(): Behavior[MainMessages] = Behaviors.setup { context => |
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46 | Behaviors.receiveMessage { message => |
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47 | message match { |
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48 | case Start( cnt: Int ) => |
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49 | val actor = context.spawn(DynamicActor(), "actor_" + actor_cnt , DispatcherSelector.fromConfig("akka.dispatcher")) |
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50 | actor_cnt += 1 |
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51 | actor ! DynamicActor.Dummy( cnt ) |
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52 | Behaviors.same |
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53 | case Stop() => |
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54 | sem.release() |
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55 | Behaviors.stopped |
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56 | } |
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57 | } |
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58 | } |
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59 | |
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60 | def main( args: Array[String] ): Unit = { |
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61 | def usage() = { |
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62 | println( "Usage: [ times (> 0) ]" ); |
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63 | System.exit( 0 ); |
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64 | } |
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65 | |
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66 | args.length match { |
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67 | case 2 => |
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68 | if ( args(1) != "d" ) { NumTrials = args(1).toInt } |
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69 | if ( args(0) != "d" ) { times = args(0).toInt } |
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70 | if ( times < 1 ) usage() |
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71 | case 1 => |
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72 | if ( args(0) != "d" ) { times = args(0).toInt } |
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73 | if ( times < 1 ) usage() |
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74 | case 0 => |
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75 | case _ => |
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76 | usage() |
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77 | } // match |
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78 | |
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79 | system = ActorSystem( DynamicMain(), "Dynamic" ) |
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80 | system ! Start( 0 ) |
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81 | sem.acquire() |
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82 | } |
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83 | } |
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84 | |
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85 | // Local Variables: // |
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86 | // tab-width: 4 // |
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87 | // mode: java // |
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88 | // compile-command: "sbt --warn -J-Xmx32g \"run\"" // |
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89 | // End: // |
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