On Tuesday, September 19, 2017 at 9:53:36 PM UTC+2, Patrik Nordwall wrote:
>
> You can try and compare Balance, Partition and PartitionHub.
>

Is the fundamental difference between GroupBy and Partition/PartitionHub 
the fact that the latter gives you more fine-grain control over the 
internal functioning? 

Otherwise it should be similar regarding parallelism and CPU utilization , 
right? 

So far I benchmarked best results with : 
        .withAttributes(
          Attributes.asyncBoundary
            .and(Attributes.inputBuffer(16,128))
            .and(ActorAttributes.dispatcher(
"akka.stream.log-processing-dispatcher"))
        )

  stream {
    log-processing-dispatcher {
      type = Dispatcher
      executor = "fork-join-executor"
      fork-join-executor {
        parallelism-min = 6
        parallelism-factor = 1.0
        parallelism-max = 8
      }
      throughput = 10
    }
  }


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