viktorklang

Scala Future optimizations

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Flavio W. Brasil, July 2017

Problem

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viktorklang

First: Close all other applications, so that they don't interfere with the benchmark.

Second: Make sure that your computer is adequately cooled during the benchmark so it doesn't start thermal throttling.

Third: clone https://github.com/viktorklang/scala-futures/

Fourth: git checkout wip-optimizations-√

Fifth: start sbt

viktorklang

scalaVersion := "2.11.8"
scalaOrganization := "org.typelevel"

libraryDependencies ++= Seq(
  "org.typelevel" %% "cats" % "0.9.0",
  "org.atnos" %% "eff" % "4.0.0"
)

addCompilerPlugin("org.spire-math" %% "kind-projector" % "0.9.3")

viktorklang

object StreamDeadlock {
  def main(args: Array[String]): Unit = {
  import akka.actor._
  import akka.stream._
  import akka.stream.scaladsl._
  import scala.concurrent._

  implicit val system = ActorSystem()

  val noFusingMaterializer = ActorMaterializer(ActorMaterializerSettings(system).withAutoFusing(false))

viktorklang

package ai

/**
  * Created by HamsterofDeath on 3/14/2017.
  * Polished by √ on 3/14/2017
  */
import java.text.DecimalFormat

import scala.util.Random

viktorklang

Keybase proof

I hereby claim:

• I am viktorklang on github.
• I am viktorklang (https://keybase.io/viktorklang) on keybase.
• I have a public key ASD8bMnlRJBBEHVUgA0_fuzExfoV__wn6K6teoI6d3QDKwo

To claim this, I am signing this object:

viktorklang

#WARNING: Use at your own risk. No warranties expressed or implied. YMMV. Drive responsibly. Eat healthy.

#First, `cd` into the parent dir for all of your `sbt`/`maven` projects (I assume you have one of those)
find "$(cd ..; pwd)" -type d -name "target" -print0 | sudo xargs -0 tmutil addexclusion -p

viktorklang

##########
# Win10 Initial Setup Script
# Author: Disassembler <disassembler@dasm.cz>
# Version: 1.7, 2016-08-15

# dasm's script: https://github.com/Disassembler0/Win10-Initial-Setup-Script/

# THIS IS A PERSONALIZED VERSION
# This script leaves more MS defaults on, including MS security features.
# Tweaked based on personal preferences for @alirobe 2016-11-16 - v1.7.1

viktorklang

#Use at your own risk. No warranties expressed or implied. YMMV. Drive responsibly. Eat healthy.

#for ZSH, I typically put these in my .zshrc
function restart_audio() {
  command sudo killall coreaudiod &&
  sudo launchctl unload /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist &&
  sudo launchctl load /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist &&
  echo 'Audio daemon restarted'
}

viktorklang

scala> import akka.stream._
import akka.stream._

scala> import akka.stream.scaladsl._
import akka.stream.scaladsl._

scala> import akka.stream.stage._
import akka.stream.stage._

scala> import scala.language.higherKinds