exercise 09 task 3

.gitignore

+# scala/sbt
+target/
+.bsp/
+*.class
+
+# intellij
+*.iml
+*.ipr
+*.iws
+.idea
+out/

README.md

+# Exercise 11
+
+Skeleton for task 3.
+
+## sbt-jmh
+
+This project uses the jmh plugin of sbt. You can run the benchmarks through `sbt Jmh/run`.

build.sbt

+ThisBuild / version := "0.9.0"
+
+ThisBuild / scalaVersion := "3.3.1"
+
+lazy val root = (project in file("."))
+  .settings(
+    name := "exercise11"
+  )
+
+enablePlugins(JmhPlugin)
+

project/build.properties

+sbt.version = 1.9.8

project/plugins.sbt

+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.7")
+

src/main/scala/collections/ArrayBufferOps.scala

+package collections
+
+import org.openjdk.jmh.annotations.*
+import org.openjdk.jmh.infra.Blackhole
+
+import java.util.concurrent.TimeUnit
+import scala.collection.mutable.ArrayBuffer
+import scala.util.Random
+
+class ArrayBufferOps:
+  ???
\ No newline at end of file

src/main/scala/collections/ListBufferOps.scala

+package collections
+
+import org.openjdk.jmh.annotations.*
+import org.openjdk.jmh.infra.Blackhole
+
+import java.util.concurrent.TimeUnit
+import scala.collection.mutable.ListBuffer
+import scala.util.Random
+
+class ListBufferOps:
+  ???
\ No newline at end of file

src/main/scala/collections/ListOps.scala

+package collections
+
+import org.openjdk.jmh.annotations.*
+import org.openjdk.jmh.infra.Blackhole
+
+import java.util.concurrent.TimeUnit
+import scala.util.Random
+
+class ListOps:
+  ???
\ No newline at end of file

src/main/scala/objects/ObjectCreationTime.scala

+package objects
+
+import org.openjdk.jmh.annotations.*
+import org.openjdk.jmh.infra.Blackhole
+
+import java.util.concurrent.TimeUnit
+
+@BenchmarkMode(Array(Mode.AverageTime))
+@OutputTimeUnit(TimeUnit.NANOSECONDS)
+@Warmup(iterations = 10, time = 100, timeUnit = TimeUnit.MILLISECONDS)
+@Measurement(iterations = 100, time = 10, timeUnit = TimeUnit.MILLISECONDS)
+@Fork(1)
+@State(Scope.Thread)
+class ObjectCreationTime:
+  @Benchmark
+  def noop(): Unit = ()
+
+  @Benchmark
+  def createObject(): Unit =
+    SomeConcept()
+
+class SomeConcept
\ No newline at end of file

src/main/scala/sort/ArraySort.scala

+package sort
+
+import org.openjdk.jmh.annotations.*
+
+import java.util.concurrent.TimeUnit
+import collection.immutable.ArraySeq
+import scala.util.Random
+
+@BenchmarkMode(Array(Mode.AverageTime))
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@Warmup(iterations = 10, time = 200, timeUnit = TimeUnit.MILLISECONDS)
+@Measurement(iterations = 40, time = 100, timeUnit = TimeUnit.MILLISECONDS)
+@Fork(1)
+@State(Scope.Benchmark)
+class ArraySort:
+  @Param(Array("1000", "10000", "100000"))
+  var size: Int = _
+
+  var array: ArraySeq[Int] = _
+
+  @Setup
+  def fillArray(): Unit = array = ArraySeq.fill(size)(Random.nextInt())
+
+  @Benchmark
+  def sortAscending(): ArraySeq[Int] = array.sorted
+
+  @Benchmark
+  def sortDescending(): ArraySeq[Int] = array.sortWith(_>_)
\ No newline at end of file