Benchmark of enum toString in Scala

object Test {
  def main(args: Array[String]): Unit = {
    println("hi there")
    val threads = 1 to 3 map {new MyRunner(_)}
//    val threads = 1 to 1 map {new MyRunner(_)}
    threads.foreach(_.start)
    val ts1 = System.currentTimeMillis()
    threads.foreach(_.join)
    val ts2 = System.currentTimeMillis()

    val td = ts2 - ts1
    val tds = threads.map(_.td).sum
    println("final values:")
    MyEnum.values.foreach(v => println(v.toString))
    println(s"total: wait= $td, time=$tds")
  }
}

class MyRunner(tid: Int) extends Thread {
  var td: Long = 0
  override def run(): Unit = {
    val v1 = MyEnum.V1
    val ts1 = System.currentTimeMillis()
    for(i <- 0 to 10000000) {
      v1.toString()
    }
    val ts2 = System.currentTimeMillis()
    td = ts2 - ts1
    println(s"thread $tid time=$td")

  }
}

object MyEnum extends Enumeration {
  val V1, V2, V3, V4, V5 = Value
}