From fc4867eafbf9714bfd053cc594b6763197859001 Mon Sep 17 00:00:00 2001 From: Martin Odersky Date: Thu, 4 Feb 2016 18:06:03 +0100 Subject: Disable benchmark test The test checks that Scala collections perform within 10x of Java collections. That's not something we need to test for dotty. And because of the heavily parallel execution of the tests it does not always hold. This is the second time in a a month that this particular test failed on jenkins. I think we lost enough cycles on it. --- tests/disabled/run/t5293-map.scala | 88 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 tests/disabled/run/t5293-map.scala (limited to 'tests/disabled') diff --git a/tests/disabled/run/t5293-map.scala b/tests/disabled/run/t5293-map.scala new file mode 100644 index 000000000..1ef7d97e5 --- /dev/null +++ b/tests/disabled/run/t5293-map.scala @@ -0,0 +1,88 @@ + + + +import scala.collection.JavaConverters._ + + + +object Test extends dotty.runtime.LegacyApp { + + def bench(label: String)(body: => Unit): Long = { + val start = System.nanoTime + + 0.until(10).foreach(_ => body) + + val end = System.nanoTime + + //println("%s: %s ms".format(label, (end - start) / 1000.0 / 1000.0)) + + end - start + } + + def benchJava(values: java.util.Map[Int, Int]) = { + bench("Java Map") { + val m = new java.util.HashMap[Int, Int] + + m.putAll(values) + } + } + + def benchScala(values: Iterable[(Int, Int)]) = { + bench("Scala Map") { + val m = new scala.collection.mutable.HashMap[Int, Int] + + m ++= values + } + } + + def benchScalaSorted(values: Iterable[(Int, Int)]) = { + bench("Scala Map sorted") { + val m = new scala.collection.mutable.HashMap[Int, Int] + + m ++= values.toArray.sorted + } + } + + def benchScalaPar(values: Iterable[(Int, Int)]) = { + bench("Scala ParMap") { + val m = new scala.collection.parallel.mutable.ParHashMap[Int, Int] map { x => x } + + m ++= values + } + } + + val total = 50000 + val values = (0 until total) zip (0 until total) + val map = scala.collection.mutable.HashMap.empty[Int, Int] + + map ++= values + + // warmup + for (x <- 0 until 5) { + benchJava(map.asJava) + benchScala(map) + benchScalaPar(map) + benchJava(map.asJava) + benchScala(map) + benchScalaPar(map) + } + + val javamap = benchJava(map.asJava) + val scalamap = benchScala(map) + val scalaparmap = benchScalaPar(map) + + // println(javamap) + // println(scalamap) + // println(scalaparmap) + + assert(scalamap < (javamap * 10), "scalamap: " + scalamap + " vs. javamap: " + javamap) + assert(scalaparmap < (javamap * 10), "scalaparmap: " + scalaparmap + " vs. javamap: " + javamap) +} + + + + + + + + -- cgit v1.2.3