/* * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package org.openjdk.bench.valhalla.corelibs.mapprotos; import org.openjdk.jmh.annotations.Benchmark; import org.openjdk.jmh.annotations.BenchmarkMode; import org.openjdk.jmh.annotations.Fork; import org.openjdk.jmh.annotations.Measurement; import org.openjdk.jmh.annotations.Mode; import org.openjdk.jmh.annotations.OutputTimeUnit; import org.openjdk.jmh.annotations.Param; import org.openjdk.jmh.annotations.Scope; import org.openjdk.jmh.annotations.Setup; import org.openjdk.jmh.annotations.State; import org.openjdk.jmh.annotations.Warmup; import java.util.Arrays; import java.util.HashMap; import java.util.LinkedHashMap; import java.util.Map; import java.util.function.IntFunction; import java.util.concurrent.TimeUnit; /** * Benchmark (mapType) (size) Mode Cnt Score Error Units * XHashMapToArray.testKeySetToArray XHashMap 0 avgt 10 9.996 ± 2.010 ns/op * XHashMapToArray.testKeySetToArray XHashMap 1 avgt 10 4142.267 ± 180.789 ns/op * XHashMapToArray.testKeySetToArray XHashMap 10 avgt 10 4240.651 ± 202.434 ns/op * XHashMapToArray.testKeySetToArray XHashMap 1000 avgt 10 494789.609 ± 13140.044 ns/op * XHashMapToArray.testKeySetToArray XHashMap 100000 avgt 10 60665517.560 ± 2386064.520 ns/op * XHashMapToArray.testKeySetToArray HashMap 0 avgt 10 10.547 ± 1.317 ns/op * XHashMapToArray.testKeySetToArray HashMap 1 avgt 10 30.381 ± 2.341 ns/op * XHashMapToArray.testKeySetToArray HashMap 10 avgt 10 71.436 ± 1.356 ns/op * XHashMapToArray.testKeySetToArray HashMap 1000 avgt 10 6184.091 ± 391.274 ns/op * XHashMapToArray.testKeySetToArray HashMap 100000 avgt 10 635572.324 ± 12811.539 ns/op * XHashMapToArray.testKeySetToArrayTyped XHashMap 0 avgt 10 7.350 ± 1.093 ns/op * XHashMapToArray.testKeySetToArrayTyped XHashMap 1 avgt 10 3949.242 ± 162.359 ns/op * XHashMapToArray.testKeySetToArrayTyped XHashMap 10 avgt 10 4078.345 ± 194.142 ns/op * XHashMapToArray.testKeySetToArrayTyped XHashMap 1000 avgt 10 527815.326 ± 27872.781 ns/op * XHashMapToArray.testKeySetToArrayTyped XHashMap 100000 avgt 10 63033220.728 ± 3078028.203 ns/op * XHashMapToArray.testKeySetToArrayTyped HashMap 0 avgt 10 7.607 ± 0.863 ns/op * XHashMapToArray.testKeySetToArrayTyped HashMap 1 avgt 10 34.312 ± 0.831 ns/op * XHashMapToArray.testKeySetToArrayTyped HashMap 10 avgt 10 105.760 ± 0.670 ns/op * XHashMapToArray.testKeySetToArrayTyped HashMap 1000 avgt 10 9994.524 ± 156.952 ns/op * XHashMapToArray.testKeySetToArrayTyped HashMap 100000 avgt 10 991598.536 ± 12037.671 ns/op * XHashMapToArray.testValuesToArray XHashMap 0 avgt 10 10.078 ± 1.625 ns/op * XHashMapToArray.testValuesToArray XHashMap 1 avgt 10 3798.391 ± 192.066 ns/op * XHashMapToArray.testValuesToArray XHashMap 10 avgt 10 4035.747 ± 181.076 ns/op * XHashMapToArray.testValuesToArray XHashMap 1000 avgt 10 500692.191 ± 17923.078 ns/op * XHashMapToArray.testValuesToArray XHashMap 100000 avgt 10 64450148.368 ± 5112519.509 ns/op * XHashMapToArray.testValuesToArray HashMap 0 avgt 10 10.510 ± 1.691 ns/op * XHashMapToArray.testValuesToArray HashMap 1 avgt 10 40.833 ± 4.335 ns/op * XHashMapToArray.testValuesToArray HashMap 10 avgt 10 70.101 ± 2.298 ns/op * XHashMapToArray.testValuesToArray HashMap 1000 avgt 10 6154.291 ± 173.222 ns/op * XHashMapToArray.testValuesToArray HashMap 100000 avgt 10 647159.888 ± 28626.401 ns/op * XHashMapToArray.testValuesToArrayTyped XHashMap 0 avgt 10 7.440 ± 1.522 ns/op * XHashMapToArray.testValuesToArrayTyped XHashMap 1 avgt 10 3912.895 ± 229.372 ns/op * XHashMapToArray.testValuesToArrayTyped XHashMap 10 avgt 10 4221.022 ± 248.348 ns/op * XHashMapToArray.testValuesToArrayTyped XHashMap 1000 avgt 10 508209.209 ± 20811.752 ns/op * XHashMapToArray.testValuesToArrayTyped XHashMap 100000 avgt 10 63079414.458 ± 3164118.537 ns/op * XHashMapToArray.testValuesToArrayTyped HashMap 0 avgt 10 7.948 ± 1.340 ns/op * XHashMapToArray.testValuesToArrayTyped HashMap 1 avgt 10 35.295 ± 2.964 ns/op * XHashMapToArray.testValuesToArrayTyped HashMap 10 avgt 10 102.239 ± 1.685 ns/op * XHashMapToArray.testValuesToArrayTyped HashMap 1000 avgt 10 9913.778 ± 577.131 ns/op * XHashMapToArray.testValuesToArrayTyped HashMap 100000 avgt 10 1178696.903 ± 39326.922 ns/op * Finished running test 'micro:valhalla.corelibs.XHashMapToArray' */ @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @Warmup(iterations = 3, time = 500, timeUnit = TimeUnit.MILLISECONDS) @Measurement(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS) @Fork(1) @State(Scope.Thread) public class HashMapToArray { private IntFunction> mapSupplier; Map map; @Param(value = {"org.openjdk.bench.valhalla.corelibs.mapprotos.YHashMap", "org.openjdk.bench.valhalla.corelibs.mapprotos.XHashMap", "java.util.HashMap"}) private String mapType; @Param({"1", "10", "1000", "100000"}) public int size; @Setup public void setup() { try { Class mapClass = Class.forName(mapType); mapSupplier = (size) -> newInstance(mapClass, size); } catch (Exception ex) { System.out.printf("%s: %s%n", mapType, ex.getMessage()); return; } map = mapSupplier.apply(0); for (int i = 0; i < size; i++) { map.put(i, i * i); } } Map newInstance(Class mapClass, int size) { try { return (Map)mapClass.getConstructor(int.class).newInstance(size); } catch (Exception ex) { throw new RuntimeException("failed", ex); } } @Benchmark public Object[] testKeySetToArray() { return map.keySet().toArray(); } @Benchmark public Object[] testKeySetToArrayTyped() { return map.keySet().toArray(new Integer[0]); } @Benchmark public Object[] testValuesToArray() { return map.values().toArray(); } @Benchmark public Object[] testValuesToArrayTyped() { return map.values().toArray(new Integer[0]); } }