Mercurial > hg > gc-bench
view src/main/java/org/openjdk/gcbench/wip/HashMapTraverse.java @ 94:99796a2ba4e5
New tests
author | shade |
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date | Mon, 05 Mar 2018 11:16:08 +0100 |
parents | src/main/java/org/openjdk/gcbench/wip/WriteBarrierUTF8Scan.java@d04b4bbbc39f |
children |
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/* * Copyright (c) 2017, Red Hat Inc. 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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.gcbench.wip; import org.openjdk.jmh.annotations.*; import org.openjdk.jmh.infra.Blackhole; import java.nio.charset.Charset; import java.util.HashMap; import java.util.Map; import java.util.concurrent.TimeUnit; @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Fork(1) @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.MICROSECONDS) @Threads(1) @State(Scope.Benchmark) public class HashMapTraverse { @Param({"1", "100", "10000", "1000000"}) int size; Map<String, String> map; @Setup public void setup() { map = new HashMap<>(); for (int c = 0; c < size; c++) { map.put("Key " + c, "Value " + c); } } @Benchmark public void test(Blackhole bh) { for (Map.Entry<String, String> kv : map.entrySet()) { bh.consume(kv.getKey()); bh.consume(new Object()); } } }