Mercurial > hg > gc-bench
view src/main/java/org/openjdk/gcbench/wip/TreeMapWrite.java @ 98:15924203aa96
TreeMapWrite
author | shade |
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date | Wed, 04 Jul 2018 12:58:06 +0200 |
parents | src/main/java/org/openjdk/gcbench/wip/BarriersMultiple.java@6ec38e1bea7a |
children |
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/* * Copyright (c) 2018, 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 java.util.TreeMap; import java.util.concurrent.ThreadLocalRandom; import java.util.concurrent.TimeUnit; @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Fork(value = 1, jvmArgsAppend = "-XX:-TieredCompilation") @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @Threads(1) @State(Scope.Benchmark) public class TreeMapWrite { @Param("1000") int size; TreeMap<String, String> map; String[] strs; @Setup public void setup() { map = new TreeMap<>(); strs = new String[size]; for (int c = 0; c < size; c++) { strs[c] = "Key" + ThreadLocalRandom.current().nextInt(); } } @Benchmark public void test() { String k = strs[ThreadLocalRandom.current().nextInt(size)]; String v = strs[ThreadLocalRandom.current().nextInt(size)]; workWith(k, v); } public void workWith(String k, String v) { map.put(k, v); } }