133 lines
4.1 KiB
Java
133 lines
4.1 KiB
Java
/*
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* Copyright (c) 2021, Dynatrace LLC. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.security;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.BenchmarkMode;
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import org.openjdk.jmh.annotations.Fork;
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import org.openjdk.jmh.annotations.Level;
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import org.openjdk.jmh.annotations.Measurement;
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import org.openjdk.jmh.annotations.Mode;
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import org.openjdk.jmh.annotations.OutputTimeUnit;
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import org.openjdk.jmh.annotations.Param;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.TearDown;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.IntStream;
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import org.openjdk.jmh.annotations.Warmup;
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import sun.security.util.Cache;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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@Fork(value = 3, jvmArgs = {"--add-exports", "java.base/sun.security.util=ALL-UNNAMED"})
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@Warmup(iterations = 5, time = 1)
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@Measurement(iterations = 5, time = 1)
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public class CacheBench {
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@State(Scope.Benchmark)
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public static class SharedState {
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Cache<Integer, Integer> cache;
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@Param({"20480", "204800", "5120000"})
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int size;
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@Param({"86400", "0"})
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int timeout;
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@Setup
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public void setup() {
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cache = Cache.newSoftMemoryCache(size, timeout);
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IntStream.range(0, size).boxed().forEach(i -> cache.put(i, i));
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}
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}
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@State(Scope.Thread)
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public static class GetPutState {
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Integer[] intArray;
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int index;
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@Setup
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public void setup(SharedState benchState) {
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intArray = IntStream.range(0, benchState.size + 1).boxed().toArray(Integer[]::new);
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index = 0;
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}
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@TearDown(Level.Invocation)
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public void tearDown() {
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index++;
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if (index >= intArray.length) {
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index = 0;
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}
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}
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}
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@Benchmark
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public void put(SharedState benchState, GetPutState state) {
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Integer i = state.intArray[state.index];
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benchState.cache.put(i, i);
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}
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@Benchmark
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public Integer get(SharedState benchState, GetPutState state) {
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Integer i = state.intArray[state.index];
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return benchState.cache.get(i);
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}
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@State(Scope.Thread)
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public static class RemoveState {
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Integer[] intArray;
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int index;
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SharedState benchState;
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@Setup
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public void setup(SharedState benchState) {
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this.benchState = benchState;
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intArray = IntStream.range(0, benchState.size).boxed().toArray(Integer[]::new);
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index = 0;
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}
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@TearDown(Level.Invocation)
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public void tearDown() {
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// add back removed item
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Integer i = intArray[index];
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benchState.cache.put(i, i);
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index++;
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if (index >= intArray.length) {
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index = 0;
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}
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}
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}
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@Benchmark
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public void remove(SharedState benchState, RemoveState state) {
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Integer i = state.intArray[state.index];
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benchState.cache.remove(i);
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}
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}
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