| /* |
| * Copyright (c) 2021, Dynatrace LLC. 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.java.security; |
| |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Fork; |
| import org.openjdk.jmh.annotations.Level; |
| 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.TearDown; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.IntStream; |
| |
| import sun.security.util.Cache; |
| |
| @BenchmarkMode(Mode.AverageTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| @Fork(jvmArgsAppend = {"--add-exports", "java.base/sun.security.util=ALL-UNNAMED", "-Xmx1g"}) |
| public class CacheBench { |
| |
| @State(Scope.Benchmark) |
| public static class SharedState { |
| Cache<Integer, Integer> cache; |
| |
| @Param({"20480", "204800", "5120000"}) |
| int size; |
| |
| @Param({"86400", "0"}) |
| int timeout; |
| |
| @Setup |
| public void setup() { |
| cache = Cache.newSoftMemoryCache(size, timeout); |
| IntStream.range(0, size).boxed().forEach(i -> cache.put(i, i)); |
| } |
| } |
| |
| @State(Scope.Thread) |
| public static class GetPutState { |
| Integer[] intArray; |
| int index; |
| |
| @Setup |
| public void setup(SharedState benchState) { |
| intArray = IntStream.range(0, benchState.size + 1).boxed().toArray(Integer[]::new); |
| index = 0; |
| } |
| |
| @TearDown(Level.Invocation) |
| public void tearDown() { |
| index++; |
| if (index >= intArray.length) { |
| index = 0; |
| } |
| } |
| } |
| |
| @Benchmark |
| public void put(SharedState benchState, GetPutState state) { |
| Integer i = state.intArray[state.index]; |
| benchState.cache.put(i, i); |
| } |
| |
| @Benchmark |
| public Integer get(SharedState benchState, GetPutState state) { |
| Integer i = state.intArray[state.index]; |
| return benchState.cache.get(i); |
| } |
| |
| @State(Scope.Thread) |
| public static class RemoveState { |
| Integer[] intArray; |
| int index; |
| SharedState benchState; |
| |
| @Setup |
| public void setup(SharedState benchState) { |
| this.benchState = benchState; |
| intArray = IntStream.range(0, benchState.size).boxed().toArray(Integer[]::new); |
| index = 0; |
| } |
| |
| @TearDown(Level.Invocation) |
| public void tearDown() { |
| // add back removed item |
| Integer i = intArray[index]; |
| benchState.cache.put(i, i); |
| |
| index++; |
| if (index >= intArray.length) { |
| index = 0; |
| } |
| } |
| } |
| |
| @Benchmark |
| public void remove(SharedState benchState, RemoveState state) { |
| Integer i = state.intArray[state.index]; |
| benchState.cache.remove(i); |
| } |
| } |