| /* |
| * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved. |
| * |
| * 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. |
| * |
| */ |
| |
| /** |
| * @test TestMemoryMXBeans |
| * @summary Test JMX memory beans |
| * @key gc |
| * @requires vm.gc.Shenandoah & !vm.graal.enabled |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g TestMemoryMXBeans -1 1024 |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms1g -Xmx1g TestMemoryMXBeans 1024 1024 |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms128m -Xmx1g TestMemoryMXBeans 128 1024 |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms1g -Xmx1g -XX:ShenandoahUncommitDelay=0 TestMemoryMXBeans 1024 1024 |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms128m -Xmx1g -XX:ShenandoahUncommitDelay=0 TestMemoryMXBeans 128 1024 |
| */ |
| |
| import java.lang.management.*; |
| import java.util.*; |
| |
| public class TestMemoryMXBeans { |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length < 2) { |
| throw new IllegalStateException("Should provide expected heap sizes"); |
| } |
| |
| long initSize = 1L * Integer.parseInt(args[0]) * 1024 * 1024; |
| long maxSize = 1L * Integer.parseInt(args[1]) * 1024 * 1024; |
| |
| // wait for GC to uncommit |
| Thread.sleep(1000); |
| |
| testMemoryBean(initSize, maxSize); |
| } |
| |
| public static void testMemoryBean(long initSize, long maxSize) { |
| MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean(); |
| long heapInit = memoryMXBean.getHeapMemoryUsage().getInit(); |
| long heapCommitted = memoryMXBean.getHeapMemoryUsage().getCommitted(); |
| long heapMax = memoryMXBean.getHeapMemoryUsage().getMax(); |
| long nonHeapInit = memoryMXBean.getNonHeapMemoryUsage().getInit(); |
| long nonHeapCommitted = memoryMXBean.getNonHeapMemoryUsage().getCommitted(); |
| long nonHeapMax = memoryMXBean.getNonHeapMemoryUsage().getMax(); |
| |
| if (initSize > 0 && heapInit != initSize) { |
| throw new IllegalStateException("Init heap size is wrong: " + heapInit + " vs " + initSize); |
| } |
| if (maxSize > 0 && heapMax != maxSize) { |
| throw new IllegalStateException("Max heap size is wrong: " + heapMax + " vs " + maxSize); |
| } |
| if (initSize > 0 && maxSize > 0 && initSize != maxSize && heapCommitted == heapMax) { |
| throw new IllegalStateException("Committed heap size is max: " + heapCommitted + |
| " (init: " + initSize + ", max: " + maxSize + ")"); |
| } |
| if (initSize > 0 && maxSize > 0 && initSize == maxSize && heapCommitted != heapMax) { |
| throw new IllegalStateException("Committed heap size is not max: " + heapCommitted + |
| " (init: " + initSize + ", max: " + maxSize + ")"); |
| } |
| if (initSize > 0 && heapCommitted < initSize) { |
| throw new IllegalStateException("Committed heap size is below min: " + heapCommitted + |
| " (init: " + initSize + ", max: " + maxSize + ")"); |
| } |
| } |
| } |