1 /* 2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test ThresholdNotificationsTest 26 * @summary testing of getUsageThreshold() 27 * @library /test/lib / 28 * @requires vm.flavor != "minimal" 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * 32 * @build sun.hotspot.WhiteBox 33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing 36 * -XX:+WhiteBoxAPI -XX:-MethodFlushing -XX:CompileCommand=compileonly,null::* 37 * -XX:+SegmentedCodeCache 38 * compiler.codecache.jmx.ThresholdNotificationsTest 39 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing 40 * -XX:+WhiteBoxAPI -XX:-MethodFlushing -XX:CompileCommand=compileonly,null::* 41 * -XX:-SegmentedCodeCache 42 * compiler.codecache.jmx.ThresholdNotificationsTest 43 */ 44 45 package compiler.codecache.jmx; 46 47 import jdk.test.lib.Asserts; 48 import jdk.test.lib.Utils; 49 import sun.hotspot.code.BlobType; 50 51 import javax.management.ListenerNotFoundException; 52 import javax.management.Notification; 53 import javax.management.NotificationEmitter; 54 import javax.management.NotificationListener; 55 import java.lang.management.ManagementFactory; 56 import java.lang.management.MemoryNotificationInfo; 57 import java.lang.management.MemoryPoolMXBean; 58 59 public class ThresholdNotificationsTest implements NotificationListener { 60 61 private final static long WAIT_TIME = 10000L; 62 private volatile long counter; 63 private final BlobType btype; 64 65 public static void main(String[] args) { 66 for (BlobType bt : BlobType.getAvailable()) { 67 if (CodeCacheUtils.isCodeHeapPredictable(bt)) { 68 new ThresholdNotificationsTest(bt).runTest(); 69 } 70 } 71 } 72 73 public ThresholdNotificationsTest(BlobType btype) { 74 this.btype = btype; 75 counter = 0L; 76 CodeCacheUtils.disableCollectionUsageThresholds(); 77 } 78 79 @Override 80 public void handleNotification(Notification notification, Object handback) { 81 String nType = notification.getType(); 82 String poolName 83 = CodeCacheUtils.getPoolNameFromNotification(notification); 84 // consider code cache events only 85 if (CodeCacheUtils.isAvailableCodeHeapPoolName(poolName)) { 86 Asserts.assertEQ(MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED, 87 nType, "Unexpected event received: " + nType); 88 if (poolName.equals(btype.getMemoryPool().getName())) { 89 counter++; 90 } 91 } 92 } 93 94 protected void runTest() { 95 int iterationsCount 96 = Integer.getInteger("jdk.test.lib.iterations", 1); 97 MemoryPoolMXBean bean = btype.getMemoryPool(); 98 ((NotificationEmitter) ManagementFactory.getMemoryMXBean()). 99 addNotificationListener(this, null, null); 100 for (int i = 0; i < iterationsCount; i++) { 101 CodeCacheUtils.hitUsageThreshold(bean, btype); 102 } 103 Asserts.assertTrue( 104 Utils.waitForCondition( 105 () -> (CodeCacheUtils.isCodeHeapPredictable(btype) ? 106 (counter == iterationsCount) : (counter >= iterationsCount)), 107 WAIT_TIME), 108 "Couldn't receive expected notifications count"); 109 try { 110 ((NotificationEmitter) ManagementFactory.getMemoryMXBean()). 111 removeNotificationListener(this); 112 } catch (ListenerNotFoundException ex) { 113 throw new AssertionError("Can't remove notification listener", ex); 114 } 115 System.out.printf("INFO: Scenario finished successfully for %s%n", 116 bean.getName()); 117 } 118 }