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 UsageThresholdExceededTest 26 * @summary verifying that getUsageThresholdCount() returns correct value 27 * after threshold has been hit 28 * @library /test/lib / 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 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 36 * -XX:+WhiteBoxAPI -XX:-UseCodeCacheFlushing -XX:-MethodFlushing 37 * -XX:CompileCommand=compileonly,null::* 38 * -XX:+SegmentedCodeCache 39 * compiler.codecache.jmx.UsageThresholdExceededTest 40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 41 * -XX:+WhiteBoxAPI -XX:-UseCodeCacheFlushing -XX:-MethodFlushing 42 * -XX:CompileCommand=compileonly,null::* 43 * -XX:-SegmentedCodeCache 44 * compiler.codecache.jmx.UsageThresholdExceededTest 45 */ 46 47 package compiler.codecache.jmx; 48 49 import sun.hotspot.code.BlobType; 50 51 import java.lang.management.MemoryPoolMXBean; 52 53 public class UsageThresholdExceededTest { 54 55 protected final int iterations; 56 private final BlobType btype; 57 58 public UsageThresholdExceededTest(BlobType btype, int iterations) { 59 this.btype = btype; 60 this.iterations = iterations; 61 } 62 63 public static void main(String[] args) { 64 int iterationsCount = Integer.getInteger("jdk.test.lib.iterations", 1); 65 for (BlobType btype : BlobType.getAvailable()) { 66 if (CodeCacheUtils.isCodeHeapPredictable(btype)) { 67 new UsageThresholdExceededTest(btype, iterationsCount).runTest(); 68 } 69 } 70 } 71 72 protected void runTest() { 73 MemoryPoolMXBean bean = btype.getMemoryPool(); 74 long oldValue = bean.getUsageThresholdCount(); 75 for (int i = 0; i < iterations; i++) { 76 CodeCacheUtils.hitUsageThreshold(bean, btype); 77 } 78 CodeCacheUtils.assertEQorGTE(btype, bean.getUsageThresholdCount(), oldValue + iterations, 79 "Unexpected threshold usage count"); 80 System.out.printf("INFO: Scenario finished successfully for %s%n", bean.getName()); 81 } 82 }