1 /* 2 * Copyright (c) 2014, 2015, 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 import jdk.test.lib.Asserts; 25 import java.lang.management.MemoryPoolMXBean; 26 import sun.hotspot.code.BlobType; 27 28 /* 29 * @test UsageThresholdExceededTest 30 * @library /testlibrary /../../test/lib 31 * @modules java.base/sun.misc 32 * java.management 33 * @build UsageThresholdExceededTest 34 * @run main ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache -XX:-UseCodeCacheFlushing 38 * -XX:-MethodFlushing -XX:CompileCommand=compileonly,null::* 39 * UsageThresholdExceededTest 40 * @summary verifying that getUsageThresholdCount() returns correct value 41 * after threshold has been hit 42 */ 43 public class UsageThresholdExceededTest { 44 45 protected final int iterations; 46 private final BlobType btype; 47 48 public UsageThresholdExceededTest(BlobType btype, int iterations) { 49 this.btype = btype; 50 this.iterations = iterations; 51 } 52 53 public static void main(String[] args) { 54 int iterationsCount = 55 Integer.getInteger("jdk.test.lib.iterations", 1); 56 for (BlobType btype : BlobType.getAvailable()) { 57 if (CodeCacheUtils.isCodeHeapPredictable(btype)) { 58 new UsageThresholdExceededTest(btype, iterationsCount) 59 .runTest(); 60 } 61 } 62 } 63 64 protected void runTest() { 65 MemoryPoolMXBean bean = btype.getMemoryPool(); 66 long oldValue = bean.getUsageThresholdCount(); 67 for (int i = 0; i < iterations; i++) { 68 CodeCacheUtils.hitUsageThreshold(bean, btype); 69 } 70 Asserts.assertEQ(bean.getUsageThresholdCount(), oldValue + iterations, 71 "Unexpected threshold usage count"); 72 System.out.printf("INFO: Scenario finished successfully for %s%n", 73 bean.getName()); 74 } 75 }