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