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 }