UsageThresholdExceededTest.java revision 8623:8835879bc34a 
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
24import jdk.test.lib.Asserts;
25import java.lang.management.MemoryPoolMXBean;
26import 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 */
43public 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 = Integer.getInteger("jdk.test.lib.iterations", 1);
55        for (BlobType btype : BlobType.getAvailable()) {
56            new UsageThresholdExceededTest(btype, iterationsCount).runTest();
57        }
58    }
59
60    protected void runTest() {
61        MemoryPoolMXBean bean = btype.getMemoryPool();
62        long oldValue = bean.getUsageThresholdCount();
63        for (int i = 0; i < iterations; i++) {
64            CodeCacheUtils.hitUsageThreshold(bean, btype);
65        }
66        CodeCacheUtils.assertEQorGTE(btype, bean.getUsageThresholdCount(), oldValue + iterations,
67                "Unexpected threshold usage count");
68        System.out.printf("INFO: Scenario finished successfully for %s%n", bean.getName());
69    }
70}
71