UsageThresholdExceededTest.java revision 7634:c17923cd9925 
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
24import com.oracle.java.testlibrary.Asserts;
25import java.lang.management.MemoryPoolMXBean;
26import 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 */
41public 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}
74