OverloadCompileQueueTest.java revision 12158:0fe2815ffa74 
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 OverloadCompileQueueTest
26 * @summary stressing code cache by overloading compile queues
27 * @library /test/lib /
28 * @modules java.base/jdk.internal.misc
29 *          java.management
30 *
31 * @ignore 8166554
32 * @build sun.hotspot.WhiteBox
33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
34 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 *                   -XX:+WhiteBoxAPI
37 *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
38 *                   -XX:-SegmentedCodeCache
39 *                   compiler.codecache.stress.OverloadCompileQueueTest
40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
41 *                   -XX:+WhiteBoxAPI
42 *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
43 *                   -XX:+SegmentedCodeCache
44 *                   compiler.codecache.stress.OverloadCompileQueueTest
45 */
46
47package compiler.codecache.stress;
48
49import jdk.test.lib.Platform;
50
51import java.lang.reflect.Method;
52import java.util.stream.IntStream;
53
54public class OverloadCompileQueueTest implements Runnable {
55    private static final int MAX_SLEEP = 10000;
56    private static final String METHOD_TO_ENQUEUE = "method";
57    private static final int LEVEL_SIMPLE = 1;
58    private static final int LEVEL_FULL_OPTIMIZATION = 4;
59    private static final boolean TIERED_COMPILATION
60            = Helper.WHITE_BOX.getBooleanVMFlag("TieredCompilation");
61    private static final int TIERED_STOP_AT_LEVEL
62            = Helper.WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue();
63    private static final int[] AVAILABLE_LEVELS;
64    static {
65        if (TIERED_COMPILATION) {
66            AVAILABLE_LEVELS = IntStream
67                    .rangeClosed(LEVEL_SIMPLE, TIERED_STOP_AT_LEVEL)
68                    .toArray();
69        } else if (Platform.isServer()) {
70            AVAILABLE_LEVELS = new int[] { LEVEL_FULL_OPTIMIZATION };
71        } else if (Platform.isClient() || Platform.isMinimal()) {
72            AVAILABLE_LEVELS = new int[] { LEVEL_SIMPLE };
73        } else {
74            throw new Error("TESTBUG: unknown VM: " + Platform.vmName);
75        }
76    }
77
78    public static void main(String[] args) {
79        if (Platform.isInt()) {
80            throw new Error("TESTBUG: test can not be run in interpreter");
81        }
82        new CodeCacheStressRunner(new OverloadCompileQueueTest()).runTest();
83    }
84
85    public OverloadCompileQueueTest() {
86        Helper.startInfiniteLoopThread(this::lockUnlock, 100L);
87    }
88
89    @Override
90    public void run() {
91        Helper.TestCase obj = Helper.TestCase.get();
92        Class clazz = obj.getClass();
93        Method mEnqueue;
94        try {
95            mEnqueue = clazz.getMethod(METHOD_TO_ENQUEUE);
96        } catch (NoSuchMethodException | SecurityException e) {
97            throw new Error(String.format(
98                    "TESTBUG: cannot get method '%s' of class %s",
99                    METHOD_TO_ENQUEUE, clazz.getName()), e);
100        }
101        for (int compLevel : AVAILABLE_LEVELS) {
102            Helper.WHITE_BOX.enqueueMethodForCompilation(mEnqueue, compLevel);
103        }
104    }
105
106    private void lockUnlock() {
107        try {
108            int sleep = Helper.RNG.nextInt(MAX_SLEEP);
109            Helper.WHITE_BOX.lockCompilation();
110            Thread.sleep(sleep);
111        } catch (InterruptedException e) {
112            throw new Error("TESTBUG: lockUnlocker thread was unexpectedly interrupted", e);
113        } finally {
114            Helper.WHITE_BOX.unlockCompilation();
115        }
116    }
117
118}
119