1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test OverloadCompileQueueTest
* @key stress randomness
* @summary stressing code cache by overloading compile queues
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
*
* @build sun.hotspot.WhiteBox
* compiler.codecache.stress.TestCaseImpl
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
* -XX:-SegmentedCodeCache
* compiler.codecache.stress.OverloadCompileQueueTest
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
* -XX:+SegmentedCodeCache
* compiler.codecache.stress.OverloadCompileQueueTest
*/
package compiler.codecache.stress;
import jdk.test.lib.Platform;
import jdk.test.lib.Utils;
import java.lang.reflect.Method;
import java.util.stream.IntStream;
import java.util.Random;
class LockUnlockThread extends Thread {
private static final int MAX_SLEEP = 10000;
private static final int DELAY_BETWEEN_LOCKS = 100;
private final Random rng = Utils.getRandomInstance();
public volatile boolean isActive = true;
@Override
public void run() {
try {
while (isActive) {
int timeInLockedState = rng.nextInt(MAX_SLEEP);
Helper.WHITE_BOX.lockCompilation();
Thread.sleep(timeInLockedState);
Helper.WHITE_BOX.unlockCompilation();
Thread.sleep(DELAY_BETWEEN_LOCKS);
}
} catch (InterruptedException e) {
if (isActive) {
throw new Error("TESTBUG: LockUnlockThread was unexpectedly interrupted", e);
}
} finally {
Helper.WHITE_BOX.unlockCompilation();
}
}
}
public class OverloadCompileQueueTest implements Runnable {
private static final String METHOD_TO_ENQUEUE = "method";
private static final int LEVEL_SIMPLE = 1;
private static final int LEVEL_FULL_OPTIMIZATION = 4;
private static final boolean TIERED_COMPILATION
= Helper.WHITE_BOX.getBooleanVMFlag("TieredCompilation");
private static final int TIERED_STOP_AT_LEVEL
= Helper.WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue();
private static final int[] AVAILABLE_LEVELS;
static {
if (TIERED_COMPILATION) {
AVAILABLE_LEVELS = IntStream
.rangeClosed(LEVEL_SIMPLE, TIERED_STOP_AT_LEVEL)
.toArray();
} else if (Platform.isServer() && !Platform.isEmulatedClient()) {
AVAILABLE_LEVELS = new int[] { LEVEL_FULL_OPTIMIZATION };
} else if (Platform.isClient() || Platform.isMinimal() || Platform.isEmulatedClient()) {
AVAILABLE_LEVELS = new int[] { LEVEL_SIMPLE };
} else {
throw new Error("TESTBUG: unknown VM: " + Platform.vmName);
}
}
public static void main(String[] args) throws InterruptedException {
LockUnlockThread lockUnlockThread = new LockUnlockThread();
lockUnlockThread.start();
if (Platform.isInt()) {
throw new Error("TESTBUG: test can not be run in interpreter");
}
new CodeCacheStressRunner(new OverloadCompileQueueTest()).runTest();
lockUnlockThread.isActive = false;
lockUnlockThread.interrupt();
lockUnlockThread.join();
}
@Override
public void run() {
Helper.TestCase obj = Helper.TestCase.get();
Class clazz = obj.getClass();
Method mEnqueue;
try {
mEnqueue = clazz.getMethod(METHOD_TO_ENQUEUE);
} catch (NoSuchMethodException | SecurityException e) {
throw new Error(String.format(
"TESTBUG: cannot get method '%s' of class %s",
METHOD_TO_ENQUEUE, clazz.getName()), e);
}
for (int compLevel : AVAILABLE_LEVELS) {
Helper.WHITE_BOX.enqueueMethodForCompilation(mEnqueue, compLevel);
}
}
}
|
