1 /*
2 * Copyright (c) 2007, 2023, 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 * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
26 */
27
28 /* @test id=booleanArr_medium @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp booleanArr -ms medium */
29 /* @test id=floatArr_high @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp floatArr -ms high */
30 /* @test id=objectArr_low @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp objectArr -ms low */
31 /* @test id=objectArr_medium @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp objectArr -ms medium */
32 /* @test id=objectArr_high @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp objectArr -ms high */
33 /* @test id=h_doubleArr_low @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp hashed(doubleArr) -ms low */
34 /* @test id=h_doubleArr_high @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp hashed(doubleArr) -ms high */
35 /* @test id=h_objectArr_low @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp hashed(objectArr) -ms low */
36 /* @test id=h_objectArr_medium @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp hashed(objectArr) -ms medium */
37 /* @test id=h_objectArr_high @key stress randomness @library /vmTestbase /test/lib @run main/othervm -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle3 -gp hashed(objectArr) -ms high */
38
39 package gc.ArrayJuggle;
40
41 import nsk.share.test.*;
42 import nsk.share.gc.*;
43 import nsk.share.gc.gp.*;
44
45 /**
46 * This test randomly replaces elements of an array with new objects
47 * using given garbage producer and memory strategy. This class was
48 * renamed from Juggle01 to Juggle3 to better distinguice it from
49 * Juggle1.
50 */
51 public class Juggle3 extends ThreadedGCTest implements GarbageProducerAware, MemoryStrategyAware {
52 private GarbageProducer garbageProducer;
53 private MemoryStrategy memoryStrategy;
54 private Object[] array;
55 private Object[] indexLocks;
56 long objectSize;
57
58 private class Juggler implements Runnable {
59 public void run() {
60 int index = LocalRandom.nextInt(array.length);
61 // Synchronizing to prevent multiple object creation for the same index at the same time.
62 synchronized (indexLocks[index]) {
63 array[index] = null;
64 array[index] = garbageProducer.create(objectSize);
65 }
66 }
67 }
68
69 protected Runnable createRunnable(int i) {
70 return new Juggler();
71 }
72
73 public void run() {
74 log.debug("Garbage producer: " + garbageProducer);
75 log.debug("Memory strategy: " + memoryStrategy);
76 long memory = runParams.getTestMemory();
77 int objectCount = memoryStrategy.getCount(memory);
78 objectSize = memoryStrategy.getSize(memory);
79 log.debug("Object count: " + objectCount);
80 log.debug("Object size: " + objectSize);
81 array = new Object[objectCount - 1];
82 indexLocks = new Object[objectCount - 1];
83 for (int i = 0; i < indexLocks.length; i++) {
84 indexLocks[i] = new Object();
85 }
86 super.run();
87 }
88
89 public void setGarbageProducer(GarbageProducer garbageProducer) {
90 this.garbageProducer = garbageProducer;
91 }
92
93 public void setMemoryStrategy(MemoryStrategy memoryStrategy) {
94 this.memoryStrategy = memoryStrategy;
95 }
96
97 public static void main(String[] args) {
98 GC.runTest(new Juggle3(), args);
99 }
100 }