118 lines
4.2 KiB
Java
118 lines
4.2 KiB
Java
/*
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* Copyright (c) 2002, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @key stress randomness
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*
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* @summary converted from VM Testbase gc/gctests/ThreadGC.
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* VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
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* VM Testbase readme:
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* This tests attempts to stress the garbage collector my making
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* synchronous calls to the garbage collector after producing garbage.
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* The garbage collector is invoked in a separate thread.
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* The test runs for one minute (see nsk.share.runner.ThreadsRunner and
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* nsk.share.runner.RunParams. It passes if no exceptions are generated.
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*
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* @library /vmTestbase
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* /test/lib
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* @run main/othervm gc.gctests.ThreadGC.ThreadGC -gp random(arrays) -ms low
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*/
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package gc.gctests.ThreadGC;
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import nsk.share.gc.*;
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import nsk.share.gc.gp.*;
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import java.util.*;
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public class ThreadGC extends ThreadedGCTest implements GarbageProducerAware, MemoryStrategyAware {
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private GarbageProducer garbageProducer;
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private MemoryStrategy memoryStrategy;
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private Reclaimer reclaimer;
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private int count;
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private long size;
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private class Devourer implements Runnable {
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private Object[] arr = null;
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private int index;
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public void run() {
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if (arr == null || index >= count) {
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arr = null;
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arr = new Object[count];
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index = 0;
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synchronized (reclaimer) {
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reclaimer.notify();
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}
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}
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arr[index] = garbageProducer.create(size);
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++index;
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}
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}
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private class Reclaimer implements Runnable {
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private long waitTime = 1000;
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public void run() {
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try {
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synchronized (this) {
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this.wait(waitTime);
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}
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} catch (InterruptedException e) {
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}
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System.gc();
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}
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}
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protected Runnable createRunnable(int i) {
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if (i == 0)
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return new Devourer();
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else if (i == 1) {
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reclaimer = new Reclaimer();
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return reclaimer;
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} else
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return null;
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}
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public void run() {
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size = GarbageUtils.getArraySize(runParams.getTestMemory(), memoryStrategy);
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count = GarbageUtils.getArrayCount(runParams.getTestMemory(), memoryStrategy);
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runParams.setIterations(count);
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super.run();
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}
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public static void main(String[] args) {
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GC.runTest(new ThreadGC(), args);
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}
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public void setGarbageProducer(GarbageProducer garbageProducer) {
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this.garbageProducer = garbageProducer;
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}
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public void setMemoryStrategy(MemoryStrategy memoryStrategy) {
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this.memoryStrategy = memoryStrategy;
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}
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}
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