test/hotspot/jtreg/vmTestbase/gc/gctests/MemoryEaterMT/MemoryEaterMT.java

/*
 * Copyright (c) 2007, 2018, 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.
 *
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 * questions.
 */

/*
 * @test
 * @key stress gc
 *
 * @summary converted from VM Testbase gc/gctests/MemoryEaterMT.
 * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 * @run main/othervm -XX:-UseGCOverheadLimit gc.gctests.MemoryEaterMT.MemoryEaterMT
 */

package gc.gctests.MemoryEaterMT;

import nsk.share.gc.*;

/**
 * This test simply does Algorithms.eatMemory() in a loop
 * in multiple threads.
 */
public class MemoryEaterMT extends ThreadedGCTest {

    private class Eater implements Runnable, OOMStress {
        public void run() {
            Algorithms.eatMemory(getExecutionController());
        }
    }

    protected Runnable createRunnable(int i) {
        return new Eater();
    }

    public static void main(String args[]) {
        GC.runTest(new MemoryEaterMT(), args);
    }
}