1 /*
   2  * Copyright (c) 2007, 2018, 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
  26  * @key stress gc randomness
  27  *
  28  * @summary converted from VM Testbase gc/gctests/MemoryEaterMT.
  29  * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
  30  *
  31  * @library /vmTestbase
  32  *          /test/lib
  33  * @run driver jdk.test.lib.FileInstaller . .
  34  * @run main/othervm -XX:-UseGCOverheadLimit gc.gctests.MemoryEaterMT.MemoryEaterMT
  35  */
  36 
  37 package gc.gctests.MemoryEaterMT;
  38 
  39 import nsk.share.gc.*;
  40 
  41 /**
  42  * This test simply does Algorithms.eatMemory() in a loop
  43  * in multiple threads.
  44  */
  45 public class MemoryEaterMT extends ThreadedGCTest {
  46 
  47     private class Eater implements Runnable, OOMStress {
  48         public void run() {
  49             Algorithms.eatMemory(getExecutionController());
  50         }
  51     }
  52 
  53     protected Runnable createRunnable(int i) {
  54         return new Eater();
  55     }
  56 
  57     public static void main(String args[]) {
  58         GC.runTest(new MemoryEaterMT(), args);
  59     }
  60 }