1 /*
   2  * Copyright (c) 2021, Red Hat, Inc. 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 /*
  26  * @test id=default
  27  * @bug 8268127
  28  * @summary when heap is too small for regions to align to large page size, should fallback to regular page size
  29  *
  30  * @run main/othervm -XX:+UseShenandoahGC -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  31  * @run main/othervm -XX:+UseShenandoahGC         -Xmx17m TestLargePagesWithSmallHeap
  32  * @run main/othervm -XX:+UseShenandoahGC -Xms17m         TestLargePagesWithSmallHeap
  33  *
  34  * @run main/othervm -XX:+UseShenandoahGC -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  35  * @run main/othervm -XX:+UseShenandoahGC         -Xmx17m TestLargePagesWithSmallHeap
  36  * @run main/othervm -XX:+UseShenandoahGC -Xms17m         TestLargePagesWithSmallHeap
  37  */
  38 
  39 /*
  40  * @test id=lp
  41  *
  42  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  43  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages         -Xmx17m TestLargePagesWithSmallHeap
  44  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages -Xms17m         TestLargePagesWithSmallHeap
  45  *
  46  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  47  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages         -Xmx17m TestLargePagesWithSmallHeap
  48  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseLargePages -Xms17m         TestLargePagesWithSmallHeap
  49  */
  50 
  51 /*
  52  * @test id=thp
  53  * @requires os.family == "linux"
  54  *
  55  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  56  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages         -Xmx17m TestLargePagesWithSmallHeap
  57  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages -Xms17m         TestLargePagesWithSmallHeap
  58  *
  59  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages -Xms17m -Xmx17m TestLargePagesWithSmallHeap
  60  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages         -Xmx17m TestLargePagesWithSmallHeap
  61  * @run main/othervm -XX:+UseShenandoahGC -XX:+UseTransparentHugePages -Xms17m         TestLargePagesWithSmallHeap
  62  */
  63 
  64 public class TestLargePagesWithSmallHeap {
  65     public static void main(String[] args) {
  66         // Everything is checked on initialization
  67     }
  68 }