1 /*
   2  * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /*
  25  * @test TestAlwaysPreTouch
  26  * @summary Check that Shenandoah's AlwaysPreTouch does not fire asserts
  27  * @key gc
  28  *
  29  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch                                  -Xmx1g TestAlwaysPreTouch
  30  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -XX:ConcGCThreads=2              -Xmx1g TestAlwaysPreTouch
  31  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -XX:ParallelGCThreads=2          -Xmx1g TestAlwaysPreTouch
  32  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch                         -Xms128m -Xmx1g TestAlwaysPreTouch
  33  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch                           -Xms1g -Xmx1g TestAlwaysPreTouch
  34  */
  35 
  36 public class TestAlwaysPreTouch {
  37 
  38     public static void main(String[] args) throws Exception {
  39         // checking the initialization before entering main()
  40     }
  41 
  42 }