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 TestAllocObjects
  26  * @summary Acceptance tests: collector can withstand allocation
  27  * @key gc
  28  * @requires vm.gc.Shenandoah
  29  *
  30  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=passive      -XX:+ShenandoahDegeneratedGC     -XX:+ShenandoahVerify TestAllocObjects
  31  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=passive      -XX:-ShenandoahDegeneratedGC     -XX:+ShenandoahVerify TestAllocObjects
  32  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=passive      -XX:+ShenandoahDegeneratedGC                           TestAllocObjects
  33  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=passive      -XX:-ShenandoahDegeneratedGC                           TestAllocObjects
  34  *
  35  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive   -XX:+ShenandoahOOMDuringEvacALot -XX:+ShenandoahVerify TestAllocObjects
  36  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive   -XX:+ShenandoahAllocFailureALot  -XX:+ShenandoahVerify TestAllocObjects
  37  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive   -XX:+ShenandoahOOMDuringEvacALot                       TestAllocObjects
  38  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive   -XX:+ShenandoahAllocFailureALot                        TestAllocObjects
  39  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive                                                          TestAllocObjects
  40  *
  41  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=adaptive     -XX:+ShenandoahVerify TestAllocObjects
  42  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=traversal    -XX:+ShenandoahVerify TestAllocObjects
  43  *
  44  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=adaptive     TestAllocObjects
  45  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=static       TestAllocObjects
  46  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=compact      TestAllocObjects
  47  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=traversal    TestAllocObjects
  48  *
  49  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=adaptive   -XX:+ShenandoahSuspendibleWorkers TestAllocObjects
  50  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=static     -XX:+ShenandoahSuspendibleWorkers TestAllocObjects
  51  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=compact    -XX:+ShenandoahSuspendibleWorkers TestAllocObjects
  52  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=traversal  -XX:+ShenandoahSuspendibleWorkers TestAllocObjects
  53  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g -XX:ShenandoahGCHeuristics=aggressive -XX:+ShenandoahSuspendibleWorkers TestAllocObjects
  54  */
  55 
  56 import java.util.Random;
  57 
  58 public class TestAllocObjects {
  59 
  60     static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
  61 
  62     static volatile Object sink;
  63 
  64     public static void main(String[] args) throws Exception {
  65         long count = TARGET_MB * 1024 * 1024 / 16;
  66         for (long c = 0; c < count; c++) {
  67             sink = new Object();
  68         }
  69     }
  70 
  71 }