1 /*
   2  * Copyright (c) 2016, 2018, 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 TestAllocObjects
  27  * @summary Acceptance tests: collector can withstand allocation
  28  * @key gc
  29  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  30  *
  31  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  32  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
  33  *      -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
  34  *      TestAllocObjects
  35  *
  36  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  37  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
  38  *      -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
  39  *      TestAllocObjects
  40  *
  41  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  42  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
  43  *      -XX:+ShenandoahDegeneratedGC
  44  *      TestAllocObjects
  45  *
  46  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  47  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
  48  *      -XX:-ShenandoahDegeneratedGC
  49  *      TestAllocObjects
  50  */
  51 
  52 /*
  53  * @test TestAllocObjects
  54  * @summary Acceptance tests: collector can withstand allocation
  55  * @key gc
  56  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  57  *
  58  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  59  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  60  *      -XX:+ShenandoahOOMDuringEvacALot -XX:+ShenandoahVerify
  61  *      TestAllocObjects
  62  *
  63  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  64  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  65  *      -XX:+ShenandoahAllocFailureALot -XX:+ShenandoahVerify
  66  *      TestAllocObjects
  67  *
  68  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  69  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  70  *      -XX:+ShenandoahOOMDuringEvacALot
  71  *      TestAllocObjects
  72  *
  73  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  74  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  75  *      -XX:+ShenandoahAllocFailureALot
  76  *      TestAllocObjects
  77  *
  78  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  79  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  80  *      TestAllocObjects
  81  *
  82  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  83  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  84  *      -XX:+ShenandoahSuspendibleWorkers
  85  *      TestAllocObjects
  86  *
  87  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  88  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
  89  *      -XX:+ShenandoahVerify
  90  *      TestAllocObjects
  91  *
  92  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  93  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
  94  *      TestAllocObjects
  95  *
  96  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
  97  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
  98  *      -XX:+ShenandoahSuspendibleWorkers
  99  *      TestAllocObjects
 100  *
 101  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
 102  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
 103  *      TestAllocObjects
 104  *
 105  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
 106  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
 107  *      -XX:+ShenandoahSuspendibleWorkers
 108  *      TestAllocObjects
 109  *
 110  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
 111  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
 112  *      TestAllocObjects
 113  *
 114  * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
 115  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
 116  *      -XX:+ShenandoahSuspendibleWorkers
 117  *      TestAllocObjects
 118  */
 119 
 120 import java.util.Random;
 121 
 122 public class TestAllocObjects {
 123 
 124     static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
 125 
 126     static volatile Object sink;
 127 
 128     public static void main(String[] args) throws Exception {
 129         long count = TARGET_MB * 1024 * 1024 / 16;
 130         for (long c = 0; c < count; c++) {
 131             sink = new Object();
 132         }
 133     }
 134 
 135 }