1 /* 2 * Copyright (c) 2017, 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 TestSieveObjects 27 * @summary Acceptance tests: collector can deal with retained objects 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 * TestSieveObjects 35 * 36 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 37 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 38 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify 39 * TestSieveObjects 40 * 41 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 42 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 43 * -XX:+ShenandoahDegeneratedGC 44 * TestSieveObjects 45 * 46 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 47 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 48 * -XX:-ShenandoahDegeneratedGC 49 * TestSieveObjects 50 */ 51 52 /* 53 * @test TestSieveObjects 54 * @summary Acceptance tests: collector can deal with retained objects 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 61 * TestSieveObjects 62 * 63 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 64 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive 65 * -XX:+ShenandoahAllocFailureALot 66 * TestSieveObjects 67 * 68 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 69 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive 70 * TestSieveObjects 71 * 72 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 73 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 74 * -XX:+ShenandoahVerify 75 * TestSieveObjects 76 * 77 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 78 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 79 * TestSieveObjects 80 * 81 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 82 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static 83 * TestSieveObjects 84 * 85 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 86 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact 87 * TestSieveObjects 88 * 89 * @run main/othervm/timeout=240 -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 90 * -XX:+UseShenandoahGC 91 * -XX:-UseTLAB -XX:+ShenandoahVerify 92 * TestSieveObjects 93 */ 94 95 import java.util.concurrent.ThreadLocalRandom; 96 97 public class TestSieveObjects { 98 99 static final int COUNT = 100_000_000; 100 static final int WINDOW = 1_000_000; 101 static final int PAYLOAD = 100; 102 103 static final MyObject[] arr = new MyObject[WINDOW]; 104 105 public static void main(String[] args) throws Exception { 106 int rIdx = 0; 107 for (int c = 0; c < COUNT; c++) { 108 MyObject v = arr[rIdx]; 109 if (v != null) { 110 if (v.x != rIdx) { 111 throw new IllegalStateException("Illegal value at index " + rIdx + ": " + v.x); 112 } 113 if (ThreadLocalRandom.current().nextInt(1000) > 100) { 114 arr[rIdx] = null; 115 } 116 } else { 117 if (ThreadLocalRandom.current().nextInt(1000) > 500) { 118 arr[rIdx] = new MyObject(rIdx); 119 } 120 } 121 rIdx++; 122 if (rIdx >= WINDOW) { 123 rIdx = 0; 124 } 125 } 126 } 127 128 public static class MyObject { 129 public int x; 130 public byte[] payload; 131 132 public MyObject(int x) { 133 this.x = x; 134 this.payload = new byte[PAYLOAD]; 135 } 136 } 137 138 }