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 TestHeapUncommit 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 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 32 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 33 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify 34 * TestHeapUncommit 35 * 36 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 37 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 38 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify 39 * TestHeapUncommit 40 * 41 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 42 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 43 * -XX:+ShenandoahDegeneratedGC 44 * TestHeapUncommit 45 * 46 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 47 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 48 * -XX:-ShenandoahDegeneratedGC 49 * TestHeapUncommit 50 */ 51 52 /* 53 * @test TestHeapUncommit 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 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 59 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 60 * -XX:+ShenandoahVerify 61 * TestHeapUncommit 62 * 63 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 64 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 65 * TestHeapUncommit 66 * 67 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 68 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static 69 * TestHeapUncommit 70 * 71 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 72 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact 73 * TestHeapUncommit 74 * 75 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 76 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive 77 * TestHeapUncommit 78 * 79 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 80 * -XX:+UseShenandoahGC 81 * -XX:-UseTLAB -XX:+ShenandoahVerify 82 * TestHeapUncommit 83 */ 84 85 /* 86 * @test TestHeapUncommit 87 * @key gc 88 * @requires vm.gc.Shenandoah & !vm.graal.enabled & (vm.bits == "64") 89 * 90 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages 91 * -XX:+UseShenandoahGC 92 * -XX:+ShenandoahVerify 93 * TestHeapUncommit 94 * 95 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages 96 * -XX:+UseShenandoahGC 97 * TestHeapUncommit 98 * 99 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages 100 * -XX:+UseShenandoahGC 101 * -XX:-UseTLAB -XX:+ShenandoahVerify 102 * TestHeapUncommit 103 */ 104 105 import java.util.Random; 106 107 public class TestHeapUncommit { 108 109 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation 110 111 static volatile Object sink; 112 113 public static void main(String[] args) throws Exception { 114 final int min = 0; 115 final int max = 384 * 1024; 116 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2)); 117 118 Random r = new Random(); 119 for (long c = 0; c < count; c++) { 120 sink = new int[min + r.nextInt(max - min)]; 121 } 122 } 123 124 }