1 /* 2 * Copyright (c) 2017, 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 TestVerifyJCStress 26 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 27 * @key gc 28 * @requires vm.gc.Shenandoah & !vm.graal.enabled 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * 32 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 33 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 34 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify 35 * TestVerifyJCStress 36 * 37 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 38 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 39 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify 40 * TestVerifyJCStress 41 */ 42 43 /* 44 * @test TestVerifyJCStress 45 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 46 * @key gc 47 * @requires vm.gc.Shenandoah & !vm.graal.enabled 48 * @modules java.base/jdk.internal.misc 49 * java.management 50 * 51 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 52 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 53 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 54 * TestVerifyJCStress 55 * 56 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 57 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact 58 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 59 * TestVerifyJCStress 60 */ 61 62 /* 63 * @test TestVerifyJCStress 64 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 65 * @key gc 66 * @requires vm.gc.Shenandoah & !vm.graal.enabled 67 * @modules java.base/jdk.internal.misc 68 * java.management 69 * 70 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 71 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu 72 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 73 * TestVerifyJCStress 74 */ 75 76 import java.util.*; 77 import java.util.concurrent.*; 78 import java.util.concurrent.locks.*; 79 80 public class TestVerifyJCStress { 81 82 public static void main(String[] args) throws Exception { 83 ExecutorService service = Executors.newFixedThreadPool( 84 2, 85 r -> { 86 Thread t = new Thread(r); 87 t.setDaemon(true); 88 return t; 89 } 90 ); 91 92 for (int c = 0; c < 10000; c++) { 93 final Test[] tests = new Test[10000]; 94 for (int t = 0; t < tests.length; t++) { 95 tests[t] = new Test(); 96 } 97 98 Future<?> f1 = service.submit(() -> { 99 IntResult2 r = new IntResult2(); 100 for (Test test : tests) { 101 test.RL_Us(r); 102 } 103 }); 104 Future<?> f2 = service.submit(() -> { 105 for (Test test : tests) { 106 test.WLI_Us(); 107 } 108 }); 109 110 f1.get(); 111 f2.get(); 112 } 113 } 114 115 public static class IntResult2 { 116 int r1, r2; 117 } 118 119 public static class Test { 120 final StampedLock lock = new StampedLock(); 121 122 int x, y; 123 124 public void RL_Us(IntResult2 r) { 125 StampedLock lock = this.lock; 126 long stamp = lock.readLock(); 127 r.r1 = x; 128 r.r2 = y; 129 lock.unlock(stamp); 130 } 131 132 public void WLI_Us() { 133 try { 134 StampedLock lock = this.lock; 135 long stamp = lock.writeLockInterruptibly(); 136 x = 1; 137 y = 2; 138 lock.unlock(stamp); 139 } catch (InterruptedException e) { 140 throw new RuntimeException(e); 141 } 142 } 143 } 144 145 }