1 /* 2 * Copyright (c) 2017, 2020, 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 TestPeriodicGC 26 * @summary Test that periodic GC is working 27 * @key gc 28 * @requires vm.gc.Shenandoah & !vm.graal.enabled 29 * @library /test/lib 30 * @run driver TestPeriodicGC 31 */ 32 33 import java.util.*; 34 35 import jdk.test.lib.Asserts; 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class TestPeriodicGC { 40 testWith(String msg, boolean periodic, String... args)41 public static void testWith(String msg, boolean periodic, String... args) throws Exception { 42 String[] cmds = Arrays.copyOf(args, args.length + 2); 43 cmds[args.length] = TestPeriodicGC.class.getName(); 44 cmds[args.length + 1] = "test"; 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds); 46 47 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 48 output.shouldHaveExitValue(0); 49 if (periodic && !output.getOutput().contains("Trigger: Time since last GC")) { 50 throw new AssertionError(msg + ": Should have periodic GC in logs"); 51 } 52 if (!periodic && output.getOutput().contains("Trigger: Time since last GC")) { 53 throw new AssertionError(msg + ": Should not have periodic GC in logs"); 54 } 55 } 56 main(String[] args)57 public static void main(String[] args) throws Exception { 58 if (args.length > 0 && args[0].equals("test")) { 59 Thread.sleep(5000); // stay idle 60 return; 61 } 62 63 String[] enabled = new String[] { 64 "adaptive", 65 "compact", 66 "static", 67 }; 68 69 for (String h : enabled) { 70 testWith("Zero interval with " + h, 71 false, 72 "-Xlog:gc", 73 "-XX:+UnlockDiagnosticVMOptions", 74 "-XX:+UnlockExperimentalVMOptions", 75 "-XX:+UseShenandoahGC", 76 "-XX:ShenandoahGCHeuristics=" + h, 77 "-XX:ShenandoahGuaranteedGCInterval=0" 78 ); 79 80 testWith("Short interval with " + h, 81 true, 82 "-Xlog:gc", 83 "-XX:+UnlockDiagnosticVMOptions", 84 "-XX:+UnlockExperimentalVMOptions", 85 "-XX:+UseShenandoahGC", 86 "-XX:ShenandoahGCHeuristics=" + h, 87 "-XX:ShenandoahGuaranteedGCInterval=1000" 88 ); 89 90 testWith("Long interval with " + h, 91 false, 92 "-Xlog:gc", 93 "-XX:+UnlockDiagnosticVMOptions", 94 "-XX:+UnlockExperimentalVMOptions", 95 "-XX:+UseShenandoahGC", 96 "-XX:ShenandoahGCHeuristics=" + h, 97 "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long 98 ); 99 } 100 101 testWith("Zero interval with iu mode", 102 false, 103 "-Xlog:gc", 104 "-XX:+UnlockDiagnosticVMOptions", 105 "-XX:+UnlockExperimentalVMOptions", 106 "-XX:+UseShenandoahGC", 107 "-XX:ShenandoahGCMode=iu", 108 "-XX:ShenandoahGuaranteedGCInterval=0" 109 ); 110 111 testWith("Short interval with iu mode", 112 true, 113 "-Xlog:gc", 114 "-XX:+UnlockDiagnosticVMOptions", 115 "-XX:+UnlockExperimentalVMOptions", 116 "-XX:+UseShenandoahGC", 117 "-XX:ShenandoahGCMode=iu", 118 "-XX:ShenandoahGuaranteedGCInterval=1000" 119 ); 120 121 testWith("Long interval with iu mode", 122 false, 123 "-Xlog:gc", 124 "-XX:+UnlockDiagnosticVMOptions", 125 "-XX:+UnlockExperimentalVMOptions", 126 "-XX:+UseShenandoahGC", 127 "-XX:ShenandoahGCMode=iu", 128 "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long 129 ); 130 131 testWith("Short interval with aggressive", 132 false, 133 "-Xlog:gc", 134 "-XX:+UnlockDiagnosticVMOptions", 135 "-XX:+UnlockExperimentalVMOptions", 136 "-XX:+UseShenandoahGC", 137 "-XX:ShenandoahGCHeuristics=aggressive", 138 "-XX:ShenandoahGuaranteedGCInterval=1000" 139 ); 140 141 testWith("Zero interval with passive", 142 false, 143 "-Xlog:gc", 144 "-XX:+UnlockDiagnosticVMOptions", 145 "-XX:+UnlockExperimentalVMOptions", 146 "-XX:+UseShenandoahGC", 147 "-XX:ShenandoahGCMode=passive", 148 "-XX:ShenandoahGuaranteedGCInterval=0" 149 ); 150 151 testWith("Short interval with passive", 152 false, 153 "-Xlog:gc", 154 "-XX:+UnlockDiagnosticVMOptions", 155 "-XX:+UnlockExperimentalVMOptions", 156 "-XX:+UseShenandoahGC", 157 "-XX:ShenandoahGCMode=passive", 158 "-XX:ShenandoahGuaranteedGCInterval=1000" 159 ); 160 } 161 162 } 163