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 TestExplicitGC 26 * @summary Test that Shenandoah reacts to explicit GC flags appropriately 27 * @key gc 28 * @library /testlibrary 29 * 30 * @run driver TestExplicitGC 31 */ 32 33 import com.oracle.java.testlibrary.*; 34 35 public class TestExplicitGC { 36 37 enum Mode { 38 PRODUCT, 39 DIAGNOSTIC, 40 EXPERIMENTAL, 41 } 42 43 public static void main(String[] args) throws Exception { 44 if (args.length > 0) { 45 System.out.println("Calling System.gc()"); 46 System.gc(); 47 return; 48 } 49 50 String[] full = new String[] { 51 "Pause Full" 52 }; 53 54 String[] concNormal = new String[] { 55 "Pause Init Mark", 56 "Pause Final Mark", 57 }; 58 59 { 60 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 61 "-Xmx128m", 62 "-XX:+UnlockExperimentalVMOptions", 63 "-XX:+UseShenandoahGC", 64 "-verbose:gc", 65 TestExplicitGC.class.getName(), 66 "test"); 67 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 68 for (String p : full) { 69 output.shouldNotContain(p); 70 } 71 for (String p : concNormal) { 72 output.shouldContain(p); 73 } 74 } 75 76 { 77 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 78 "-Xmx128m", 79 "-XX:+UnlockExperimentalVMOptions", 80 "-XX:+UseShenandoahGC", 81 "-verbose:gc", 82 "-XX:+DisableExplicitGC", 83 TestExplicitGC.class.getName(), 84 "test"); 85 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 86 for (String p : full) { 87 output.shouldNotContain(p); 88 } 89 for (String p : concNormal) { 90 output.shouldNotContain(p); 91 } 92 } 93 94 { 95 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 96 "-Xmx128m", 97 "-XX:+UnlockExperimentalVMOptions", 98 "-XX:+UseShenandoahGC", 99 "-verbose:gc", 100 "-XX:+ExplicitGCInvokesConcurrent", 101 TestExplicitGC.class.getName(), 102 "test"); 103 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 104 for (String p : full) { 105 output.shouldNotContain(p); 106 } 107 for (String p : concNormal) { 108 output.shouldContain(p); 109 } 110 } 111 112 { 113 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 114 "-Xmx128m", 115 "-XX:+UnlockExperimentalVMOptions", 116 "-XX:+UseShenandoahGC", 117 "-verbose:gc", 118 "-XX:-ExplicitGCInvokesConcurrent", 119 TestExplicitGC.class.getName(), 120 "test"); 121 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 122 for (String p : full) { 123 output.shouldContain(p); 124 } 125 for (String p : concNormal) { 126 output.shouldNotContain(p); 127 } 128 } 129 130 { 131 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 132 "-Xmx128m", 133 "-XX:+UnlockExperimentalVMOptions", 134 "-XX:+UseShenandoahGC", 135 "-verbose:gc", 136 "-XX:+ExplicitGCInvokesConcurrent", 137 "-XX:ShenandoahGCMode=iu", 138 TestExplicitGC.class.getName(), 139 "test"); 140 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 141 for (String p : full) { 142 output.shouldNotContain(p); 143 } 144 for (String p : concNormal) { 145 output.shouldContain(p); 146 } 147 } 148 } 149 }