1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. 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 * @test TestGCLogMessages 26 * @bug 8035406 8027295 8035398 8019342 8027959 27 * @summary Ensure that the PrintGCDetails output for a minor GC with G1 28 * includes the expected necessary messages. 29 * @key gc 30 * @library /testlibrary 31 */ 32 33 import com.oracle.java.testlibrary.ProcessTools; 34 import com.oracle.java.testlibrary.OutputAnalyzer; 35 36 public class TestGCLogMessages { 37 public static void main(String[] args) throws Exception { 38 testNormalLogs(); 39 testWithToSpaceExhaustionLogs(); 40 } 41 42 private static void testNormalLogs() throws Exception { 43 44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC", 45 "-Xmx10M", 46 GCTest.class.getName()); 47 48 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 49 50 output.shouldNotContain("[Redirty Cards"); 51 output.shouldNotContain("[Parallel Redirty"); 52 output.shouldNotContain("[Redirtied Cards"); 53 output.shouldNotContain("[Code Root Purge"); 54 output.shouldNotContain("[String Dedup Fixup"); 55 output.shouldNotContain("[Young Free CSet"); 56 output.shouldNotContain("[Non-Young Free CSet"); 57 output.shouldNotContain("[Humongous Reclaim"); 58 output.shouldHaveExitValue(0); 59 60 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC", 61 "-XX:+UseStringDeduplication", 62 "-Xmx10M", 63 "-XX:+PrintGCDetails", 64 GCTest.class.getName()); 65 66 output = new OutputAnalyzer(pb.start()); 67 68 output.shouldContain("[Redirty Cards"); 69 output.shouldNotContain("[Parallel Redirty"); 70 output.shouldNotContain("[Redirtied Cards"); 71 output.shouldContain("[Code Root Purge"); 72 output.shouldContain("[String Dedup Fixup"); 73 output.shouldNotContain("[Young Free CSet"); 74 output.shouldNotContain("[Non-Young Free CSet"); 75 output.shouldContain("[Humongous Reclaim"); 76 output.shouldNotContain("[Humongous Total"); 77 output.shouldNotContain("[Humongous Candidate"); 78 output.shouldNotContain("[Humongous Reclaimed"); 79 output.shouldHaveExitValue(0); 80 81 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC", 82 "-XX:+UseStringDeduplication", 83 "-Xmx10M", 84 "-XX:+PrintGCDetails", 85 "-XX:+UnlockExperimentalVMOptions", 86 "-XX:G1LogLevel=finest", 87 GCTest.class.getName()); 88 89 output = new OutputAnalyzer(pb.start()); 90 91 output.shouldContain("[Redirty Cards"); 92 output.shouldContain("[Parallel Redirty"); 93 output.shouldContain("[Redirtied Cards"); 94 output.shouldContain("[Code Root Purge"); 95 output.shouldContain("[String Dedup Fixup"); 96 output.shouldContain("[Young Free CSet"); 97 output.shouldContain("[Non-Young Free CSet"); 98 output.shouldContain("[Humongous Reclaim"); 99 output.shouldContain("[Humongous Total"); 100 output.shouldContain("[Humongous Candidate"); 101 output.shouldContain("[Humongous Reclaimed"); 102 output.shouldHaveExitValue(0); 103 } 104 105 private static void testWithToSpaceExhaustionLogs() throws Exception { 106 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC", 107 "-Xmx32M", 108 "-Xmn16M", 109 "-XX:+PrintGCDetails", 110 GCTestWithToSpaceExhaustion.class.getName()); 111 112 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 113 output.shouldContain("[Evacuation Failure"); 114 output.shouldNotContain("[Recalculate Used"); 115 output.shouldNotContain("[Remove Self Forwards"); 116 output.shouldNotContain("[Restore RemSet"); 117 output.shouldHaveExitValue(0); 118 119 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC", 120 "-Xmx32M", 121 "-Xmn16M", 122 "-XX:+PrintGCDetails", 123 "-XX:+UnlockExperimentalVMOptions", 124 "-XX:G1LogLevel=finest", 125 GCTestWithToSpaceExhaustion.class.getName()); 126 127 output = new OutputAnalyzer(pb.start()); 128 output.shouldContain("[Evacuation Failure"); 129 output.shouldContain("[Recalculate Used"); 130 output.shouldContain("[Remove Self Forwards"); 131 output.shouldContain("[Restore RemSet"); 132 output.shouldHaveExitValue(0); 133 } 134 135 static class GCTest { 136 private static byte[] garbage; 137 public static void main(String [] args) { 138 System.out.println("Creating garbage"); 139 // create 128MB of garbage. This should result in at least one GC 140 for (int i = 0; i < 1024; i++) { 141 garbage = new byte[128 * 1024]; 142 } 143 System.out.println("Done"); 144 } 145 } 146 147 static class GCTestWithToSpaceExhaustion { 148 private static byte[] garbage; 149 private static byte[] largeObject; 150 public static void main(String [] args) { 151 largeObject = new byte[16*1024*1024]; 152 System.out.println("Creating garbage"); 153 // create 128MB of garbage. This should result in at least one GC, 154 // some of them with to-space exhaustion. 155 for (int i = 0; i < 1024; i++) { 156 garbage = new byte[128 * 1024]; 157 } 158 System.out.println("Done"); 159 } 160 } 161 }