1 /* 2 * Copyright (c) 2014, 2017, 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 26 * @bug 8015774 27 * @summary Verify SegmentedCodeCache option's processing 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc 30 * java.compiler 31 * java.management 32 * jdk.internal.jvmstat/sun.jvmstat.monitor 33 * 34 * @run driver compiler.codecache.cli.TestSegmentedCodeCacheOption 35 */ 36 37 package compiler.codecache.cli; 38 39 import compiler.codecache.cli.common.CodeCacheOptions; 40 import jdk.test.lib.process.ExitCode; 41 import jdk.test.lib.Platform; 42 import jdk.test.lib.cli.CommandLineOptionTest; 43 import sun.hotspot.code.BlobType; 44 45 public class TestSegmentedCodeCacheOption { 46 private static final String INT_MODE = "-Xint"; 47 private static final String TIERED_COMPILATION = "TieredCompilation"; 48 private static final String SEGMENTED_CODE_CACHE = "SegmentedCodeCache"; 49 private static final String USE_SEGMENTED_CODE_CACHE 50 = CommandLineOptionTest.prepareBooleanFlag(SEGMENTED_CODE_CACHE, 51 true); 52 private static final long THRESHOLD_CC_SIZE_VALUE 53 = CodeCacheOptions.mB(240); 54 private static final long BELOW_THRESHOLD_CC_SIZE 55 = THRESHOLD_CC_SIZE_VALUE - CodeCacheOptions.mB(1); 56 private static final String[] UNEXPECTED_MESSAGES = new String[] { 57 ".*" + SEGMENTED_CODE_CACHE + ".*" 58 }; 59 60 61 private static enum TestCase { 62 JVM_STARTUP { 63 @Override run()64 public void run() throws Throwable { 65 // There should be no errors when we're trying to enable SCC ... 66 String testCaseWarningMessage = "JVM output should not contain " 67 + "any warnings related to " + SEGMENTED_CODE_CACHE; 68 String testCaseExitCodeMessage = "JVM should start without any " 69 + "issues with " + USE_SEGMENTED_CODE_CACHE; 70 71 CommandLineOptionTest.verifySameJVMStartup( 72 /* expectedMessages */ null, UNEXPECTED_MESSAGES, 73 testCaseExitCodeMessage, testCaseWarningMessage, 74 ExitCode.OK, USE_SEGMENTED_CODE_CACHE); 75 // ... and when we're trying to enable it w/o TieredCompilation 76 testCaseExitCodeMessage = "Disabled tiered compilation should " 77 + "not cause startup failure w/ " 78 + USE_SEGMENTED_CODE_CACHE; 79 80 CommandLineOptionTest.verifySameJVMStartup( 81 /* expectedMessages */ null, UNEXPECTED_MESSAGES, 82 testCaseExitCodeMessage, testCaseWarningMessage, 83 ExitCode.OK, USE_SEGMENTED_CODE_CACHE, 84 CommandLineOptionTest.prepareBooleanFlag( 85 TIERED_COMPILATION, false)); 86 // ... and even w/ Xint. 87 testCaseExitCodeMessage = "It should be possible to use " 88 + USE_SEGMENTED_CODE_CACHE + " in interpreted mode " 89 + "without any errors."; 90 91 CommandLineOptionTest.verifyJVMStartup( 92 /* expected messages */ null, UNEXPECTED_MESSAGES, 93 testCaseExitCodeMessage, testCaseWarningMessage, 94 ExitCode.OK, false, INT_MODE, USE_SEGMENTED_CODE_CACHE); 95 } 96 }, 97 OPTION_VALUES_GENERIC { 98 @Override run()99 public void run() throws Throwable { 100 // SCC is disabled w/o TieredCompilation by default 101 String errorMessage = SEGMENTED_CODE_CACHE 102 + " should be disabled by default when tiered " 103 + "compilation is disabled"; 104 105 CommandLineOptionTest.verifyOptionValueForSameVM( 106 SEGMENTED_CODE_CACHE, "false", errorMessage, 107 CommandLineOptionTest.prepareBooleanFlag( 108 TIERED_COMPILATION, false)); 109 // SCC is disabled by default when ReservedCodeCacheSize is too 110 // small 111 errorMessage = String.format("%s should be disabled bu default " 112 + "when %s value is too small.", SEGMENTED_CODE_CACHE, 113 BlobType.All.sizeOptionName); 114 115 CommandLineOptionTest.verifyOptionValueForSameVM( 116 SEGMENTED_CODE_CACHE, "false", errorMessage, 117 CommandLineOptionTest.prepareNumericFlag( 118 BlobType.All.sizeOptionName, 119 BELOW_THRESHOLD_CC_SIZE)); 120 // SCC could be explicitly enabled w/ Xint 121 errorMessage = String.format("It should be possible to " 122 + "explicitly enable %s in interpreted mode.", 123 SEGMENTED_CODE_CACHE); 124 125 CommandLineOptionTest.verifyOptionValue(SEGMENTED_CODE_CACHE, 126 "true", errorMessage, false, INT_MODE, 127 USE_SEGMENTED_CODE_CACHE); 128 // SCC could be explicitly enabled w/o TieredCompilation and w/ 129 // small ReservedCodeCacheSize value 130 errorMessage = String.format("It should be possible to " 131 + "explicitly enable %s with small %s and " 132 + "disabled tiered comp.", SEGMENTED_CODE_CACHE, 133 BlobType.All.sizeOptionName); 134 135 CommandLineOptionTest.verifyOptionValueForSameVM( 136 SEGMENTED_CODE_CACHE, "true", errorMessage, 137 CommandLineOptionTest.prepareBooleanFlag( 138 TIERED_COMPILATION, false), 139 CommandLineOptionTest.prepareNumericFlag( 140 BlobType.All.sizeOptionName, 141 BELOW_THRESHOLD_CC_SIZE), 142 USE_SEGMENTED_CODE_CACHE); 143 } 144 }, 145 OPTION_VALUES_SERVER_SPECIFIC { 146 @Override isApplicable()147 public boolean isApplicable() { 148 return Platform.isServer() && Platform.isTieredSupported(); 149 } 150 151 @Override run()152 public void run() throws Throwable { 153 // SCC is enabled by default when TieredCompilation is on and 154 // ReservedCodeCacheSize is large enough 155 String errorMessage = String.format("Large enough %s and " 156 + "enabled tiered compilation should enable %s " 157 + "by default.", BlobType.All.sizeOptionName, 158 SEGMENTED_CODE_CACHE); 159 160 CommandLineOptionTest.verifyOptionValueForSameVM( 161 SEGMENTED_CODE_CACHE, "true", errorMessage, 162 CommandLineOptionTest.prepareNumericFlag( 163 BlobType.All.sizeOptionName, 164 THRESHOLD_CC_SIZE_VALUE), 165 CommandLineOptionTest.prepareBooleanFlag( 166 TIERED_COMPILATION, true)); 167 } 168 }; 169 TestCase()170 TestCase() { 171 } 172 isApplicable()173 public boolean isApplicable() { 174 return true; 175 } 176 run()177 public abstract void run() throws Throwable; 178 } 179 main(String args[])180 public static void main(String args[]) throws Throwable { 181 for (TestCase testCase : TestCase.values()) { 182 if (testCase.isApplicable()) { 183 System.out.println("Running test case: " + testCase.name()); 184 testCase.run(); 185 } else { 186 System.out.println("Test case skipped: " + testCase.name()); 187 } 188 } 189 } 190 } 191