1 /* 2 * Copyright (c) 2013, 2019, 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 package gc.arguments; 25 26 /* 27 * @test TestMaxNewSizeSerial 28 * @key gc 29 * @bug 7057939 30 * @summary Make sure that MaxNewSize always has a useful value after argument 31 * processing. 32 * @requires vm.gc.Serial 33 * @library /test/lib 34 * @library / 35 * @modules java.base/jdk.internal.misc 36 * java.management 37 * @run main gc.arguments.TestMaxNewSize -XX:+UseSerialGC 38 * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com 39 */ 40 41 /* 42 * @test TestMaxNewSizeParallel 43 * @key gc 44 * @bug 7057939 45 * @summary Make sure that MaxNewSize always has a useful value after argument 46 * processing. 47 * @requires vm.gc.Parallel 48 * @library /test/lib 49 * @library / 50 * @modules java.base/jdk.internal.misc 51 * java.management 52 * @run main gc.arguments.TestMaxNewSize -XX:+UseParallelGC 53 * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com 54 */ 55 56 /* 57 * @test TestMaxNewSizeG1 58 * @key gc 59 * @bug 7057939 60 * @summary Make sure that MaxNewSize always has a useful value after argument 61 * processing. 62 * @requires vm.gc.G1 63 * @library /test/lib 64 * @library / 65 * @modules java.base/jdk.internal.misc 66 * java.management 67 * @run main gc.arguments.TestMaxNewSize -XX:+UseG1GC 68 * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com 69 */ 70 71 import java.util.regex.Matcher; 72 import java.util.regex.Pattern; 73 74 import java.math.BigInteger; 75 76 import java.util.ArrayList; 77 import java.util.Arrays; 78 79 import jdk.test.lib.process.OutputAnalyzer; 80 import jdk.test.lib.process.ProcessTools; 81 82 public class TestMaxNewSize { 83 checkMaxNewSize(String[] flags, int heapsize)84 private static void checkMaxNewSize(String[] flags, int heapsize) throws Exception { 85 BigInteger actual = new BigInteger(getMaxNewSize(flags)); 86 System.out.println(actual); 87 if (actual.compareTo(new BigInteger((new Long(heapsize)).toString())) == 1) { 88 throw new RuntimeException("MaxNewSize value set to \"" + actual + 89 "\", expected otherwise when running with the following flags: " + Arrays.asList(flags).toString()); 90 } 91 } 92 checkIncompatibleNewSize(String[] flags)93 private static void checkIncompatibleNewSize(String[] flags) throws Exception { 94 ArrayList<String> finalargs = new ArrayList<String>(); 95 finalargs.addAll(Arrays.asList(flags)); 96 finalargs.add("-version"); 97 98 ProcessBuilder pb = GCArguments.createJavaProcessBuilder(finalargs.toArray(new String[0])); 99 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 100 output.shouldContain("Initial young gen size set larger than the maximum young gen size"); 101 } 102 isRunningG1(String[] args)103 private static boolean isRunningG1(String[] args) { 104 for (int i = 0; i < args.length; i++) { 105 if (args[i].contains("+UseG1GC")) { 106 return true; 107 } 108 } 109 return false; 110 } 111 getMaxNewSize(String[] flags)112 private static String getMaxNewSize(String[] flags) throws Exception { 113 ArrayList<String> finalargs = new ArrayList<String>(); 114 finalargs.addAll(Arrays.asList(flags)); 115 if (isRunningG1(flags)) { 116 finalargs.add("-XX:G1HeapRegionSize=1M"); 117 } 118 finalargs.add("-XX:+PrintFlagsFinal"); 119 finalargs.add("-version"); 120 121 ProcessBuilder pb = GCArguments.createJavaProcessBuilder(finalargs.toArray(new String[0])); 122 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 123 output.shouldHaveExitValue(0); 124 String stdout = output.getStdout(); 125 //System.out.println(stdout); 126 return getFlagValue("MaxNewSize", stdout); 127 } 128 getFlagValue(String flag, String where)129 private static String getFlagValue(String flag, String where) { 130 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); 131 if (!m.find()) { 132 throw new RuntimeException("Could not find value for flag " + flag + " in output string"); 133 } 134 String match = m.group(); 135 return match.substring(match.lastIndexOf(" ") + 1, match.length()); 136 } 137 main(String args[])138 public static void main(String args[]) throws Exception { 139 String gcName = args[0]; 140 final int M = 1024 * 1024; 141 checkMaxNewSize(new String[] { gcName, "-Xmx128M" }, 128 * M); 142 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=5" }, 128 * M); 143 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M" }, 128 * M); 144 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:OldSize=96M" }, 128 * M); 145 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:MaxNewSize=32M" }, 32 * M); 146 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M", "-XX:MaxNewSize=32M" }, 32 * M); 147 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=6", "-XX:MaxNewSize=32M" }, 32 * M); 148 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-Xms96M" }, 128 * M); 149 checkMaxNewSize(new String[] { gcName, "-Xmx96M", "-Xms96M" }, 96 * M); 150 checkMaxNewSize(new String[] { gcName, "-XX:NewSize=128M", "-XX:MaxNewSize=50M"}, 128 * M); 151 } 152 } 153