Mercurial > hg > truffle
annotate test/gc/arguments/TestMaxHeapSizeTools.java @ 13060:8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector
Summary: Major cleanup of the collectorpolicy classes
Reviewed-by: tschatzl, jcoomes
| author | jwilhelm |
|---|---|
| date | Fri, 01 Nov 2013 17:09:38 +0100 |
| parents | 7a95933197d0 |
| children | 6827d470020d |
| rev | line source |
|---|---|
| 10284 | 1 /* |
| 2 * Copyright (c) 2013, 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 import java.util.regex.Matcher; | |
| 25 import java.util.regex.Pattern; | |
| 26 import java.util.ArrayList; | |
| 27 import java.util.Arrays; | |
| 28 | |
| 29 import com.oracle.java.testlibrary.*; | |
| 30 import sun.hotspot.WhiteBox; | |
| 31 | |
| 32 class ErgoArgsPrinter { | |
| 33 public static void main(String[] args) throws Exception { | |
| 34 WhiteBox wb = WhiteBox.getWhiteBox(); | |
| 35 wb.printHeapSizes(); | |
| 36 } | |
| 37 } | |
| 38 | |
| 39 final class MinInitialMaxValues { | |
| 40 public long minHeapSize; | |
| 41 public long initialHeapSize; | |
| 42 public long maxHeapSize; | |
| 43 | |
| 44 public long minAlignment; | |
| 45 public long maxAlignment; | |
| 46 } | |
| 47 | |
| 48 class TestMaxHeapSizeTools { | |
| 49 | |
| 50 public static void checkMinInitialMaxHeapFlags(String gcflag) throws Exception { | |
| 51 checkInvalidMinInitialHeapCombinations(gcflag); | |
| 52 checkValidMinInitialHeapCombinations(gcflag); | |
| 53 checkInvalidInitialMaxHeapCombinations(gcflag); | |
| 54 checkValidInitialMaxHeapCombinations(gcflag); | |
| 55 } | |
| 56 | |
| 57 public static void checkMinInitialErgonomics(String gcflag) throws Exception { | |
| 58 // heap sizing ergonomics use the value NewSize + OldSize as default values | |
| 59 // for ergonomics calculation. Retrieve these values. | |
| 60 long[] values = new long[2]; | |
| 61 getNewOldSize(gcflag, values); | |
| 62 | |
| 63 // we check cases with values smaller and larger than this default value. | |
| 64 long newPlusOldSize = values[0] + values[1]; | |
| 65 long smallValue = newPlusOldSize / 2; | |
| 66 long largeValue = newPlusOldSize * 2; | |
|
13060
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
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changeset
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67 long maxHeapSize = largeValue + (2 * 1024 * 1024); |
| 10284 | 68 |
| 69 // -Xms is not set | |
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8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
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70 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize }, values, -1, -1); |
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71 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-XX:InitialHeapSize=" + smallValue }, values, -1, smallValue); |
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8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
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72 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); |
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8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
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changeset
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73 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-XX:InitialHeapSize=0" }, values, -1, -1); |
| 10284 | 74 |
| 75 // -Xms is set to zero | |
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13060
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8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
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diff
changeset
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76 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0" }, values, -1, -1); |
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8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
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77 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=" + smallValue }, values, -1, smallValue); |
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8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
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78 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); |
|
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
79 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=0" }, values, -1, -1); |
| 10284 | 80 |
| 81 // -Xms is set to small value | |
|
13060
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
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82 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue }, values, -1, -1); |
|
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
83 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); |
|
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
84 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=" + largeValue }, values, smallValue, largeValue); |
|
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
85 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=0" }, values, smallValue, -1); |
| 10284 | 86 |
| 87 // -Xms is set to large value | |
|
13060
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
88 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + largeValue }, values, largeValue, largeValue); |
|
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
10284
diff
changeset
|
89 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + largeValue, "-XX:InitialHeapSize=0" }, values, largeValue, -1); |
| 10284 | 90 } |
| 91 | |
| 92 private static long align_up(long value, long alignment) { | |
| 93 long alignmentMinusOne = alignment - 1; | |
| 94 return (value + alignmentMinusOne) & ~alignmentMinusOne; | |
| 95 } | |
| 96 | |
| 97 private static void getNewOldSize(String gcflag, long[] values) throws Exception { | |
| 98 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(gcflag, | |
| 99 "-XX:+PrintFlagsFinal", "-version"); | |
| 100 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
| 101 output.shouldHaveExitValue(0); | |
| 102 | |
| 103 String stdout = output.getStdout(); | |
| 104 values[0] = getFlagValue(" NewSize", stdout); | |
| 105 values[1] = getFlagValue(" OldSize", stdout); | |
| 106 } | |
| 107 | |
| 108 public static void checkGenMaxHeapErgo(String gcflag) throws Exception { | |
| 109 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 3); | |
| 110 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 4); | |
| 111 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 5); | |
| 112 } | |
| 113 | |
| 114 private static void checkInvalidMinInitialHeapCombinations(String gcflag) throws Exception { | |
| 115 expectError(new String[] { gcflag, "-Xms8M", "-XX:InitialHeapSize=4M", "-version" }); | |
| 116 } | |
| 117 | |
| 118 private static void checkValidMinInitialHeapCombinations(String gcflag) throws Exception { | |
| 119 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-Xms4M", "-version" }); | |
| 120 expectValid(new String[] { gcflag, "-Xms4M", "-XX:InitialHeapSize=8M", "-version" }); | |
| 121 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-Xms8M", "-version" }); | |
| 122 // the following is not an error as -Xms sets both minimal and initial heap size | |
| 123 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=4M", "-Xms8M", "-version" }); | |
| 124 } | |
| 125 | |
| 126 private static void checkInvalidInitialMaxHeapCombinations(String gcflag) throws Exception { | |
| 127 expectError(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=8M", "-version" }); | |
| 128 expectError(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-XX:MaxHeapSize=4M", "-version" }); | |
| 129 } | |
| 130 | |
| 131 private static void checkValidInitialMaxHeapCombinations(String gcflag) throws Exception { | |
| 132 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=4M", "-XX:MaxHeapSize=8M", "-version" }); | |
| 133 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=8M", "-XX:InitialHeapSize=4M", "-version" }); | |
| 134 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=4M", "-version" }); | |
| 135 // a value of "0" for initial heap size means auto-detect | |
| 136 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=0M", "-version" }); | |
| 137 } | |
| 138 | |
| 139 private static long valueAfter(String source, String match) { | |
| 140 int start = source.indexOf(match) + match.length(); | |
| 141 String tail = source.substring(start).split(" ")[0]; | |
| 142 return Long.parseLong(tail); | |
| 143 } | |
| 144 | |
| 145 /** | |
| 146 * Executes a new VM process with the given class and parameters. | |
| 147 * @param vmargs Arguments to the VM to run | |
| 148 * @param classname Name of the class to run | |
| 149 * @param arguments Arguments to the class | |
| 150 * @param useTestDotJavaDotOpts Use test.java.opts as part of the VM argument string | |
| 151 * @return The OutputAnalyzer with the results for the invocation. | |
| 152 */ | |
| 153 public static OutputAnalyzer runWhiteBoxTest(String[] vmargs, String classname, String[] arguments, boolean useTestDotJavaDotOpts) throws Exception { | |
| 154 ArrayList<String> finalargs = new ArrayList<String>(); | |
| 155 | |
| 156 String[] whiteboxOpts = new String[] { | |
| 157 "-Xbootclasspath/a:.", | |
| 158 "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", | |
| 159 "-cp", System.getProperty("java.class.path"), | |
| 160 }; | |
| 161 | |
| 162 if (useTestDotJavaDotOpts) { | |
| 163 // System.getProperty("test.java.opts") is '' if no options is set, | |
| 164 // we need to skip such a result | |
| 165 String[] externalVMOpts = new String[0]; | |
| 166 if (System.getProperty("test.java.opts") != null && System.getProperty("test.java.opts").length() != 0) { | |
| 167 externalVMOpts = System.getProperty("test.java.opts").split(" "); | |
| 168 } | |
| 169 finalargs.addAll(Arrays.asList(externalVMOpts)); | |
| 170 } | |
| 171 | |
| 172 finalargs.addAll(Arrays.asList(vmargs)); | |
| 173 finalargs.addAll(Arrays.asList(whiteboxOpts)); | |
| 174 finalargs.add(classname); | |
| 175 finalargs.addAll(Arrays.asList(arguments)); | |
| 176 | |
| 177 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); | |
| 178 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
| 179 output.shouldHaveExitValue(0); | |
| 180 | |
| 181 return output; | |
| 182 } | |
| 183 | |
| 184 private static void getMinInitialMaxHeap(String[] args, MinInitialMaxValues val) throws Exception { | |
| 185 OutputAnalyzer output = runWhiteBoxTest(args, ErgoArgsPrinter.class.getName(), new String[] {}, false); | |
| 186 | |
| 187 // the output we watch for has the following format: | |
| 188 // | |
| 189 // "Minimum heap X Initial heap Y Maximum heap Z Min alignment A Max Alignment B" | |
| 190 // | |
| 191 // where A, B, X, Y and Z are sizes in bytes. | |
| 192 // Unfortunately there is no other way to retrieve the minimum heap size and | |
| 193 // the alignments. | |
| 194 | |
| 195 Matcher m = Pattern.compile("Minimum heap \\d+ Initial heap \\d+ Maximum heap \\d+ Min alignment \\d+ Max alignment \\d+"). | |
| 196 matcher(output.getStdout()); | |
| 197 if (!m.find()) { | |
| 198 throw new RuntimeException("Could not find heap size string."); | |
| 199 } | |
| 200 | |
| 201 String match = m.group(); | |
| 202 | |
| 203 // actual values | |
| 204 val.minHeapSize = valueAfter(match, "Minimum heap "); | |
| 205 val.initialHeapSize = valueAfter(match, "Initial heap "); | |
| 206 val.maxHeapSize = valueAfter(match, "Maximum heap "); | |
| 207 val.minAlignment = valueAfter(match, "Min alignment "); | |
| 208 val.maxAlignment = valueAfter(match, "Max alignment "); | |
| 209 } | |
| 210 | |
| 211 /** | |
| 212 * Verify whether the VM automatically synchronizes minimum and initial heap size if only | |
| 213 * one is given for the GC specified. | |
| 214 */ | |
| 215 public static void checkErgonomics(String[] args, long[] newoldsize, | |
| 216 long expectedMin, long expectedInitial) throws Exception { | |
| 217 | |
| 218 MinInitialMaxValues v = new MinInitialMaxValues(); | |
| 219 getMinInitialMaxHeap(args, v); | |
| 220 | |
| 221 if ((expectedMin != -1) && (align_up(expectedMin, v.minAlignment) != v.minHeapSize)) { | |
| 222 throw new RuntimeException("Actual minimum heap size of " + v.minHeapSize + | |
| 223 " differs from expected minimum heap size of " + expectedMin); | |
| 224 } | |
| 225 | |
| 226 if ((expectedInitial != -1) && (align_up(expectedInitial, v.minAlignment) != v.initialHeapSize)) { | |
| 227 throw new RuntimeException("Actual initial heap size of " + v.initialHeapSize + | |
| 228 " differs from expected initial heap size of " + expectedInitial); | |
| 229 } | |
| 230 | |
| 231 // always check the invariant min <= initial <= max heap size | |
| 232 if (!(v.minHeapSize <= v.initialHeapSize && v.initialHeapSize <= v.maxHeapSize)) { | |
| 233 throw new RuntimeException("Inconsistent min/initial/max heap sizes, they are " + | |
| 234 v.minHeapSize + "/" + v.initialHeapSize + "/" + v.maxHeapSize); | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 /** | |
| 239 * Verify whether the VM respects the given maximum heap size in MB for the | |
| 240 * GC specified. | |
| 241 * @param gcflag The garbage collector to test as command line flag. E.g. -XX:+UseG1GC | |
| 242 * @param maxHeapSize the maximum heap size to verify, in MB. | |
| 243 */ | |
| 244 public static void checkGenMaxHeapSize(String gcflag, long maxHeapsize) throws Exception { | |
| 245 final long K = 1024; | |
| 246 | |
| 247 MinInitialMaxValues v = new MinInitialMaxValues(); | |
| 248 getMinInitialMaxHeap(new String[] { gcflag, "-XX:MaxHeapSize=" + maxHeapsize + "M" }, v); | |
| 249 | |
| 250 long expectedHeapSize = align_up(maxHeapsize * K * K, v.maxAlignment); | |
| 251 long actualHeapSize = v.maxHeapSize; | |
| 252 | |
| 253 if (actualHeapSize > expectedHeapSize) { | |
| 254 throw new RuntimeException("Heap has " + actualHeapSize + | |
| 255 " bytes, expected to be less than " + expectedHeapSize); | |
| 256 } | |
| 257 } | |
| 258 | |
| 259 private static long getFlagValue(String flag, String where) { | |
| 260 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); | |
| 261 if (!m.find()) { | |
| 262 throw new RuntimeException("Could not find value for flag " + flag + " in output string"); | |
| 263 } | |
| 264 String match = m.group(); | |
| 265 return Long.parseLong(match.substring(match.lastIndexOf(" ") + 1, match.length())); | |
| 266 } | |
| 267 | |
| 268 private static void shouldContainOrNot(OutputAnalyzer output, boolean contains, String message) throws Exception { | |
| 269 if (contains) { | |
| 270 output.shouldContain(message); | |
| 271 } else { | |
| 272 output.shouldNotContain(message); | |
| 273 } | |
| 274 } | |
| 275 | |
| 276 private static void expect(String[] flags, boolean hasWarning, boolean hasError, int errorcode) throws Exception { | |
| 277 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags); | |
| 278 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
| 279 shouldContainOrNot(output, hasWarning, "Warning"); | |
| 280 shouldContainOrNot(output, hasError, "Error"); | |
| 281 output.shouldHaveExitValue(errorcode); | |
| 282 } | |
| 283 | |
| 284 private static void expectError(String[] flags) throws Exception { | |
| 285 expect(flags, false, true, 1); | |
| 286 } | |
| 287 | |
| 288 private static void expectValid(String[] flags) throws Exception { | |
| 289 expect(flags, false, false, 0); | |
| 290 } | |
| 291 } | |
| 292 |