Mercurial > hg > truffle
annotate test/gc/arguments/TestMaxHeapSizeTools.java @ 14323:d2954f85a366
Merge
author | amurillo |
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date | Fri, 07 Feb 2014 09:41:36 -0800 |
parents | 8f07aa079343 |
children | 6827d470020d |
rev | line source |
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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; | |
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67 long maxHeapSize = largeValue + (2 * 1024 * 1024); |
10284 | 68 |
69 // -Xms is not set | |
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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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72 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); |
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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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76 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0" }, values, -1, -1); |
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77 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=" + smallValue }, values, -1, smallValue); |
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78 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); |
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79 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms0", "-XX:InitialHeapSize=0" }, values, -1, -1); |
10284 | 80 |
81 // -Xms is set to small value | |
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82 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue }, values, -1, -1); |
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83 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); |
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84 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=" + largeValue }, values, smallValue, largeValue); |
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85 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + smallValue, "-XX:InitialHeapSize=0" }, values, smallValue, -1); |
10284 | 86 |
87 // -Xms is set to large value | |
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88 checkErgonomics(new String[] { gcflag, "-Xmx" + maxHeapSize, "-Xms" + largeValue }, values, largeValue, largeValue); |
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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 |