Mercurial > hg > graal-compiler
comparison test/gc/arguments/TestMaxHeapSizeTools.java @ 10284:7a95933197d0
8014058: Regression tests for 8006088
Summary: The patch for 8006088 misses regression tests after a merge error, this CR provides them.
Reviewed-by: jwilhelm, tamao, jmasa
author | tschatzl |
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date | Mon, 13 May 2013 09:45:33 +0200 |
parents | |
children | 8f07aa079343 |
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10251:6114c49b31b5 | 10284:7a95933197d0 |
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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; | |
67 | |
68 // -Xms is not set | |
69 checkErgonomics(new String[] { gcflag, "-Xmx16M" }, values, -1, -1); | |
70 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); | |
71 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); | |
72 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-XX:InitialHeapSize=0" }, values, -1, -1); | |
73 | |
74 // -Xms is set to zero | |
75 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms0" }, values, -1, -1); | |
76 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms0", "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); | |
77 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms0", "-XX:InitialHeapSize=" + largeValue }, values, -1, largeValue); | |
78 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms0", "-XX:InitialHeapSize=0" }, values, -1, -1); | |
79 | |
80 // -Xms is set to small value | |
81 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + smallValue }, values, -1, -1); | |
82 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + smallValue, "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); | |
83 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + smallValue, "-XX:InitialHeapSize=" + largeValue }, values, smallValue, largeValue); | |
84 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + smallValue, "-XX:InitialHeapSize=0" }, values, smallValue, -1); | |
85 | |
86 // -Xms is set to large value | |
87 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + largeValue }, values, largeValue, largeValue); | |
88 // the next case has already been checked elsewhere and gives an error | |
89 // checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + largeValue, "-XX:InitialHeapSize=" + smallValue }, values, smallValue, smallValue); | |
90 // the next case has already been checked elsewhere too | |
91 // checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + largeValue, "-XX:InitialHeapSize=" + largeValue }, values, values[0], largeValue); | |
92 checkErgonomics(new String[] { gcflag, "-Xmx16M", "-Xms" + largeValue, "-XX:InitialHeapSize=0" }, values, largeValue, -1); | |
93 } | |
94 | |
95 private static long align_up(long value, long alignment) { | |
96 long alignmentMinusOne = alignment - 1; | |
97 return (value + alignmentMinusOne) & ~alignmentMinusOne; | |
98 } | |
99 | |
100 private static void getNewOldSize(String gcflag, long[] values) throws Exception { | |
101 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(gcflag, | |
102 "-XX:+PrintFlagsFinal", "-version"); | |
103 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
104 output.shouldHaveExitValue(0); | |
105 | |
106 String stdout = output.getStdout(); | |
107 values[0] = getFlagValue(" NewSize", stdout); | |
108 values[1] = getFlagValue(" OldSize", stdout); | |
109 } | |
110 | |
111 public static void checkGenMaxHeapErgo(String gcflag) throws Exception { | |
112 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 3); | |
113 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 4); | |
114 TestMaxHeapSizeTools.checkGenMaxHeapSize(gcflag, 5); | |
115 } | |
116 | |
117 private static void checkInvalidMinInitialHeapCombinations(String gcflag) throws Exception { | |
118 expectError(new String[] { gcflag, "-Xms8M", "-XX:InitialHeapSize=4M", "-version" }); | |
119 } | |
120 | |
121 private static void checkValidMinInitialHeapCombinations(String gcflag) throws Exception { | |
122 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-Xms4M", "-version" }); | |
123 expectValid(new String[] { gcflag, "-Xms4M", "-XX:InitialHeapSize=8M", "-version" }); | |
124 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-Xms8M", "-version" }); | |
125 // the following is not an error as -Xms sets both minimal and initial heap size | |
126 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=4M", "-Xms8M", "-version" }); | |
127 } | |
128 | |
129 private static void checkInvalidInitialMaxHeapCombinations(String gcflag) throws Exception { | |
130 expectError(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=8M", "-version" }); | |
131 expectError(new String[] { gcflag, "-XX:InitialHeapSize=8M", "-XX:MaxHeapSize=4M", "-version" }); | |
132 } | |
133 | |
134 private static void checkValidInitialMaxHeapCombinations(String gcflag) throws Exception { | |
135 expectValid(new String[] { gcflag, "-XX:InitialHeapSize=4M", "-XX:MaxHeapSize=8M", "-version" }); | |
136 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=8M", "-XX:InitialHeapSize=4M", "-version" }); | |
137 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=4M", "-version" }); | |
138 // a value of "0" for initial heap size means auto-detect | |
139 expectValid(new String[] { gcflag, "-XX:MaxHeapSize=4M", "-XX:InitialHeapSize=0M", "-version" }); | |
140 } | |
141 | |
142 private static long valueAfter(String source, String match) { | |
143 int start = source.indexOf(match) + match.length(); | |
144 String tail = source.substring(start).split(" ")[0]; | |
145 return Long.parseLong(tail); | |
146 } | |
147 | |
148 /** | |
149 * Executes a new VM process with the given class and parameters. | |
150 * @param vmargs Arguments to the VM to run | |
151 * @param classname Name of the class to run | |
152 * @param arguments Arguments to the class | |
153 * @param useTestDotJavaDotOpts Use test.java.opts as part of the VM argument string | |
154 * @return The OutputAnalyzer with the results for the invocation. | |
155 */ | |
156 public static OutputAnalyzer runWhiteBoxTest(String[] vmargs, String classname, String[] arguments, boolean useTestDotJavaDotOpts) throws Exception { | |
157 ArrayList<String> finalargs = new ArrayList<String>(); | |
158 | |
159 String[] whiteboxOpts = new String[] { | |
160 "-Xbootclasspath/a:.", | |
161 "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", | |
162 "-cp", System.getProperty("java.class.path"), | |
163 }; | |
164 | |
165 if (useTestDotJavaDotOpts) { | |
166 // System.getProperty("test.java.opts") is '' if no options is set, | |
167 // we need to skip such a result | |
168 String[] externalVMOpts = new String[0]; | |
169 if (System.getProperty("test.java.opts") != null && System.getProperty("test.java.opts").length() != 0) { | |
170 externalVMOpts = System.getProperty("test.java.opts").split(" "); | |
171 } | |
172 finalargs.addAll(Arrays.asList(externalVMOpts)); | |
173 } | |
174 | |
175 finalargs.addAll(Arrays.asList(vmargs)); | |
176 finalargs.addAll(Arrays.asList(whiteboxOpts)); | |
177 finalargs.add(classname); | |
178 finalargs.addAll(Arrays.asList(arguments)); | |
179 | |
180 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); | |
181 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
182 output.shouldHaveExitValue(0); | |
183 | |
184 return output; | |
185 } | |
186 | |
187 private static void getMinInitialMaxHeap(String[] args, MinInitialMaxValues val) throws Exception { | |
188 OutputAnalyzer output = runWhiteBoxTest(args, ErgoArgsPrinter.class.getName(), new String[] {}, false); | |
189 | |
190 // the output we watch for has the following format: | |
191 // | |
192 // "Minimum heap X Initial heap Y Maximum heap Z Min alignment A Max Alignment B" | |
193 // | |
194 // where A, B, X, Y and Z are sizes in bytes. | |
195 // Unfortunately there is no other way to retrieve the minimum heap size and | |
196 // the alignments. | |
197 | |
198 Matcher m = Pattern.compile("Minimum heap \\d+ Initial heap \\d+ Maximum heap \\d+ Min alignment \\d+ Max alignment \\d+"). | |
199 matcher(output.getStdout()); | |
200 if (!m.find()) { | |
201 throw new RuntimeException("Could not find heap size string."); | |
202 } | |
203 | |
204 String match = m.group(); | |
205 | |
206 // actual values | |
207 val.minHeapSize = valueAfter(match, "Minimum heap "); | |
208 val.initialHeapSize = valueAfter(match, "Initial heap "); | |
209 val.maxHeapSize = valueAfter(match, "Maximum heap "); | |
210 val.minAlignment = valueAfter(match, "Min alignment "); | |
211 val.maxAlignment = valueAfter(match, "Max alignment "); | |
212 } | |
213 | |
214 /** | |
215 * Verify whether the VM automatically synchronizes minimum and initial heap size if only | |
216 * one is given for the GC specified. | |
217 */ | |
218 public static void checkErgonomics(String[] args, long[] newoldsize, | |
219 long expectedMin, long expectedInitial) throws Exception { | |
220 | |
221 MinInitialMaxValues v = new MinInitialMaxValues(); | |
222 getMinInitialMaxHeap(args, v); | |
223 | |
224 if ((expectedMin != -1) && (align_up(expectedMin, v.minAlignment) != v.minHeapSize)) { | |
225 throw new RuntimeException("Actual minimum heap size of " + v.minHeapSize + | |
226 " differs from expected minimum heap size of " + expectedMin); | |
227 } | |
228 | |
229 if ((expectedInitial != -1) && (align_up(expectedInitial, v.minAlignment) != v.initialHeapSize)) { | |
230 throw new RuntimeException("Actual initial heap size of " + v.initialHeapSize + | |
231 " differs from expected initial heap size of " + expectedInitial); | |
232 } | |
233 | |
234 // always check the invariant min <= initial <= max heap size | |
235 if (!(v.minHeapSize <= v.initialHeapSize && v.initialHeapSize <= v.maxHeapSize)) { | |
236 throw new RuntimeException("Inconsistent min/initial/max heap sizes, they are " + | |
237 v.minHeapSize + "/" + v.initialHeapSize + "/" + v.maxHeapSize); | |
238 } | |
239 } | |
240 | |
241 /** | |
242 * Verify whether the VM respects the given maximum heap size in MB for the | |
243 * GC specified. | |
244 * @param gcflag The garbage collector to test as command line flag. E.g. -XX:+UseG1GC | |
245 * @param maxHeapSize the maximum heap size to verify, in MB. | |
246 */ | |
247 public static void checkGenMaxHeapSize(String gcflag, long maxHeapsize) throws Exception { | |
248 final long K = 1024; | |
249 | |
250 MinInitialMaxValues v = new MinInitialMaxValues(); | |
251 getMinInitialMaxHeap(new String[] { gcflag, "-XX:MaxHeapSize=" + maxHeapsize + "M" }, v); | |
252 | |
253 long expectedHeapSize = align_up(maxHeapsize * K * K, v.maxAlignment); | |
254 long actualHeapSize = v.maxHeapSize; | |
255 | |
256 if (actualHeapSize > expectedHeapSize) { | |
257 throw new RuntimeException("Heap has " + actualHeapSize + | |
258 " bytes, expected to be less than " + expectedHeapSize); | |
259 } | |
260 } | |
261 | |
262 private static long getFlagValue(String flag, String where) { | |
263 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); | |
264 if (!m.find()) { | |
265 throw new RuntimeException("Could not find value for flag " + flag + " in output string"); | |
266 } | |
267 String match = m.group(); | |
268 return Long.parseLong(match.substring(match.lastIndexOf(" ") + 1, match.length())); | |
269 } | |
270 | |
271 private static void shouldContainOrNot(OutputAnalyzer output, boolean contains, String message) throws Exception { | |
272 if (contains) { | |
273 output.shouldContain(message); | |
274 } else { | |
275 output.shouldNotContain(message); | |
276 } | |
277 } | |
278 | |
279 private static void expect(String[] flags, boolean hasWarning, boolean hasError, int errorcode) throws Exception { | |
280 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags); | |
281 OutputAnalyzer output = new OutputAnalyzer(pb.start()); | |
282 shouldContainOrNot(output, hasWarning, "Warning"); | |
283 shouldContainOrNot(output, hasError, "Error"); | |
284 output.shouldHaveExitValue(errorcode); | |
285 } | |
286 | |
287 private static void expectError(String[] flags) throws Exception { | |
288 expect(flags, false, true, 1); | |
289 } | |
290 | |
291 private static void expectValid(String[] flags) throws Exception { | |
292 expect(flags, false, false, 0); | |
293 } | |
294 } | |
295 |