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;
|
|
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
|