1 /*
2 * Copyright (c) 2014, 2015, 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 import jdk.test.lib.ExitCode;
24 import jdk.test.lib.Platform;
25 import jdk.test.lib.cli.CommandLineOptionTest;
26 import common.CodeCacheOptions;
27 import sun.hotspot.code.BlobType;
28
29 /**
30 * @test
31 * @bug 8015774
32 * @summary Verify SegmentedCodeCache option's processing
33 * @library /testlibrary /../../test/lib
34 * @modules java.base/sun.misc
35 * java.compiler
36 * java.management
37 * jdk.jvmstat/sun.jvmstat.monitor
38 * @build TestSegmentedCodeCacheOption jdk.test.lib.*
39 * @run main TestSegmentedCodeCacheOption
40 */
41 public class TestSegmentedCodeCacheOption {
42 private static final String INT_MODE = "-Xint";
43 private static final String TIERED_COMPILATION = "TieredCompilation";
44 private static final String SEGMENTED_CODE_CACHE = "SegmentedCodeCache";
45 private static final String USE_SEGMENTED_CODE_CACHE
46 = CommandLineOptionTest.prepareBooleanFlag(SEGMENTED_CODE_CACHE,
47 true);
48 private static final long THRESHOLD_CC_SIZE_VALUE
49 = CodeCacheOptions.mB(240);
50 private static final long BELOW_THRESHOLD_CC_SIZE
51 = THRESHOLD_CC_SIZE_VALUE - CodeCacheOptions.mB(1);
52 private static final String[] UNEXPECTED_MESSAGES = new String[] {
53 ".*" + SEGMENTED_CODE_CACHE + ".*"
54 };
55
56
57 private static enum TestCase {
58 JVM_STARTUP {
59 @Override
60 public void run() throws Throwable {
61 // There should be no errors when we're trying to enable SCC ...
62 String testCaseWarningMessage = "JVM output should not contain "
63 + "any warnings related to " + SEGMENTED_CODE_CACHE;
64 String testCaseExitCodeMessage = "JVM should start without any "
65 + "issues with " + USE_SEGMENTED_CODE_CACHE;
66
67 CommandLineOptionTest.verifySameJVMStartup(
68 /* expectedMessages */ null, UNEXPECTED_MESSAGES,
69 testCaseExitCodeMessage, testCaseWarningMessage,
70 ExitCode.OK, USE_SEGMENTED_CODE_CACHE);
71 // ... and when we're trying to enable it w/o TieredCompilation
72 testCaseExitCodeMessage = "Disabled tiered compilation should "
73 + "not cause startup failure w/ "
74 + USE_SEGMENTED_CODE_CACHE;
75
76 CommandLineOptionTest.verifySameJVMStartup(
77 /* expectedMessages */ null, UNEXPECTED_MESSAGES,
78 testCaseExitCodeMessage, testCaseWarningMessage,
79 ExitCode.OK, USE_SEGMENTED_CODE_CACHE,
80 CommandLineOptionTest.prepareBooleanFlag(
81 TIERED_COMPILATION, false));
82 // ... and even w/ Xint.
83 testCaseExitCodeMessage = "It should be possible to use "
84 + USE_SEGMENTED_CODE_CACHE + " in interpreted mode "
85 + "without any errors.";
86
87 CommandLineOptionTest.verifyJVMStartup(
88 /* expected messages */ null, UNEXPECTED_MESSAGES,
89 testCaseExitCodeMessage, testCaseWarningMessage,
90 ExitCode.OK, false, INT_MODE, USE_SEGMENTED_CODE_CACHE);
91 }
92 },
93 OPTION_VALUES_GENERIC {
94 @Override
95 public void run() throws Throwable {
96 // SCC is disabled w/o TieredCompilation by default
97 String errorMessage = SEGMENTED_CODE_CACHE
98 + " should be disabled by default when tiered "
99 + "compilation is disabled";
100
101 CommandLineOptionTest.verifyOptionValueForSameVM(
102 SEGMENTED_CODE_CACHE, "false", errorMessage,
103 CommandLineOptionTest.prepareBooleanFlag(
104 TIERED_COMPILATION, false));
105 // SCC is disabled by default when ReservedCodeCacheSize is too
106 // small
107 errorMessage = String.format("%s should be disabled bu default "
108 + "when %s value is too small.", SEGMENTED_CODE_CACHE,
109 BlobType.All.sizeOptionName);
110
111 CommandLineOptionTest.verifyOptionValueForSameVM(
112 SEGMENTED_CODE_CACHE, "false", errorMessage,
113 CommandLineOptionTest.prepareNumericFlag(
114 BlobType.All.sizeOptionName,
115 BELOW_THRESHOLD_CC_SIZE));
116 // SCC could be explicitly enabled w/ Xint
117 errorMessage = String.format("It should be possible to "
118 + "explicitly enable %s in interpreted mode.",
119 SEGMENTED_CODE_CACHE);
120
121 CommandLineOptionTest.verifyOptionValue(SEGMENTED_CODE_CACHE,
122 "true", errorMessage, false, INT_MODE,
123 USE_SEGMENTED_CODE_CACHE);
124 // SCC could be explicitly enabled w/o TieredCompilation and w/
125 // small ReservedCodeCacheSize value
126 errorMessage = String.format("It should be possible to "
127 + "explicitly enable %s with small %s and "
128 + "disabled tiered comp.", SEGMENTED_CODE_CACHE,
129 BlobType.All.sizeOptionName);
130
131 CommandLineOptionTest.verifyOptionValueForSameVM(
132 SEGMENTED_CODE_CACHE, "true", errorMessage,
133 CommandLineOptionTest.prepareBooleanFlag(
134 TIERED_COMPILATION, false),
135 CommandLineOptionTest.prepareNumericFlag(
136 BlobType.All.sizeOptionName,
137 BELOW_THRESHOLD_CC_SIZE),
138 USE_SEGMENTED_CODE_CACHE);
139 }
140 },
141 OPTION_VALUES_SERVER_SPECIFIC {
142 @Override
143 public boolean isApplicable() {
144 return Platform.isServer() && Platform.isTieredSupported();
145 }
146
147 @Override
148 public void run() throws Throwable {
149 // SCC is enabled by default when TieredCompilation is on and
150 // ReservedCodeCacheSize is large enough
151 String errorMessage = String.format("Large enough %s and "
152 + "enabled tiered compilation should enable %s "
153 + "by default.", BlobType.All.sizeOptionName,
154 SEGMENTED_CODE_CACHE);
155
156 CommandLineOptionTest.verifyOptionValueForSameVM(
157 SEGMENTED_CODE_CACHE, "true", errorMessage,
158 CommandLineOptionTest.prepareNumericFlag(
159 BlobType.All.sizeOptionName,
160 THRESHOLD_CC_SIZE_VALUE),
161 CommandLineOptionTest.prepareBooleanFlag(
162 TIERED_COMPILATION, true));
163 }
164 };
165
166 TestCase() {
167 }
168
169 public boolean isApplicable() {
170 return true;
171 }
172
173 public abstract void run() throws Throwable;
174 }
175
176 public static void main(String args[]) throws Throwable {
177 for (TestCase testCase : TestCase.values()) {
178 if (testCase.isApplicable()) {
179 System.out.println("Running test case: " + testCase.name());
180 testCase.run();
181 } else {
182 System.out.println("Test case skipped: " + testCase.name());
183 }
184 }
185 }
186 }