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
24 package compiler.codecache.cli.codeheapsize;
25
26 import compiler.codecache.cli.common.CodeCacheCLITestCase;
27 import compiler.codecache.cli.common.CodeCacheOptions;
28 import jdk.test.lib.ExitCode;
29 import jdk.test.lib.Utils;
30 import jdk.test.lib.cli.CommandLineOptionTest;
31 import sun.hotspot.code.BlobType;
32
33 import java.util.Random;
34
35 /**
36 * Test case runner aimed to verify option's consistency.
37 */
38 public class JVMStartupRunner implements CodeCacheCLITestCase.Runner {
39 private static final String INCONSISTENT_CH_SIZES_ERROR
40 = "Invalid code heap sizes.*";
41
42 @Override
43 public void run(CodeCacheCLITestCase.Description testCaseDescription,
44 CodeCacheOptions options) throws Throwable {
45 // Everything should be fine when
46 // sum(all code heap sizes) == reserved CC size
47 CommandLineOptionTest.verifySameJVMStartup(/* expected messages */ null,
48 new String[]{ INCONSISTENT_CH_SIZES_ERROR },
49 "JVM startup should not fail with consistent code heap sizes",
50 "JVM output should not contain warning about inconsistent code "
51 + "heap sizes", ExitCode.OK, options.prepareOptions());
52
53 verifySingleInconsistentValue(options);
54 verifyAllInconsistentValues(options);
55 }
56
57 /**
58 * Verifies that if at least one of three options will have value, such
59 * that sum of all three values will be inconsistent, then JVM startup will
60 * fail.
61 */
62 private static void verifySingleInconsistentValue(CodeCacheOptions options)
63 throws Throwable {
64 verifyHeapSizesSum(options.reserved,
65 scaleCodeHeapSize(options.profiled), options.nonProfiled,
66 options.nonNmethods);
67 verifyHeapSizesSum(options.reserved, options.profiled,
68 scaleCodeHeapSize(options.nonProfiled), options.nonNmethods);
69 verifyHeapSizesSum(options.reserved, options.profiled,
70 options.nonProfiled, scaleCodeHeapSize(options.nonNmethods));
71 }
72
73 /**
74 * Verifies that if all three options will have values such that their sum
75 * is inconsistent with ReservedCodeCacheSize value, then JVM startup will
76 * fail.
77 */
78 private static void verifyAllInconsistentValues(CodeCacheOptions options)
79 throws Throwable {
80 long profiled = options.profiled;
81 long nonProfiled = options.nonProfiled;
82 long nonNMethods = options.nonNmethods;
83
84 while (options.reserved == profiled + nonProfiled + nonNMethods) {
85 profiled = scaleCodeHeapSize(profiled);
86 nonProfiled = scaleCodeHeapSize(nonProfiled);
87 nonNMethods = scaleCodeHeapSize(nonNMethods);
88 }
89
90 verifyHeapSizesSum(options.reserved, profiled, nonProfiled,
91 nonNMethods);
92 }
93
94 private static void verifyHeapSizesSum(long reserved, long profiled,
95 long nonProfiled, long nonNmethods) throws Throwable {
96 // JVM startup expected to fail when
97 // sum(all code heap sizes) != reserved CC size
98 CommandLineOptionTest.verifySameJVMStartup(
99 new String[]{ INCONSISTENT_CH_SIZES_ERROR },
100 /* unexpected messages */ null,
101 "JVM startup should fail with inconsistent code heap size.",
102 "JVM output should contain appropriate error message of code "
103 + "heap sizes are inconsistent",
104 ExitCode.FAIL,
105 CommandLineOptionTest.prepareBooleanFlag(
106 CodeCacheOptions.SEGMENTED_CODE_CACHE, true),
107 CommandLineOptionTest.prepareNumericFlag(
108 BlobType.All.sizeOptionName, reserved),
109 CommandLineOptionTest.prepareNumericFlag(
110 BlobType.MethodProfiled.sizeOptionName, profiled),
111 CommandLineOptionTest.prepareNumericFlag(
112 BlobType.MethodNonProfiled.sizeOptionName, nonProfiled),
113 CommandLineOptionTest.prepareNumericFlag(
114 BlobType.NonNMethod.sizeOptionName, nonNmethods));
115 }
116
117 /**
118 * Returns {@code unscaledSize} value scaled by a random factor from
119 * range (1, 2). If {@code unscaledSize} is not 0, then this
120 * method will return value that won't be equal to {@code unscaledSize}.
121 *
122 * @param unscaledSize The value to be scaled.
123 * @return {@code unscaledSize} value scaled by a factor from range (1, 2).
124 */
125 private static long scaleCodeHeapSize(long unscaledSize) {
126 Random random = Utils.getRandomInstance();
127
128 long scaledSize = unscaledSize;
129 while (scaledSize == unscaledSize && unscaledSize != 0) {
130 float scale = 1.0f + random.nextFloat();
131 scaledSize = (long) Math.ceil(scale * unscaledSize);
132 }
133 return scaledSize;
134 }
135 }