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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 8024927 |
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27 * @summary Testing address of compressed class pointer space as best as possible. |
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28 * @library /testlibrary |
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29 */ |
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30 |
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31 import com.oracle.java.testlibrary.*; |
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32 |
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33 public class CompressedClassPointers { |
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34 |
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35 public static void smallHeapTest() throws Exception { |
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36 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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37 "-XX:+UnlockDiagnosticVMOptions", |
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38 "-XX:SharedBaseAddress=8g", |
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39 "-Xmx128m", |
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40 "-XX:+PrintCompressedOopsMode", |
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41 "-XX:+VerifyBeforeGC", "-version"); |
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42 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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43 output.shouldContain("Narrow klass base: 0x0000000000000000"); |
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44 output.shouldHaveExitValue(0); |
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45 } |
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46 |
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47 public static void smallHeapTestWith3G() throws Exception { |
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48 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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49 "-XX:+UnlockDiagnosticVMOptions", |
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50 "-XX:CompressedClassSpaceSize=3g", |
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51 "-Xmx128m", |
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52 "-XX:+PrintCompressedOopsMode", |
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53 "-XX:+VerifyBeforeGC", "-version"); |
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54 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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55 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3"); |
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56 output.shouldHaveExitValue(0); |
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57 } |
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58 |
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59 public static void largeHeapTest() throws Exception { |
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60 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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61 "-XX:+UnlockDiagnosticVMOptions", |
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62 "-Xmx30g", |
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63 "-XX:+PrintCompressedOopsMode", |
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64 "-XX:+VerifyBeforeGC", "-version"); |
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65 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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66 output.shouldNotContain("Narrow klass base: 0x0000000000000000"); |
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67 output.shouldContain("Narrow klass shift: 0"); |
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68 output.shouldHaveExitValue(0); |
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69 } |
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70 |
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71 public static void largePagesTest() throws Exception { |
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72 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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73 "-XX:+UnlockDiagnosticVMOptions", |
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74 "-Xmx128m", |
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75 "-XX:+UseLargePages", |
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76 "-XX:+PrintCompressedOopsMode", |
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77 "-XX:+VerifyBeforeGC", "-version"); |
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78 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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79 output.shouldContain("Narrow klass base:"); |
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80 output.shouldHaveExitValue(0); |
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81 } |
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82 |
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83 public static void sharingTest() throws Exception { |
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84 // Test small heaps |
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85 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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86 "-XX:+UnlockDiagnosticVMOptions", |
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87 "-XX:SharedArchiveFile=./sample.jsa", |
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88 "-Xmx128m", |
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89 "-XX:SharedBaseAddress=8g", |
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90 "-XX:+PrintCompressedOopsMode", |
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91 "-XX:+VerifyBeforeGC", |
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92 "-Xshare:dump"); |
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93 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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94 try { |
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95 output.shouldContain("Loading classes to share"); |
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96 output.shouldHaveExitValue(0); |
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97 |
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98 pb = ProcessTools.createJavaProcessBuilder( |
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99 "-XX:+UnlockDiagnosticVMOptions", |
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100 "-XX:SharedArchiveFile=./sample.jsa", |
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101 "-Xmx128m", |
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102 "-XX:SharedBaseAddress=8g", |
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103 "-XX:+PrintCompressedOopsMode", |
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104 "-Xshare:on", |
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105 "-version"); |
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106 output = new OutputAnalyzer(pb.start()); |
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107 output.shouldContain("sharing"); |
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108 output.shouldHaveExitValue(0); |
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109 |
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110 } catch (RuntimeException e) { |
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111 output.shouldContain("Unable to use shared archive"); |
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112 output.shouldHaveExitValue(1); |
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113 } |
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114 } |
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115 |
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116 public static void main(String[] args) throws Exception { |
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117 if (!Platform.is64bit()) { |
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118 // Can't test this on 32 bit, just pass |
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119 System.out.println("Skipping test on 32bit"); |
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120 return; |
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121 } |
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122 // Solaris 10 can't mmap compressed oops space without a base |
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123 if (Platform.isSolaris()) { |
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124 String name = System.getProperty("os.version"); |
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125 if (name.equals("5.10")) { |
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126 System.out.println("Skipping test on Solaris 10"); |
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127 return; |
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128 } |
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129 } |
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130 smallHeapTest(); |
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131 smallHeapTestWith3G(); |
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132 largeHeapTest(); |
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133 largePagesTest(); |
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134 sharingTest(); |
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135 } |
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136 } |