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annotate test/compiler/testlibrary/rtm/RTMLockingStatistics.java @ 18377:ed0fce2e999a
Fold klass._java_mirror._klass into klass and improve stamps from layout_helper
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Fri, 14 Nov 2014 09:32:59 -0800 |
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1 /* |
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2 * Copyright (c) 2014, 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 package rtm; |
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26 |
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27 import java.util.EnumMap; |
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28 import java.util.LinkedList; |
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29 import java.util.List; |
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30 import java.util.Map; |
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31 import java.util.regex.Pattern; |
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32 import java.util.regex.Matcher; |
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33 |
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34 /** |
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35 * Wrapper for +UsePreciseRTMLockingStatistics output. |
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36 * |
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37 * Example of locking statistics: |
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38 * |
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39 * java/lang/ClassLoader.loadClass@7 |
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40 * # rtm locks total (estimated): 0 |
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41 * # rtm lock aborts : 13 |
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42 * # rtm lock aborts 0: 12 |
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43 * # rtm lock aborts 1: 0 |
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44 * # rtm lock aborts 2: 0 |
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45 * # rtm lock aborts 3: 0 |
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46 * # rtm lock aborts 4: 0 |
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47 * # rtm lock aborts 5: 0 |
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48 */ |
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49 public class RTMLockingStatistics { |
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50 /** |
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51 * Pattern for aborts per abort type entries. |
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52 */ |
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53 private static final Pattern ABORT_PATTERN; |
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54 |
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55 /** |
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56 * Pattern for whole statistics. |
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57 */ |
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58 private static final Pattern RTM_LOCKING_STATISTICS_PATTERN; |
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59 |
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60 static { |
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61 String abortRe |
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62 = "# rtm lock aborts\\s+(?<type>[0-9]+):\\s(?<count>[0-9]+)"; |
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63 |
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64 ABORT_PATTERN = Pattern.compile(abortRe); |
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65 RTM_LOCKING_STATISTICS_PATTERN = Pattern.compile( |
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66 "(?<className>[^.\n]+)\\." + |
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67 "(?<methodName>[^@\n]+)@(?<bci>[0-9]+)\n" + |
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68 "# rtm locks total \\(estimated\\):\\s*" + |
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69 "(?<totalLocks>[0-9]+)\n" + |
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70 "# rtm lock aborts\\s+:\\s*(?<totalAborts>[0-9]+)\n" + |
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71 "(?<abortStats>(" + abortRe + "\n)+)"); |
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72 } |
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73 |
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74 private final long totalLocks; |
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75 private final long totalAborts; |
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76 private final String className; |
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77 private final String methodName; |
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78 private final int bci; |
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79 private final Map<AbortType, Long> aborts = new EnumMap<>(AbortType.class); |
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80 |
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81 /** |
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82 * Constructs RTMLockingStatistics from matcher captured statistics entry. |
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83 * @param matcher Matcher captured statistics entry. |
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84 */ |
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85 private RTMLockingStatistics(Matcher matcher) { |
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86 className = matcher.group("className"); |
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87 methodName = matcher.group("methodName"); |
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88 bci = Integer.valueOf(matcher.group("bci")); |
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89 totalLocks = Long.valueOf(matcher.group("totalLocks")); |
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90 totalAborts = Long.valueOf(matcher.group("totalAborts")); |
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91 |
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92 Matcher abortMatcher = ABORT_PATTERN.matcher(matcher. |
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93 group("abortStats")); |
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94 |
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95 while (abortMatcher.find()) { |
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96 int type = Integer.valueOf(abortMatcher.group("type")); |
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97 long count = Long.valueOf(abortMatcher.group("count")); |
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98 setAborts(AbortType.lookup(type), count); |
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99 } |
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100 } |
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101 |
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102 |
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103 /** |
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104 * Parses string and return all founded RTM locking statistics entries. |
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105 * |
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106 * @param str the string to be parsed. |
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107 * @return list with all founded RTM locking statistics entries or |
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108 * empty list if nothing was found. |
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109 */ |
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110 public static List<RTMLockingStatistics> fromString(String str) { |
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111 List<RTMLockingStatistics> statistics = new LinkedList<>(); |
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112 Matcher matcher = RTM_LOCKING_STATISTICS_PATTERN.matcher(str); |
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113 |
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114 while (matcher.find()) { |
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115 RTMLockingStatistics lock = new RTMLockingStatistics(matcher); |
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116 statistics.add(lock); |
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117 } |
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118 |
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119 return statistics; |
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120 } |
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121 |
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122 /** |
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123 * Parses string and return all founded RTM locking statistics entries |
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124 * for locks in method {@code methodName}. |
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125 * |
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126 * @param methodName a name of the method for locks from which statistics |
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127 * should be gathered. |
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128 * @param str the string to be parsed. |
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129 * @return list with all founded RTM locking statistics entries or |
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130 * empty list if nothing was found. |
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131 */ |
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132 public static List<RTMLockingStatistics> fromString(String methodName, |
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133 String str) { |
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134 String formattedMethodName = formatMethodName(methodName); |
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135 |
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136 List<RTMLockingStatistics> statisticsForMethod = new LinkedList<>(); |
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137 for (RTMLockingStatistics statistics : fromString(str)) { |
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138 if (statistics.getLockName().startsWith(formattedMethodName)) { |
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139 statisticsForMethod.add(statistics); |
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140 } |
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141 } |
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142 return statisticsForMethod; |
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143 } |
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144 |
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145 /** |
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146 * Formats method's name so it will have the same format as |
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147 * in rtm locking statistics. |
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148 * |
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149 * <pre> |
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150 * Example: |
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151 * com/example/Klass::method => com/example/Klass.method |
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152 * com/example/Klass.method => com/example/Klass.method |
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153 * com.example.Klass::method => com/example/Klass.method |
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154 * com.example.Klass.method => com/example/Klass.method |
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155 * </pre> |
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156 * |
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157 * @param methodName method's name that should be formatted. |
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158 * @return formatted method's name. |
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159 */ |
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160 private static String formatMethodName(String methodName) { |
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161 String m[]; |
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162 if (methodName.contains("::")) { |
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163 m = methodName.split("::"); |
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164 } else { |
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165 int splitAt = methodName.lastIndexOf('.'); |
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166 m = new String[2]; |
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167 m[0] = methodName.substring(0, splitAt); |
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168 m[1] = methodName.substring(splitAt + 1); |
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169 } |
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170 return String.format("%s.%s", m[0].replaceAll("\\.", "/"), m[1]); |
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171 } |
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172 |
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173 /** |
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174 * Returns name of lock for which this statistics was collected. |
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175 * Lock name has following format: |
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176 * <class name>.<method name>@<bci> |
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177 * |
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178 * @return name of lock. |
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179 */ |
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180 public String getLockName() { |
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181 return String.format("%s.%s@%d", className, methodName, bci); |
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182 } |
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183 |
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184 /** |
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185 * Returns aborts count for specified abort type. |
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186 * |
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187 * @param type an abort type. |
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188 * @return count of aborts. |
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189 */ |
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190 public long getAborts(AbortType type) { |
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191 return aborts.getOrDefault(type, 0L); |
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192 } |
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193 |
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194 /** |
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195 * Sets aborts count for specified abort type. |
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196 * |
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197 * @param type an abort type. |
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198 * @param count count of aborts. |
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199 */ |
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200 public void setAborts(AbortType type, long count) { |
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201 aborts.put(type, count); |
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202 } |
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203 |
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204 public long getTotalLocks() { |
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205 return totalLocks; |
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206 } |
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207 |
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208 public long getTotalAborts() { |
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209 return totalAborts; |
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210 } |
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211 |
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212 @Override |
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213 public String toString() { |
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214 StringBuilder builder = new StringBuilder(); |
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215 builder.append(getLockName()).append('\n'); |
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216 builder.append(String.format("# rtm locks total (estimated): %d\n", |
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217 getTotalLocks())); |
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218 builder.append(String.format("# rtm lock aborts: %d\n", |
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219 getTotalLocks())); |
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220 |
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221 for (AbortType type : AbortType.values()) { |
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222 builder.append(String.format("# rtm lock aborts %s %d\n", |
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223 type.toString(), getAborts(type))); |
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224 } |
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225 return builder.toString(); |
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226 } |
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227 } |