Mercurial > hg > truffle
annotate graal/com.oracle.max.base/src/com/sun/max/profile/GlobalMetrics.java @ 4231:d713eaf4d288
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author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Thu, 05 Jan 2012 16:09:47 -0800 |
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1 /* |
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2 * Copyright (c) 2007, 2011, 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 package com.sun.max.profile; |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 import java.util.Arrays; |
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28 |
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29 import com.sun.max.*; |
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30 import com.sun.max.profile.Metrics.*; |
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31 import com.sun.max.util.timer.*; |
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32 |
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33 public class GlobalMetrics { |
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34 |
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35 static class EntryComparator implements Comparator<Map.Entry<String, Metric>> { |
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36 public int compare(Map.Entry<String, Metric> a, Map.Entry<String, Metric> b) { |
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37 return String.CASE_INSENSITIVE_ORDER.compare(a.getKey(), b.getKey()); |
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38 } |
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39 } |
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40 |
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41 static class MetricSet<T extends Metric> { |
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42 protected final Class<T> clazz; |
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43 private final Map<String, T> metrics = new HashMap<>(); |
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44 |
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45 MetricSet(Class<T> mClass) { |
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46 clazz = mClass; |
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47 } |
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48 } |
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49 |
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50 protected static final Map<Class<? extends Metric>, MetricSet> metricSets = new HashMap<>(); |
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51 |
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52 /** |
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53 * This method allocates a new counter with the specified name and adds it to the global |
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54 * metric list. If a previous metric with the same name exists, it will return a reference |
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55 * to the first one created. |
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56 * @param name the name of the metric for which to create a counter |
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57 * @return a reference to a code {@code Counter} object which can be incremented and accumulated |
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58 */ |
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59 public static Metrics.Counter newCounter(String name) { |
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60 if (name == null) { |
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61 return new Metrics.Counter(); |
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62 } |
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63 return getCounter(name); |
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64 } |
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65 |
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66 public static TimerMetric newTimer(String name, Clock clock) { |
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67 if (name == null) { |
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68 return new TimerMetric(new MultiThreadTimer(clock)); |
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69 } |
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70 return getTimer(name, clock); |
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71 } |
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72 |
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73 public static Metrics.Rate newRate(String name, Metrics.Counter count, Clock clock) { |
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74 if (name == null) { |
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75 return new Rate(count, clock); |
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76 } |
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77 return getRate(name, count, clock); |
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78 } |
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79 |
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80 static synchronized Metrics.Counter getCounter(String name) { |
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81 Metrics.Counter counter = getMetric(name, Metrics.Counter.class); |
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82 if (counter == null) { |
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83 counter = setMetric(name, Metrics.Counter.class, new Metrics.Counter()); |
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84 } |
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85 return counter; |
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86 } |
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87 |
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88 static synchronized TimerMetric getTimer(String name, Clock clock) { |
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89 TimerMetric timer = getMetric(name, TimerMetric.class); |
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90 if (timer == null) { |
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91 timer = setMetric(name, TimerMetric.class, new TimerMetric(new MultiThreadTimer(clock))); |
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92 } |
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93 return timer; |
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94 } |
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95 |
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96 static synchronized Metrics.Rate getRate(String name, Metrics.Counter count, Clock clock) { |
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97 Metrics.Rate rate = getMetric(name, Metrics.Rate.class); |
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98 if (rate == null) { |
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99 rate = setMetric(name, Metrics.Rate.class, new Metrics.Rate(count, clock)); |
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100 } |
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101 return rate; |
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102 } |
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103 |
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104 public static <T extends Metric> T getMetric(String name, Class<T> mClass) { |
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105 final MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass)); |
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106 if (metricSet != null) { |
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107 final T metric = metricSet.metrics.get(name); |
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108 if (metric != null) { |
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109 return metric; |
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110 } |
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111 } |
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112 return null; |
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113 } |
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114 |
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115 public static <T extends Metric> T setMetric(String name, Class<T> mClass, T metric) { |
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116 MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass)); |
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117 if (metricSet == null) { |
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118 metricSet = new MetricSet<>(mClass); |
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119 metricSets.put(mClass, metricSet); |
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120 } |
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121 metricSet.metrics.put(name, metric); |
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122 return metric; |
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123 } |
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124 |
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125 /** |
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126 * Resets of all the currently registered metrics. |
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127 */ |
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128 public static synchronized void reset() { |
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129 for (MetricSet<? extends Metric> metricSet : metricSets.values()) { |
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130 for (Metric metric : metricSet.metrics.values()) { |
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131 metric.reset(); |
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132 } |
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133 } |
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134 } |
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135 |
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136 /** |
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137 * This method prints a report of all the metrics that have been created during this |
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138 * execution run. |
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139 * @param stream the print stream to which to print the report |
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140 */ |
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141 public static synchronized void report(PrintStream stream) { |
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142 final Map<String, Metric> allMetrics = new HashMap<>(); |
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143 for (MetricSet<? extends Metric> metricSet : metricSets.values()) { |
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144 allMetrics.putAll(metricSet.metrics); |
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145 } |
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146 |
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147 Map.Entry<String, Metric>[] array = Utils.cast(new Map.Entry[allMetrics.size()]); |
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148 array = allMetrics.entrySet().toArray(array); |
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149 Arrays.sort(array, new GlobalMetrics.EntryComparator()); |
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150 for (Map.Entry<String, Metric> entry : array) { |
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151 if (entry.getKey().length() > Metrics.longestMetricName) { |
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152 Metrics.longestMetricName = entry.getKey().length(); |
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153 } |
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154 } |
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155 for (Map.Entry<String, Metric> entry : array) { |
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156 entry.getValue().report(entry.getKey(), stream); |
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157 } |
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158 stream.flush(); |
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159 } |
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160 |
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161 } |