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annotate graal/com.oracle.max.base/src/com/sun/max/profile/GlobalMetrics.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children
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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 }