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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/CompilationStatistics.java @ 21526:1da7aef31a08

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created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 19 May 2015 23:16:07 +0200
parents 3c3cd36a3836
children 93c50cefb9e8
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1 /*
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2 * Copyright (c) 2012, 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.oracle.graal.hotspot;
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24
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25 import static java.lang.Thread.*;
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26
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27 import java.io.*;
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28 import java.lang.annotation.*;
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29 import java.lang.management.*;
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30 import java.lang.reflect.*;
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31 import java.util.*;
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32 import java.util.concurrent.*;
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33
21526
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34 import com.oracle.graal.hotspot.jvmci.*;
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35 import com.oracle.graal.hotspot.meta.*;
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36 import com.sun.management.ThreadMXBean;
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37
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38 @SuppressWarnings("unused")
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39 public final class CompilationStatistics {
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40
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41 private static final long RESOLUTION = 100000000;
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42 private static final boolean ENABLED = Boolean.getBoolean("graal.comp.stats");
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43
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44 private static final CompilationStatistics DUMMY = new CompilationStatistics(null, false);
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45
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46 private static ConcurrentLinkedDeque<CompilationStatistics> list = new ConcurrentLinkedDeque<>();
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48 private static final ThreadLocal<Deque<CompilationStatistics>> current = new ThreadLocal<Deque<CompilationStatistics>>() {
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49
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50 @Override
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51 protected Deque<CompilationStatistics> initialValue() {
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52 return new ArrayDeque<>();
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53 }
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54 };
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55
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56 @Retention(RetentionPolicy.RUNTIME)
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57 @Target(ElementType.FIELD)
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58 private static @interface NotReported {
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59 }
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60
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61 @Retention(RetentionPolicy.RUNTIME)
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62 @Target(ElementType.FIELD)
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63 private static @interface TimeValue {
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64 }
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65
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66 private static long zeroTime = System.nanoTime();
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67
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68 private static long getThreadAllocatedBytes() {
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69 ThreadMXBean thread = (ThreadMXBean) ManagementFactory.getThreadMXBean();
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70 return thread.getThreadAllocatedBytes(currentThread().getId());
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71 }
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72
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73 @NotReported private final long startTime;
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74 @NotReported private long threadAllocatedBytesStart;
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75
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76 private int bytecodeCount;
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77 private int codeSize;
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78 @TimeValue private long duration;
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79 private long memoryUsed;
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80 private final boolean osr;
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81 private final String holder;
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82 private final String name;
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83 private final String signature;
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84
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85 private CompilationStatistics(HotSpotResolvedJavaMethod method, boolean osr) {
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86 this.osr = osr;
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87 if (method != null) {
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88 holder = method.getDeclaringClass().getName();
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89 name = method.getName();
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90 signature = method.getSignature().toMethodDescriptor();
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91 startTime = System.nanoTime();
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92 bytecodeCount = method.getCodeSize();
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93 threadAllocatedBytesStart = getThreadAllocatedBytes();
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94 } else {
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95 holder = "";
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96 name = "";
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97 signature = "";
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98 startTime = 0;
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99 }
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100 }
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101
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102 public void finish(HotSpotResolvedJavaMethod method, HotSpotInstalledCode code) {
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103 if (ENABLED) {
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104 duration = System.nanoTime() - startTime;
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105 codeSize = (int) code.getCodeSize();
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106 memoryUsed = getThreadAllocatedBytes() - threadAllocatedBytesStart;
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107 if (current.get().getLast() != this) {
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108 throw new RuntimeException("mismatch in finish()");
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109 }
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110 current.get().removeLast();
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111 }
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112 }
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113
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114 public static CompilationStatistics current() {
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115 return current.get().isEmpty() ? null : current.get().getLast();
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116 }
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117
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118 public static CompilationStatistics create(HotSpotResolvedJavaMethod method, boolean isOSR) {
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119 if (ENABLED) {
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120 CompilationStatistics stats = new CompilationStatistics(method, isOSR);
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121 list.add(stats);
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122 current.get().addLast(stats);
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123 return stats;
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124 } else {
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125 return DUMMY;
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126 }
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127 }
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128
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129 @SuppressWarnings("deprecation")
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130 public static void clear(String dumpName) {
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131 if (!ENABLED) {
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132 return;
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133 }
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134 try {
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135 ConcurrentLinkedDeque<CompilationStatistics> snapshot = list;
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136 long snapshotZeroTime = zeroTime;
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137
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138 list = new ConcurrentLinkedDeque<>();
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139 zeroTime = System.nanoTime();
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140
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141 Date now = new Date();
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142 String dateString = (now.getYear() + 1900) + "-" + (now.getMonth() + 1) + "-" + now.getDate() + "-" + now.getHours() + "" + now.getMinutes();
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143
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144 dumpCompilations(snapshot, dumpName, dateString);
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145
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146 try (FileOutputStream fos = new FileOutputStream("timeline_" + dateString + "_" + dumpName + ".csv", true); PrintStream out = new PrintStream(fos)) {
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147
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148 long[] timeSpent = new long[10000];
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149 int maxTick = 0;
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150 for (CompilationStatistics stats : snapshot) {
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151 long start = stats.startTime - snapshotZeroTime;
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152 long duration = stats.duration;
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153 if (start < 0) {
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154 duration -= -start;
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155 start = 0;
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156 }
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157
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158 int tick = (int) (start / RESOLUTION);
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159 long timeLeft = RESOLUTION - (start % RESOLUTION);
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160
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161 while (tick < timeSpent.length && duration > 0) {
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162 if (tick > maxTick) {
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163 maxTick = tick;
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164 }
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165 timeSpent[tick] += Math.min(timeLeft, duration);
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166 duration -= timeLeft;
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167 tick++;
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168 timeLeft = RESOLUTION;
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169 }
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170 }
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171 String timelineName = System.getProperty("stats.timeline.name");
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172 if (timelineName != null && !timelineName.isEmpty()) {
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173 out.print(timelineName + "\t");
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174 }
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175 for (int i = 0; i <= maxTick; i++) {
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176 out.print((timeSpent[i] * 100 / RESOLUTION) + "\t");
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177 }
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178 out.println();
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179 }
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180 } catch (Exception e) {
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181 throw new RuntimeException(e);
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182 }
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183 }
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184
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185 protected static void dumpCompilations(ConcurrentLinkedDeque<CompilationStatistics> snapshot, String dumpName, String dateString) throws IllegalAccessException, FileNotFoundException {
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186 String fileName = "compilations_" + dateString + "_" + dumpName + ".csv";
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187 try (PrintStream out = new PrintStream(fileName)) {
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188 // output the list of all compilations
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189
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190 Field[] declaredFields = CompilationStatistics.class.getDeclaredFields();
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191 ArrayList<Field> fields = new ArrayList<>();
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192 for (Field field : declaredFields) {
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193 if (!Modifier.isStatic(field.getModifiers()) && !field.isAnnotationPresent(NotReported.class)) {
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194 fields.add(field);
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195 }
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196 }
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197 for (Field field : fields) {
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198 out.print(field.getName() + "\t");
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199 }
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200 out.println();
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201 for (CompilationStatistics stats : snapshot) {
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202 for (Field field : fields) {
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203 if (field.isAnnotationPresent(TimeValue.class)) {
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204 double value = field.getLong(stats) / 1000000d;
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205 out.print(String.format(Locale.ENGLISH, "%.3f", value) + "\t");
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206 } else {
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207 out.print(field.get(stats) + "\t");
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208 }
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209 }
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210 out.println();
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211 }
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212 }
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213 }
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214 }