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annotate truffle/com.oracle.truffle.object/src/com/oracle/truffle/object/debug/ShapeProfiler.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents af393429ae26
children
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1 /*
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2 * Copyright (c) 2014, 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 package com.oracle.truffle.object.debug;
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24
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25 import com.oracle.truffle.api.object.DynamicObject;
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26 import com.oracle.truffle.api.object.Shape;
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27 import com.oracle.truffle.object.ObjectStorageOptions;
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28 import com.oracle.truffle.object.ShapeImpl;
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29 import java.io.PrintWriter;
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30 import java.text.DecimalFormat;
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31 import java.util.ArrayList;
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32 import java.util.Collections;
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33 import java.util.Comparator;
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34 import java.util.IdentityHashMap;
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35 import java.util.List;
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36 import java.util.concurrent.ConcurrentLinkedQueue;
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37
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38 public class ShapeProfiler {
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39 private static final String LINE_SEPARATOR = "***********************************************";
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40 private static final String BULLET = "* ";
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41 private static final String TOKEN_SEPARATOR = "\t";
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42 private final ConcurrentLinkedQueue<DynamicObject> queue;
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43
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44 public ShapeProfiler() {
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45 queue = new ConcurrentLinkedQueue<>();
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46 }
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47
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48 public void track(DynamicObject obj) {
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49 queue.add(obj);
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50 }
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51
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52 public void dump(PrintWriter out) {
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53 ShapeStats globalStats = new ShapeStats("Cumulative results for all shapes");
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54 for (DynamicObject obj : queue) {
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55 Shape shape = obj.getShape();
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56 globalStats.profile(shape);
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57 }
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58
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59 globalStats.dump(out);
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60 }
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61
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62 public void dump(PrintWriter out, int topResults) {
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63 if (topResults > 0) {
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64 IdentityHashMap<Shape, ShapeStats> shapeMap = new IdentityHashMap<>();
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65
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66 for (DynamicObject obj : queue) {
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67 Shape shape = obj.getShape();
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68 ShapeStats stats = shapeMap.get(shape);
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69 if (stats == null) {
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70 shapeMap.put(shape, stats = new ShapeStats(createLabel(shape)));
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71 }
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72 stats.profile(shape);
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73 }
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74
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75 List<ShapeStats> allStats = new ArrayList<>(shapeMap.values());
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76 Collections.sort(allStats, new Comparator<ShapeStats>() {
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77 public int compare(ShapeStats a, ShapeStats b) {
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78 return Long.compare(b.jsObjects, a.jsObjects);
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79 }
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80 });
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81
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82 ShapeStats avgStats = new ShapeStats("Cumulative results for top " + topResults + " shapes");
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83 for (int i = 0; i < topResults; i++) {
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84 ShapeStats stats = allStats.get(i);
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85 stats.setLabel("Shape " + (i + 1) + ": " + stats.getLabel());
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86 stats.dump(out);
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87 avgStats.add(stats);
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88 }
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89 avgStats.dump(out);
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90 }
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91 // Dump also cumulative results.
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92 dump(out);
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93 }
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94
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95 private static String createLabel(Shape shape) {
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96 String label = shape.toString();
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97 return label.substring(label.indexOf('{') + 1, label.lastIndexOf('}'));
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98 }
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99
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100 private static class ShapeStats {
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101 private String label;
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102 private long jsObjects;
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103 private long oac;
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104 private long oas;
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105 private long ofs;
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106 private long pac;
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107 private long pas;
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108 private long pfs;
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109
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110 public ShapeStats(String label) {
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111 this.label = label;
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112 }
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113
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114 public String getLabel() {
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115 return label;
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116 }
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117
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118 public void setLabel(String label) {
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119 this.label = label;
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120 }
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121
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122 public void profile(Shape shape) {
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123 jsObjects++;
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124 oac += ((ShapeImpl) shape).getObjectArrayCapacity();
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125 oas += ((ShapeImpl) shape).getObjectArraySize();
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126 ofs += ((ShapeImpl) shape).getObjectFieldSize();
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127 pac += ((ShapeImpl) shape).getPrimitiveArrayCapacity();
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128 pas += ((ShapeImpl) shape).getPrimitiveArraySize();
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129 pfs += ((ShapeImpl) shape).getPrimitiveFieldSize();
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130 }
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131
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132 public void add(ShapeStats stats) {
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133 jsObjects += stats.jsObjects;
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134 oac += stats.oac;
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135 oas += stats.oas;
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136 ofs += stats.ofs;
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137 oac += stats.oac;
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138 oas += stats.oas;
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139 ofs += stats.ofs;
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140 }
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141
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142 public void dump(PrintWriter out) {
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143 DecimalFormat format = new DecimalFormat("###.####");
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144 out.println(LINE_SEPARATOR);
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145 out.println(BULLET + label);
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146 out.println(LINE_SEPARATOR);
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147 out.println(BULLET + "Allocated objects:\t" + jsObjects);
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148 out.println(BULLET + "Total object array capacity:\t" + oac);
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149 out.println(BULLET + "Total object array size:\t" + oas);
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150 out.println(BULLET + "Total object field size:\t" + ofs);
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151 out.println(BULLET + "Average object array capacity:\t" + avgOAC(format));
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152 out.println(BULLET + "Average object array size:\t" + avgOAS(format));
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153 out.println(BULLET + "Average object field size:\t" + avgOFS(format));
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154 out.println(LINE_SEPARATOR);
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155 out.println(BULLET + "Total primitive array capacity:\t" + pac);
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156 out.println(BULLET + "Total primitive array size:\t" + pas);
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157 out.println(BULLET + "Total primitive field size:\t" + pfs);
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158 out.println(BULLET + "Average primitive array capacity:\t" + avgPAC(format));
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159 out.println(BULLET + "Average primitive array size:\t" + avgPAS(format));
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160 out.println(BULLET + "Average primitive field size:\t" + avgPFS(format));
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161 out.println(LINE_SEPARATOR);
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162 out.println(BULLET + toString());
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163 out.println(LINE_SEPARATOR + "\n");
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164 out.flush();
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165 }
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166
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167 @Override
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168 public String toString() {
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169 DecimalFormat format = new DecimalFormat("###.####");
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170 // @formatter:off
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171 return "{" + label + "}" + TOKEN_SEPARATOR
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172 + jsObjects + TOKEN_SEPARATOR
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173 + avgOAC(format) + TOKEN_SEPARATOR
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174 + avgOAS(format) + TOKEN_SEPARATOR
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175 + avgOFS(format) + TOKEN_SEPARATOR
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176 + avgPAC(format) + TOKEN_SEPARATOR
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177 + avgPAS(format) + TOKEN_SEPARATOR
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178 + avgPFS(format);
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179 // @formatter:on
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180 }
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181
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182 private String avgOAC(DecimalFormat format) {
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183 return format.format((double) oac / jsObjects);
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184 }
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185
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186 private String avgOAS(DecimalFormat format) {
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187 return format.format((double) oas / jsObjects);
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188 }
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189
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190 private String avgOFS(DecimalFormat format) {
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191 return format.format((double) ofs / jsObjects);
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192 }
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193
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194 private String avgPAC(DecimalFormat format) {
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195 return format.format((double) pac / jsObjects);
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196 }
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197
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198 private String avgPAS(DecimalFormat format) {
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199 return format.format((double) pas / jsObjects);
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200 }
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201
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202 private String avgPFS(DecimalFormat format) {
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203 return format.format((double) pfs / jsObjects);
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204 }
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205 }
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206
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207 public static ShapeProfiler getInstance() {
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208 return shapeProf;
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209 }
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210
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211 private static final ShapeProfiler shapeProf;
22003
5bc7f7b867ab Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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212
18408
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213 static {
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214 if (ObjectStorageOptions.Profile) {
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215 shapeProf = new ShapeProfiler();
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216 Runtime.getRuntime().addShutdownHook(new Thread() {
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217 @Override
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218 public void run() {
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219 getInstance().dump(new PrintWriter(System.out), ObjectStorageOptions.ProfileTopResults);
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220 }
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221 });
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222 } else {
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223 shapeProf = null;
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224 }
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225 }
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226 }