Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotProfilingInfo.java @ 23996:11f0412408cd
8173912: [JVMCI] fix memory overhead of JVMCI
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 03 Feb 2017 21:08:05 +0100 |
parents | 286dce1eca9b |
children |
rev | line source |
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4446 | 1 /* |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
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23 package jdk.vm.ci.hotspot; |
4446 | 24 |
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25 import jdk.vm.ci.meta.DeoptimizationReason; |
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26 import jdk.vm.ci.meta.JavaMethodProfile; |
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27 import jdk.vm.ci.meta.JavaTypeProfile; |
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28 import jdk.vm.ci.meta.ProfilingInfo; |
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29 import jdk.vm.ci.meta.TriState; |
4446 | 30 |
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31 public final class HotSpotProfilingInfo implements ProfilingInfo { |
4446 | 32 |
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33 private final HotSpotMethodData methodData; |
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34 private final HotSpotResolvedJavaMethod method; |
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35 |
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36 private boolean isMature; |
4446 | 37 private int position; |
38 private int hintPosition; | |
39 private int hintBCI; | |
40 private HotSpotMethodDataAccessor dataAccessor; | |
41 | |
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42 private boolean includeNormal; |
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43 private boolean includeOSR; |
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44 |
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45 public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) { |
4446 | 46 this.methodData = methodData; |
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47 this.method = method; |
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48 this.includeNormal = includeNormal; |
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49 this.includeOSR = includeOSR; |
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50 this.isMature = methodData.isProfileMature(); |
4446 | 51 hintPosition = 0; |
52 hintBCI = -1; | |
53 } | |
54 | |
55 @Override | |
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56 public int getCodeSize() { |
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57 return method.getCodeSize(); |
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58 } |
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59 |
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60 public int getDecompileCount() { |
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61 return methodData.getDecompileCount(); |
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62 } |
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63 |
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64 public int getOverflowRecompileCount() { |
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65 return methodData.getOverflowRecompileCount(); |
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66 } |
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67 |
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68 public int getOverflowTrapCount() { |
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69 return methodData.getOverflowTrapCount(); |
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70 } |
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71 |
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72 @Override |
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73 public JavaTypeProfile getTypeProfile(int bci) { |
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74 if (!isMature) { |
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75 return null; |
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76 } |
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77 findBCI(bci, false); |
4446 | 78 return dataAccessor.getTypeProfile(methodData, position); |
79 } | |
80 | |
81 @Override | |
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82 public JavaMethodProfile getMethodProfile(int bci) { |
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83 if (!isMature) { |
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84 return null; |
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85 } |
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86 findBCI(bci, false); |
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87 return dataAccessor.getMethodProfile(methodData, position); |
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88 } |
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89 |
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90 @Override |
4446 | 91 public double getBranchTakenProbability(int bci) { |
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92 if (!isMature) { |
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93 return -1; |
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94 } |
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95 findBCI(bci, false); |
4446 | 96 return dataAccessor.getBranchTakenProbability(methodData, position); |
97 } | |
98 | |
99 @Override | |
100 public double[] getSwitchProbabilities(int bci) { | |
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101 if (!isMature) { |
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102 return null; |
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103 } |
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104 findBCI(bci, false); |
4446 | 105 return dataAccessor.getSwitchProbabilities(methodData, position); |
106 } | |
107 | |
108 @Override | |
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109 public TriState getExceptionSeen(int bci) { |
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110 findBCI(bci, true); |
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111 return dataAccessor.getExceptionSeen(methodData, position); |
4446 | 112 } |
113 | |
114 @Override | |
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115 public TriState getNullSeen(int bci) { |
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116 findBCI(bci, false); |
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117 return dataAccessor.getNullSeen(methodData, position); |
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118 } |
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119 |
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120 @Override |
4446 | 121 public int getExecutionCount(int bci) { |
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122 if (!isMature) { |
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123 return -1; |
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124 } |
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125 findBCI(bci, false); |
4446 | 126 return dataAccessor.getExecutionCount(methodData, position); |
127 } | |
128 | |
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129 @Override |
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130 public int getDeoptimizationCount(DeoptimizationReason reason) { |
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131 int count = 0; |
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132 if (includeNormal) { |
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133 count += methodData.getDeoptimizationCount(reason); |
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134 } |
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135 if (includeOSR) { |
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136 count += methodData.getOSRDeoptimizationCount(reason); |
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137 } |
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138 return count; |
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139 } |
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140 |
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141 private void findBCI(int targetBCI, boolean searchExtraData) { |
4446 | 142 assert targetBCI >= 0 : "invalid BCI"; |
143 | |
144 if (methodData.hasNormalData()) { | |
145 int currentPosition = targetBCI < hintBCI ? 0 : hintPosition; | |
146 HotSpotMethodDataAccessor currentAccessor; | |
147 while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) { | |
148 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
149 if (currentBCI == targetBCI) { | |
150 normalDataFound(currentAccessor, currentPosition, currentBCI); | |
151 return; | |
152 } else if (currentBCI > targetBCI) { | |
153 break; | |
154 } | |
155 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
156 } | |
157 } | |
158 | |
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159 boolean exceptionPossiblyNotRecorded = false; |
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160 if (searchExtraData && methodData.hasExtraData()) { |
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161 int currentPosition = methodData.getExtraDataBeginOffset(); |
4446 | 162 HotSpotMethodDataAccessor currentAccessor; |
163 while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) { | |
164 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
165 if (currentBCI == targetBCI) { | |
166 extraDataFound(currentAccessor, currentPosition); | |
167 return; | |
168 } | |
169 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
170 } | |
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171 |
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172 if (!methodData.isWithin(currentPosition)) { |
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173 exceptionPossiblyNotRecorded = true; |
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174 } |
4446 | 175 } |
176 | |
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177 noDataFound(exceptionPossiblyNotRecorded); |
4446 | 178 } |
179 | |
180 private void normalDataFound(HotSpotMethodDataAccessor data, int pos, int bci) { | |
181 setCurrentData(data, pos); | |
182 this.hintPosition = position; | |
183 this.hintBCI = bci; | |
184 } | |
185 | |
186 private void extraDataFound(HotSpotMethodDataAccessor data, int pos) { | |
187 setCurrentData(data, pos); | |
188 } | |
189 | |
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190 private void noDataFound(boolean exceptionPossiblyNotRecorded) { |
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191 HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded); |
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192 setCurrentData(accessor, -1); |
4446 | 193 } |
194 | |
195 private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { | |
196 this.dataAccessor = dataAccessor; | |
197 this.position = position; | |
198 } | |
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199 |
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200 @Override |
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201 public boolean isMature() { |
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202 return isMature; |
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203 } |
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204 |
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205 public void ignoreMature() { |
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206 isMature = true; |
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207 } |
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208 |
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209 @Override |
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210 public String toString() { |
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211 return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">"; |
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212 } |
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213 |
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214 @Override |
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215 public void setMature() { |
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216 isMature = true; |
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217 } |
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218 |
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219 /** |
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220 * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type |
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221 * which will be determined by the first JVMCI compiler that calls |
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222 * {@link #setCompilerIRSize(Class, int)}. |
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223 */ |
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224 private static volatile Class<?> supportedCompilerIRType; |
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225 |
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226 @Override |
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227 public boolean setCompilerIRSize(Class<?> irType, int size) { |
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228 if (supportedCompilerIRType == null) { |
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229 synchronized (HotSpotProfilingInfo.class) { |
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230 if (supportedCompilerIRType == null) { |
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231 supportedCompilerIRType = irType; |
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232 } |
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233 } |
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234 } |
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235 if (supportedCompilerIRType != irType) { |
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236 return false; |
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237 } |
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238 methodData.setCompiledIRSize(size); |
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239 return true; |
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240 } |
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241 |
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242 @Override |
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243 public int getCompilerIRSize(Class<?> irType) { |
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244 if (irType == supportedCompilerIRType) { |
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245 return methodData.getCompiledIRSize(); |
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246 } |
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247 return -1; |
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248 } |
4446 | 249 } |