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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/compiler-dispatcher/compiler-dispatcher-tracer.h" | 5 #include "src/compiler-dispatcher/compiler-dispatcher-tracer.h" |
6 | 6 |
7 #include "src/isolate.h" | 7 #include "src/isolate.h" |
8 #include "src/utils.h" | 8 #include "src/utils.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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142 double CompilerDispatcherTracer::EstimateFinalizeCompilingInMs() const { | 142 double CompilerDispatcherTracer::EstimateFinalizeCompilingInMs() const { |
143 base::LockGuard<base::Mutex> lock(&mutex_); | 143 base::LockGuard<base::Mutex> lock(&mutex_); |
144 return Average(finalize_compiling_events_); | 144 return Average(finalize_compiling_events_); |
145 } | 145 } |
146 | 146 |
147 void CompilerDispatcherTracer::DumpStatistics() const { | 147 void CompilerDispatcherTracer::DumpStatistics() const { |
148 PrintF( | 148 PrintF( |
149 "CompilerDispatcherTracer: " | 149 "CompilerDispatcherTracer: " |
150 "prepare_parsing=%.2lfms parsing=%.2lfms/kb finalize_parsing=%.2lfms " | 150 "prepare_parsing=%.2lfms parsing=%.2lfms/kb finalize_parsing=%.2lfms " |
151 "prepare_compiling=%.2lfms compiling=%.2lfms/kb " | 151 "prepare_compiling=%.2lfms compiling=%.2lfms/kb " |
152 "finalize_compilig=%.2lfms\n", | 152 "finalize_compiling=%.2lfms\n", |
153 EstimatePrepareToParseInMs(), EstimateParseInMs(1 * KB), | 153 EstimatePrepareToParseInMs(), EstimateParseInMs(1 * KB), |
154 EstimateFinalizeParsingInMs(), EstimatePrepareToCompileInMs(), | 154 EstimateFinalizeParsingInMs(), EstimatePrepareToCompileInMs(), |
155 EstimateCompileInMs(1 * KB), EstimateFinalizeCompilingInMs()); | 155 EstimateCompileInMs(1 * KB), EstimateFinalizeCompilingInMs()); |
156 } | 156 } |
157 | 157 |
158 double CompilerDispatcherTracer::Average( | 158 double CompilerDispatcherTracer::Average( |
159 const base::RingBuffer<double>& buffer) { | 159 const base::RingBuffer<double>& buffer) { |
160 if (buffer.Count() == 0) return 0.0; | 160 if (buffer.Count() == 0) return 0.0; |
161 double sum = buffer.Sum([](double a, double b) { return a + b; }, 0.0); | 161 double sum = buffer.Sum([](double a, double b) { return a + b; }, 0.0); |
162 return sum / buffer.Count(); | 162 return sum / buffer.Count(); |
163 } | 163 } |
164 | 164 |
165 double CompilerDispatcherTracer::Estimate( | 165 double CompilerDispatcherTracer::Estimate( |
166 const base::RingBuffer<std::pair<size_t, double>>& buffer, size_t num) { | 166 const base::RingBuffer<std::pair<size_t, double>>& buffer, size_t num) { |
167 if (buffer.Count() == 0) return kEstimatedRuntimeWithoutData; | 167 if (buffer.Count() == 0) return kEstimatedRuntimeWithoutData; |
168 std::pair<size_t, double> sum = buffer.Sum( | 168 std::pair<size_t, double> sum = buffer.Sum( |
169 [](std::pair<size_t, double> a, std::pair<size_t, double> b) { | 169 [](std::pair<size_t, double> a, std::pair<size_t, double> b) { |
170 return std::make_pair(a.first + b.first, a.second + b.second); | 170 return std::make_pair(a.first + b.first, a.second + b.second); |
171 }, | 171 }, |
172 std::make_pair(0, 0.0)); | 172 std::make_pair(0, 0.0)); |
173 return num * (sum.second / sum.first); | 173 return num * (sum.second / sum.first); |
174 } | 174 } |
175 | 175 |
176 } // namespace internal | 176 } // namespace internal |
177 } // namespace v8 | 177 } // namespace v8 |
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