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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef V8_HEAP_GC_TRACER_H_ | 5 #ifndef V8_HEAP_GC_TRACER_H_ |
| 6 #define V8_HEAP_GC_TRACER_H_ | 6 #define V8_HEAP_GC_TRACER_H_ |
| 7 | 7 |
| 8 #include "src/base/compiler-specific.h" | |
| 9 #include "src/base/platform/platform.h" | 8 #include "src/base/platform/platform.h" |
| 10 #include "src/counters.h" | 9 #include "src/counters.h" |
| 11 #include "src/globals.h" | 10 #include "src/globals.h" |
| 12 | 11 |
| 13 namespace v8 { | 12 namespace v8 { |
| 14 namespace internal { | 13 namespace internal { |
| 15 | 14 |
| 16 template <typename T> | 15 template <typename T> |
| 17 class RingBuffer { | 16 class RingBuffer { |
| 18 public: | 17 public: |
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| 377 // Print one detailed trace line in name=value format. | 376 // Print one detailed trace line in name=value format. |
| 378 // TODO(ernstm): Move to Heap. | 377 // TODO(ernstm): Move to Heap. |
| 379 void PrintNVP() const; | 378 void PrintNVP() const; |
| 380 | 379 |
| 381 // Print one trace line. | 380 // Print one trace line. |
| 382 // TODO(ernstm): Move to Heap. | 381 // TODO(ernstm): Move to Heap. |
| 383 void Print() const; | 382 void Print() const; |
| 384 | 383 |
| 385 // Prints a line and also adds it to the heap's ring buffer so that | 384 // Prints a line and also adds it to the heap's ring buffer so that |
| 386 // it can be included in later crash dumps. | 385 // it can be included in later crash dumps. |
| 387 void PRINTF_FORMAT(2, 3) Output(const char* format, ...) const; | 386 void Output(const char* format, ...) const; |
| 388 | 387 |
| 389 void ClearMarkCompactStatistics() { | 388 void ClearMarkCompactStatistics() { |
| 390 cumulative_incremental_marking_steps_ = 0; | 389 cumulative_incremental_marking_steps_ = 0; |
| 391 cumulative_incremental_marking_bytes_ = 0; | 390 cumulative_incremental_marking_bytes_ = 0; |
| 392 cumulative_incremental_marking_duration_ = 0; | 391 cumulative_incremental_marking_duration_ = 0; |
| 393 cumulative_pure_incremental_marking_duration_ = 0; | 392 cumulative_pure_incremental_marking_duration_ = 0; |
| 394 longest_incremental_marking_step_ = 0; | 393 longest_incremental_marking_step_ = 0; |
| 395 cumulative_incremental_marking_finalization_steps_ = 0; | 394 cumulative_incremental_marking_finalization_steps_ = 0; |
| 396 cumulative_incremental_marking_finalization_duration_ = 0; | 395 cumulative_incremental_marking_finalization_duration_ = 0; |
| 397 longest_incremental_marking_finalization_step_ = 0; | 396 longest_incremental_marking_finalization_step_ = 0; |
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| 491 RingBuffer<BytesAndDuration> recorded_old_generation_allocations_; | 490 RingBuffer<BytesAndDuration> recorded_old_generation_allocations_; |
| 492 RingBuffer<double> recorded_context_disposal_times_; | 491 RingBuffer<double> recorded_context_disposal_times_; |
| 493 RingBuffer<double> recorded_survival_ratios_; | 492 RingBuffer<double> recorded_survival_ratios_; |
| 494 | 493 |
| 495 DISALLOW_COPY_AND_ASSIGN(GCTracer); | 494 DISALLOW_COPY_AND_ASSIGN(GCTracer); |
| 496 }; | 495 }; |
| 497 } // namespace internal | 496 } // namespace internal |
| 498 } // namespace v8 | 497 } // namespace v8 |
| 499 | 498 |
| 500 #endif // V8_HEAP_GC_TRACER_H_ | 499 #endif // V8_HEAP_GC_TRACER_H_ |
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