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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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