diff options
Diffstat (limited to 'deps/v8/src/heap/gc-tracer.h')
| -rw-r--r-- | deps/v8/src/heap/gc-tracer.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/deps/v8/src/heap/gc-tracer.h b/deps/v8/src/heap/gc-tracer.h index fb0f001e3d..f35fa50d45 100644 --- a/deps/v8/src/heap/gc-tracer.h +++ b/deps/v8/src/heap/gc-tracer.h @@ -300,6 +300,11 @@ class V8_EXPORT_PRIVATE GCTracer { void NotifyIncrementalMarkingStart(); + // Returns average mutator utilization with respect to mark-compact + // garbage collections. This ignores scavenger. + double AverageMarkCompactMutatorUtilization() const; + double CurrentMarkCompactMutatorUtilization() const; + V8_INLINE void AddScopeSample(Scope::ScopeId scope, double duration) { DCHECK(scope < Scope::NUMBER_OF_SCOPES); if (scope >= Scope::FIRST_INCREMENTAL_SCOPE && @@ -328,6 +333,7 @@ class V8_EXPORT_PRIVATE GCTracer { FRIEND_TEST(GCTracerTest, IncrementalMarkingDetails); FRIEND_TEST(GCTracerTest, IncrementalScope); FRIEND_TEST(GCTracerTest, IncrementalMarkingSpeed); + FRIEND_TEST(GCTracerTest, MutatorUtilization); struct BackgroundCounter { double total_duration_ms; @@ -344,6 +350,8 @@ class V8_EXPORT_PRIVATE GCTracer { void ResetForTesting(); void ResetIncrementalMarkingCounters(); void RecordIncrementalMarkingSpeed(size_t bytes, double duration); + void RecordMutatorUtilization(double mark_compactor_end_time, + double mark_compactor_duration); // Print one detailed trace line in name=value format. // TODO(ernstm): Move to Heap. @@ -415,6 +423,12 @@ class V8_EXPORT_PRIVATE GCTracer { // Counts how many tracers were started without stopping. int start_counter_; + // Used for computing average mutator utilization. + double average_mutator_duration_; + double average_mark_compact_duration_; + double current_mark_compact_mutator_utilization_; + double previous_mark_compact_end_time_; + base::RingBuffer<BytesAndDuration> recorded_minor_gcs_total_; base::RingBuffer<BytesAndDuration> recorded_minor_gcs_survived_; base::RingBuffer<BytesAndDuration> recorded_compactions_; |