Print promotion rate and semi-space copy rate in --trace-gc-nvp.

src/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_H_
 #define V8_HEAP_H_
 
 #include <cmath>
 
 #include "allocation.h"
@@ skipping 1169 matching lines @@
   // by pointer size.
   static inline void CopyBlock(Address dst, Address src, int byte_size);
 
   // Optimized version of memmove for blocks with pointer size aligned sizes and
   // pointer size aligned addresses.
   static inline void MoveBlock(Address dst, Address src, int byte_size);
 
   // Check new space expansion criteria and expand semispaces if it was hit.
   void CheckNewSpaceExpansionCriteria();
 
+  inline void IncrementPromotedObjectsSize(int object_size) {
+    ASSERT(object_size > 0);
+    promoted_objects_size_ += object_size;
+  }
+
+  inline void IncrementSemiSpaceCopiedObjectSize(int object_size) {
+    ASSERT(object_size > 0);
+    semi_space_copied_object_size_ += object_size;
+  }
+
   inline void IncrementYoungSurvivorsCounter(int survived) {
     ASSERT(survived >= 0);
-    young_survivors_after_last_gc_ = survived;
     survived_since_last_expansion_ += survived;
   }
 
   inline bool NextGCIsLikelyToBeFull() {
     if (FLAG_gc_global) return true;
 
     if (FLAG_stress_compaction && (gc_count_ & 1) != 0) return true;
 
     intptr_t adjusted_allocation_limit =
         old_generation_allocation_limit_ - new_space_.Capacity();
@@ skipping 817 matching lines @@
   void UpdateSurvivalRateTrend(int start_new_space_size);
 
   enum SurvivalRateTrend { INCREASING, STABLE, DECREASING, FLUCTUATING };
 
   static const int kYoungSurvivalRateHighThreshold = 90;
   static const int kYoungSurvivalRateLowThreshold = 10;
   static const int kYoungSurvivalRateAllowedDeviation = 15;
 
   static const int kOldSurvivalRateLowThreshold = 10;
 
-  int young_survivors_after_last_gc_;
   int high_survival_rate_period_length_;
   int low_survival_rate_period_length_;
   double survival_rate_;
+  intptr_t promoted_objects_size_;
+  double promotion_rate_;
+  intptr_t semi_space_copied_object_size_;
+  double semi_space_copied_rate_;
   SurvivalRateTrend previous_survival_rate_trend_;
   SurvivalRateTrend survival_rate_trend_;
 
   void set_survival_rate_trend(SurvivalRateTrend survival_rate_trend) {
     ASSERT(survival_rate_trend != FLUCTUATING);
     previous_survival_rate_trend_ = survival_rate_trend_;
     survival_rate_trend_ = survival_rate_trend;
   }
 
   SurvivalRateTrend survival_rate_trend() {
@@ skipping 549 matching lines @@
 
   // Sets the collector.
   void set_collector(GarbageCollector collector) { collector_ = collector; }
 
   // Sets the GC count.
   void set_gc_count(unsigned int count) { gc_count_ = count; }
 
   // Sets the full GC count.
   void set_full_gc_count(int count) { full_gc_count_ = count; }
 
-  void increment_promoted_objects_size(int object_size) {
-    promoted_objects_size_ += object_size;
-  }
-
   void increment_nodes_died_in_new_space() {
     nodes_died_in_new_space_++;
   }
 
   void increment_nodes_copied_in_new_space() {
     nodes_copied_in_new_space_++;
   }
 
   void increment_nodes_promoted() {
     nodes_promoted_++;
@@ skipping 33 matching lines @@
   intptr_t in_free_list_or_wasted_before_gc_;
 
   // Difference between space used in the heap at the beginning of the current
   // collection and the end of the previous collection.
   intptr_t allocated_since_last_gc_;
 
   // Amount of time spent in mutator that is time elapsed between end of the
   // previous collection and the beginning of the current one.
   double spent_in_mutator_;
 
-  // Size of objects promoted during the current collection.
-  intptr_t promoted_objects_size_;
-
   // Number of died nodes in the new space.
   int nodes_died_in_new_space_;
 
   // Number of copied nodes to the new space.
   int nodes_copied_in_new_space_;
 
   // Number of promoted nodes to the old space.
   int nodes_promoted_;
 
   // Incremental marking steps counters.
@@ skipping 145 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_