Fix marking time in cumulative gc stats.

src/heap/heap.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 5286 matching lines @@
   UpdateMaximumCommitted();
 
   if (FLAG_print_cumulative_gc_stat) {
     PrintF("\n");
     PrintF("gc_count=%d ", gc_count_);
     PrintF("mark_sweep_count=%d ", ms_count_);
     PrintF("max_gc_pause=%.1f ", get_max_gc_pause());
     PrintF("total_gc_time=%.1f ", total_gc_time_ms_);
     PrintF("min_in_mutator=%.1f ", get_min_in_mutator());
     PrintF("max_alive_after_gc=%" V8_PTR_PREFIX "d ", get_max_alive_after_gc());
-    PrintF("total_marking_time=%.1f ", tracer_.cumulative_sweeping_duration());
+    PrintF("total_marking_time=%.1f ", tracer_.cumulative_marking_duration());
     PrintF("total_sweeping_time=%.1f ", tracer_.cumulative_sweeping_duration());
     PrintF("\n\n");
   }
 
   if (FLAG_print_max_heap_committed) {
     PrintF("\n");
     PrintF("maximum_committed_by_heap=%" V8_PTR_PREFIX "d ",
            MaximumCommittedMemory());
     PrintF("maximum_committed_by_new_space=%" V8_PTR_PREFIX "d ",
            new_space_.MaximumCommittedMemory());
@@ skipping 934 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 }
 }  // namespace v8::internal