Added sweeping time measurement for old space sweeping.

src/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7413 matching lines @@
       case MARK_COMPACTOR:
         PrintF("ms");
         break;
       default:
         UNREACHABLE();
     }
     PrintF(" ");
 
     PrintF("external=%.1f ", scopes_[Scope::EXTERNAL]);
     PrintF("mark=%.1f ", scopes_[Scope::MC_MARK]);
-    PrintF("sweep=%.1f ", scopes_[Scope::MC_SWEEP]);
-    PrintF("sweepns=%.1f ", scopes_[Scope::MC_SWEEP_NEWSPACE]);
+    PrintF("sweep=%.2f ", scopes_[Scope::MC_SWEEP]);
+    PrintF("sweepns=%.2f ", scopes_[Scope::MC_SWEEP_NEWSPACE]);
+    PrintF("sweepos=%.2f ", scopes_[Scope::MC_SWEEP_OLDSPACE]);
     PrintF("evacuate=%.1f ", scopes_[Scope::MC_EVACUATE_PAGES]);
     PrintF("new_new=%.1f ", scopes_[Scope::MC_UPDATE_NEW_TO_NEW_POINTERS]);
     PrintF("root_new=%.1f ", scopes_[Scope::MC_UPDATE_ROOT_TO_NEW_POINTERS]);
     PrintF("old_new=%.1f ", scopes_[Scope::MC_UPDATE_OLD_TO_NEW_POINTERS]);
     PrintF("compaction_ptrs=%.1f ",
         scopes_[Scope::MC_UPDATE_POINTERS_TO_EVACUATED]);
     PrintF("intracompaction_ptrs=%.1f ",
         scopes_[Scope::MC_UPDATE_POINTERS_BETWEEN_EVACUATED]);
     PrintF("misc_compaction=%.1f ", scopes_[Scope::MC_UPDATE_MISC_POINTERS]);
     PrintF("weakcollection_process=%.1f ",
@@ skipping 304 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
 
   OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal