Add histograms for total allocated/live heap size, as well as allocated size and percentage of tota…

src/v8-counters.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 27 matching lines @@
     name##_ = name;
     HISTOGRAM_TIMER_LIST(HT)
 #undef HT
 
 #define HP(name, caption) \
     Histogram name = { #caption, 0, 101, 100, NULL, false }; \
     name##_ = name;
     HISTOGRAM_PERCENTAGE_LIST(HP)
 #undef HP
 
+#define HM(name, caption) \
+    Histogram name = { #caption, 1000, 500000, 50, NULL, false }; \
+    name##_ = name;
+    HISTOGRAM_MEMORY_LIST(HM)
+#undef HM
+
 #define SC(name, caption) \
     StatsCounter name = { "c:" #caption, NULL, false };\
     name##_ = name;
 
     STATS_COUNTER_LIST_1(SC)
     STATS_COUNTER_LIST_2(SC)
 #undef SC
 
 #define SC(name) \
     StatsCounter count_of_##name = { "c:" "V8.CountOf_" #name, NULL, false };\
@@ skipping 36 matching lines @@
 }
 
 void Counters::ResetHistograms() {
 #define HT(name, caption) name##_.Reset();
     HISTOGRAM_TIMER_LIST(HT)
 #undef HT
 
 #define HP(name, caption) name##_.Reset();
     HISTOGRAM_PERCENTAGE_LIST(HP)
 #undef HP
+
+#define HM(name, caption) name##_.Reset();
+    HISTOGRAM_MEMORY_LIST(HM)
+#undef HM
 }
 
 } }  // namespace v8::internal