--- old/src/share/vm/gc_implementation/shared/gcTraceSend.cpp	2019-03-21 15:28:17.214555097 +0800
+++ new/src/share/vm/gc_implementation/shared/gcTraceSend.cpp	2019-03-21 15:28:17.063559438 +0800
@@ -349,20 +349,20 @@
     }
   }
 
-//  void visit(const G1HeapSummary* g1_heap_summary) const {
-//    visit((GCHeapSummary*)g1_heap_summary);
-//
-//    EventG1HeapSummary e;
-//    if (e.should_commit()) {
-//      e.set_gcId(_shared_gc_info.gc_id().id());
-//      e.set_when((u1)_when);
-//      e.set_edenUsedSize(g1_heap_summary->edenUsed());
-//      e.set_edenTotalSize(g1_heap_summary->edenCapacity());
-//      e.set_survivorUsedSize(g1_heap_summary->survivorUsed());
-//      e.set_numberOfRegions(g1_heap_summary->numberOfRegions());
-//      e.commit();
-//    }
-//  }
+  void visit(const G1HeapSummary* g1_heap_summary) const {
+    visit((GCHeapSummary*)g1_heap_summary);
+
+    EventG1HeapSummary e;
+    if (e.should_commit()) {
+      e.set_gcId(_gc_id.id());
+      e.set_when((u1)_when);
+      e.set_edenUsedSize(g1_heap_summary->edenUsed());
+      e.set_edenTotalSize(g1_heap_summary->edenCapacity());
+      e.set_survivorUsedSize(g1_heap_summary->survivorUsed());
+      e.set_numberOfRegions(g1_heap_summary->numberOfRegions());
+      e.commit();
+    }
+  }
 
   void visit(const PSHeapSummary* ps_heap_summary) const {
     visit((GCHeapSummary*)ps_heap_summary);