ioilinux /jdk2/lee/open/test/hotspot/jtreg/runtime/cds/appcds$ hg diff
diff -r 8ada048df69d src/hotspot/share/memory/heapShared.cpp
--- a/src/hotspot/share/memory/heapShared.cpp	Sun Aug 09 20:56:04 2020 -0700
+++ b/src/hotspot/share/memory/heapShared.cpp	Sun Aug 09 21:08:37 2020 -0700
@@ -1051,15 +1051,23 @@
   FindEmbeddedNonNullPointers finder((narrowOop*)p, &oopmap);
 
   int num_objs = 0;
+  size_t total_bytes = 0;
+  size_t noptr_bytes = 0;
   while (p < end) {
+    int num_non_null_oops = finder.num_total_oops() -  finder.num_null_oops();
     oop o = (oop)p;
     o->oop_iterate(&finder);
     p += o->size();
     ++ num_objs;
+    total_bytes += o->size() * BytesPerWord;
+    if (num_non_null_oops == finder.num_total_oops() -  finder.num_null_oops()) {
+      // There was no embedded non-null oops in this object
+      noptr_bytes += o->size() * BytesPerWord;
+    }
   }
 
-  log_info(cds, heap)("calculate_oopmap: objects = %6d, embedded oops = %7d, nulls = %7d",
-                      num_objs, finder.num_total_oops(), finder.num_null_oops());
+  log_info(cds, heap)("calculate_oopmap: objects = %6d (%d bytes, %d bytes don't need marking), embedded oops = %7d, nulls = %7d",                      
+                      num_objs, (int)total_bytes, (int)noptr_bytes, finder.num_total_oops(), finder.num_null_oops());
   return oopmap;
 }