diff -r 9a7135d0a309 -r 7386b3a385ac src/share/vm/services/memoryPool.hpp
--- a/src/share/vm/services/memoryPool.hpp	Tue Dec 17 05:07:06 2019 +0000
+++ b/src/share/vm/services/memoryPool.hpp	Tue Dec 17 05:26:57 2019 +0000
@@ -198,7 +198,7 @@
                                bool support_usage_threshold);
 
   MemoryUsage get_memory_usage();
-  size_t used_in_bytes()            { return _space->used(); }
+  size_t used_in_bytes()            { return _space->used_stable(); }
 };
 #endif // INCLUDE_ALL_GCS