--- old/src/hotspot/share/runtime/globals.hpp	2018-03-28 09:36:51.875882194 +0200
+++ new/src/hotspot/share/runtime/globals.hpp	2018-03-28 09:36:46.402906376 +0200
@@ -4065,7 +4065,8 @@
   develop(bool, VerifyMetaspace, false,                                     \
           "Verify metaspace on chunk movements.")                           \
                                                                             \
-
+  experimental(bool, UseSwitchProfiling, true,                              \
+          "leverage profiling for table/lookup switch")                     \
 
 
 /*