6649622: HotSpot Biased locking needs tuning on latest CPUs

Reviewed-by: rasbold, kvn, kamg

src/share/vm/runtime/arguments.cpp

@@ -1365,6 +1365,9 @@ void Arguments::set_aggressive_opts_flags() {
   if (AggressiveOpts && FLAG_IS_DEFAULT(SpecialArraysEquals)) {
     FLAG_SET_DEFAULT(SpecialArraysEquals, true);
   }
+  if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) {
+    FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500);
+  }
 #endif
 
   if (AggressiveOpts) {