--- a/hotspot/src/cpu/aarch64/vm/templateInterpreterGenerator_aarch64.cpp	Sat Feb 20 15:15:35 2016 +0000
+++ b/hotspot/src/cpu/aarch64/vm/templateInterpreterGenerator_aarch64.cpp	Sat Mar 05 22:22:37 2016 +0800
@@ -1984,6 +1984,7 @@
   __ push(rscratch3);
   Label L;
   __ mov(rscratch2, (address) &BytecodeCounter::_counter_value);
+  __ prfm(Address(rscratch2), PSTL1STRM);
   __ bind(L);
   __ ldxr(rscratch1, rscratch2);
   __ add(rscratch1, rscratch1, 1);