--- a/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp	Mon Apr 09 18:40:20 2018 +0300
+++ b/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp	Mon Apr 09 18:43:40 2018 +0300
@@ -203,7 +203,11 @@
     if (FLAG_IS_DEFAULT(UseSIMDForMemoryOps)) {
       FLAG_SET_DEFAULT(UseSIMDForMemoryOps, (_variant > 0));
     }
+    if (FLAG_IS_DEFAULT(UseSIMDForArrayEquals)) {
+      FLAG_SET_DEFAULT(UseSIMDForArrayEquals, false);
+    }
   }
+
   // ThunderX2
   if ((_cpu == CPU_CAVIUM && (_model == 0xAF)) ||
       (_cpu == CPU_BROADCOM && (_model == 0x516))) {
@@ -218,7 +222,25 @@
     }
   }
 
-  if (_cpu == CPU_ARM && (_model == 0xd03 || _model2 == 0xd03)) _features |= CPU_A53MAC;
+  // Cortex A53
+  if (_cpu == CPU_ARM && (_model == 0xd03 || _model2 == 0xd03)) {
+    _features |= CPU_A53MAC;
+    if (FLAG_IS_DEFAULT(UseSIMDForArrayEquals)) {
+      FLAG_SET_DEFAULT(UseSIMDForArrayEquals, false);
+    }
+  }
+
+  // Cortex A73
+  if (_cpu == CPU_ARM && (_model == 0xd09 || _model2 == 0xd09)) {
+    if (FLAG_IS_DEFAULT(SoftwarePrefetchHintDistance)) {
+      FLAG_SET_DEFAULT(SoftwarePrefetchHintDistance, -1);
+    }
+    // A73 is faster with short-and-easy-for-speculative-execution-loop
+    if (FLAG_IS_DEFAULT(UseSimpleArrayEquals)) {
+      FLAG_SET_DEFAULT(UseSimpleArrayEquals, true);
+    }
+  }
+
   if (_cpu == CPU_ARM && (_model == 0xd07 || _model2 == 0xd07)) _features |= CPU_STXR_PREFETCH;
   // If an olde style /proc/cpuinfo (cpu_lines == 1) then if _model is an A57 (0xd07)
   // we assume the worst and assume we could be on a big little system and have