*** old/src/share/vm/runtime/globals.hpp	Thu Sep  1 09:31:13 2011
--- new/src/share/vm/runtime/globals.hpp	Thu Sep  1 09:31:12 2011

*** 1983,1992 ****
--- 1983,1998 ----
            "Use special cpu instructions for block zeroing")                 \
                                                                              \
    product(intx, BlockZeroingLowLimit, 2048,                                 \
            "Minimum size in bytes when block zeroing will be used")          \
                                                                              \
+   product(bool, UseBlockCopy, false,                                        \
+           "Use special cpu instructions for block copy")                    \
+                                                                             \
+   product(intx, BlockCopyLowLimit, 2048,                                    \
+           "Minimum size in bytes when block copy will be used")             \
+                                                                             \
    product(bool, PrintRevisitStats, false,                                   \
            "Print revisit (klass and MDO) stack related information")        \
                                                                              \
    EMBEDDED_ONLY(product(bool, LowMemoryProtection, true,                    \
            "Enable LowMemoryProtection"))                                    \

*** 2916,2925 ****
--- 2922,2937 ----
            "Prefetch instruction to prefetch ahead of allocation pointer")   \
                                                                              \
    product(intx,  ReadPrefetchInstr, 0,                                      \
            "Prefetch instruction to prefetch ahead")                         \
                                                                              \
+   product(uintx,  ArraycopySrcPrefetchDistance, 0,                          \
+           "Distance to prefetch source array in arracopy")                  \
+                                                                             \
+   product(uintx,  ArraycopyDstPrefetchDistance, 0,                          \
+           "Distance to prefetch destination array in arracopy")             \
+                                                                             \
    /* deoptimization */                                                      \
    develop(bool, TraceDeoptimization, false,                                 \
            "Trace deoptimization")                                           \
                                                                              \
    develop(bool, DebugDeoptimization, false,                                 \