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diff src/share/vm/runtime/globals.hpp @ 3892:baf763f388e6

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7059037: Use BIS for zeroing on T4 Summary: Use BIS for zeroing new allocated big (2Kb and more) objects and arrays. Reviewed-by: never, twisti, ysr
author kvn
date Fri, 26 Aug 2011 08:52:22 -0700
parents 1af104d6cf99
children 2f9b79ddb05c
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--- a/src/share/vm/runtime/globals.hpp	Thu Aug 25 20:29:30 2011 -0700
+++ b/src/share/vm/runtime/globals.hpp	Fri Aug 26 08:52:22 2011 -0700
@@ -1979,6 +1979,12 @@
   product(bool, TLABStats, true,                                            \
           "Print various TLAB related information")                         \
                                                                             \
+  product(bool, UseBlockZeroing, false,                                     \
+          "Use special cpu instructions for block zeroing")                 \
+                                                                            \
+  product(intx, BlockZeroingLowLimit, 2048,                                 \
+          "Minimum size in bytes when block zeroing will be used")          \
+                                                                            \
   product(bool, PrintRevisitStats, false,                                   \
           "Print revisit (klass and MDO) stack related information")        \
                                                                             \