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diff src/share/vm/gc_implementation/g1/g1_globals.hpp @ 4729:1cbe7978b021

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7113021: G1: automatically enable young gen size auto-tuning when -Xms==-Xmx Summary: Use a percentage of -Xms as min and another percentage of -Xmx as max for the young gen size Reviewed-by: tonyp, johnc
author brutisso
date Wed, 21 Dec 2011 22:13:31 +0100
parents a88de71c4e3a
children 1d6185f732aa
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line diff
--- a/src/share/vm/gc_implementation/g1/g1_globals.hpp	Wed Dec 14 13:34:57 2011 -0800
+++ b/src/share/vm/gc_implementation/g1/g1_globals.hpp	Wed Dec 21 22:13:31 2011 +0100
@@ -289,7 +289,15 @@
                                                                             \
   develop(uintx, G1ConcMarkForceOverflow, 0,                                \
           "The number of times we'll force an overflow during "             \
-          "concurrent marking")
+          "concurrent marking")                                             \
+                                                                            \
+  develop(uintx, G1DefaultMinNewGenPercent, 20,                             \
+          "Percentage (0-100) of the heap size to use as minimum "          \
+          "young gen size.")                                                \
+                                                                            \
+  develop(uintx, G1DefaultMaxNewGenPercent, 50,                             \
+          "Percentage (0-100) of the heap size to use as maximum "          \
+          "young gen size.")
 
 G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG)