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diff src/share/vm/gc_implementation/g1/g1_globals.hpp @ 23024:cbc7c4c9e11c

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8048179: Early reclaim of large objects that are referenced by a few objects Summary: Push the remembered sets of large objects with few referenced into the dirty card queue at the beginning of the evacuation so that they may end up with zero remembered set entries at the end of the collection, and are potentially reclaimed. Also improve timing measurements of the early reclaim mechanism, and shorten flag names. Reviewed-by: brutisso, jmasa, dfazunen
author tschatzl
date Wed, 07 Jan 2015 15:15:37 +0100
parents ad32e85474ff
children dd9cc155639c
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--- a/src/share/vm/gc_implementation/g1/g1_globals.hpp	Fri May 15 06:47:56 2015 +0000
+++ b/src/share/vm/gc_implementation/g1/g1_globals.hpp	Wed Jan 07 15:15:37 2015 +0100
@@ -274,10 +274,14 @@
   product(uintx, G1MixedGCCountTarget, 8,                                   \
           "The target number of mixed GCs after a marking cycle.")          \
                                                                             \
-  experimental(bool, G1ReclaimDeadHumongousObjectsAtYoungGC, true,          \
+  experimental(bool, G1EagerReclaimHumongousObjects, true,                  \
           "Try to reclaim dead large objects at every young GC.")           \
                                                                             \
-  experimental(bool, G1TraceReclaimDeadHumongousObjectsAtYoungGC, false,    \
+  experimental(bool, G1EagerReclaimHumongousObjectsWithStaleRefs, true,     \
+          "Try to reclaim dead large objects that have a few stale "        \
+          "references at every young GC.")                                  \
+                                                                            \
+  experimental(bool, G1TraceEagerReclaimHumongousObjects, false,            \
           "Print some information about large object liveness "             \
           "at every young GC.")                                             \
                                                                             \