src/hotspot/share/gc/g1/g1_globals.hpp

rev 55404 : 8226197: Reducing G1?s CPU cost with simplified write post-barrier and disabling concurrent refinement
Summary: A prototype to add a mode for G1 to use a simplified write post-barrier. Guarded by new flag G1FastWriteBarrier.

@@ -243,10 +243,14 @@
                                                                             \
   product(uintx, G1MixedGCCountTarget, 8,                                   \
           "The target number of mixed GCs after a marking cycle.")          \
           range(0, max_uintx)                                               \
                                                                             \
+  product(bool, G1FastWriteBarrier, false,                                  \
+          "Use simplified write barrier that does not use per-thread "      \
+          "dirty card queue and concurrent remset refinement.")             \
+                                                                            \
   experimental(bool, G1PretouchAuxiliaryMemory, false,                      \
           "Pre-touch large auxiliary data structures used by the GC.")      \
                                                                             \
   experimental(bool, G1EagerReclaimHumongousObjects, true,                  \
           "Try to reclaim dead large objects at every young GC.")           \