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src/hotspot/share/gc/g1/g1Policy.hpp

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rev 52675 : 8213890: Implementation of JEP 344: Abortable Mixed Collections for G1
Reviewed-by:
Contributed-by: erik.helin@oracle.com, stefan.johansson@oracle.com
rev 52676 : imported patch AMGC-impl
rev 52677 : imported patch AMGC-tsch-rev1
rev 52680 : imported patch AMGC-tsch-rev2

@@ -399,10 +399,18 @@
 
   AgeTable _survivors_age_table;
 
   size_t desired_survivor_size() const;
 public:
+  // Fraction used when predicting how many optional regions to include in
+  // the CSet. This fraction of the available time is used for optional regions,
+  // the rest is used to add old regions to the normal CSet.
+  double optional_prediction_fraction() { return 0.2; }
+  // Fraction used when evacuating the optional regions. This fraction of the
+  // remaining time is used to choose what regions to include in the evacuation.
+  double optional_evacuation_fraction() { return 0.75; }
+
   uint tenuring_threshold() const { return _tenuring_threshold; }
 
   uint max_survivor_regions() {
     return _max_survivor_regions;
   }
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