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+Thu Mar 31 16:43:02 2016 Koichi Sasada <ko1@atdot.net>
+
+ * gc.c: add GC parameters to configure the following values:
+ * RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO:
+ allocate additional pages when free slots is lower than
+ the value (total_slots * (this ratio)).
+ * RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO:
+ allow to free pages when free slots is greater thatn
+ the value (total_slots * (this ratio)).
+
+ Before this change, these values are hard coded.
+
+ * gc.c (ruby_gc_params_t): ditto.
+
+ * gc.c (ruby_gc_set_params): ditto.
+
Thu Mar 31 15:59:17 2016 Koichi Sasada <ko1@atdot.net>
* gc.c (gc_verify_heap_page): check the number of zombies.