#define SGEN_MIN_ALLOWANCE_NURSERY_SIZE_RATIO 1.0
#define SGEN_MAX_ALLOWANCE_NURSERY_SIZE_RATIO 10.0
+/*
+ * How much more we allow the heap to grow before triggering another major collection
+ */
+#define SGEN_DEFAULT_ALLOWANCE_HEAP_SIZE_RATIO 0.33
+
+/*
+ * How much more we allow the heap to grow, relative to the allowance, while doing
+ * a concurrent collection, before forcing its finish.
+ */
+#define SGEN_DEFAULT_CONCURRENT_HEAP_ALLOWANCE_RATIO 0.25
+
/*
* Default ratio of memory we want to release in a major collection in relation to the the current heap size.
*