+ min_alloc = stg_max((RtsFlags.GcFlags.pcFreeHeap * max) / 200,
+ RtsFlags.GcFlags.minAllocAreaSize);
+
+ // Auto-enable compaction when the residency reaches a
+ // certain percentage of the maximum heap size (default: 30%).
+ if (RtsFlags.GcFlags.compact ||
+ (max > 0 &&
+ oldest_gen->steps[0].n_blocks >
+ (RtsFlags.GcFlags.compactThreshold * max) / 100)) {
+ oldest_gen->steps[0].is_compacted = 1;
+// fprintf(stderr,"compaction: on\n", live);
+ } else {
+ oldest_gen->steps[0].is_compacted = 0;
+// fprintf(stderr,"compaction: off\n", live);
+ }