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Chris Tate
b0c01dc341
A program's nursery trigger starts at 256 candidates and doubles, up to 4096, after each scheduled mature or full pass whose dead set held more mature and old objects than an eighth of what the nursery passes freed since the previous one; it halves after one that held less than a thirty-second of that. SCR_CYCLE_THRESHOLD and scr_cyc_set_nursery_threshold pin the trigger as before. The scheduled-age rule keeps counting collection points in the pinned or default trigger.