From: Kairui Song With a fixed number to reclaim calculated at the beginning, making each following step smaller should reduce the lock contention and avoid over-aggressive reclaim of folios, as it will abort earlier when the number of folios to be reclaimed is reached. Signed-off-by: Kairui Song --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 4f4548ff3a17..2ff1609ff4de 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5007,7 +5007,7 @@ static bool try_to_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc) break; } - nr_batch = min(nr_to_scan, MAX_LRU_BATCH); + nr_batch = min(nr_to_scan, MIN_LRU_BATCH); delta = evict_folios(nr_batch, lruvec, sc, swappiness); if (!delta) break; -- 2.53.0