Looks there is a merge error in the slub tree. DEACTIVATE_TO_TAIL != 1. And this will cause performance regression. Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx> diff --git a/mm/slub.c b/mm/slub.c index 7d2a996..60e16c4 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1904,7 +1904,8 @@ static void unfreeze_partials(struct kmem_cache *s) if (l == M_PARTIAL) remove_partial(n, page); else - add_partial(n, page, 1); + add_partial(n, page, + DEACTIVATE_TO_TAIL); l = m; } -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>