2011/6/3 Ying Han <yinghan@xxxxxxxxxx>: > On Thu, Jun 2, 2011 at 6:27 AM, Hiroyuki Kamezawa > <kamezawa.hiroyuki@xxxxxxxxx> wrote: >> 2011/6/1 Johannes Weiner <hannes@xxxxxxxxxxx>: >>> Once the per-memcg lru lists are exclusive, the unevictable page >>> rescue scanner can no longer work on the global zone lru lists. >>> >>> This converts it to go through all memcgs and scan their respective >>> unevictable lists instead. >>> >>> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> >> >> Hm, isn't it better to have only one GLOBAL LRU for unevictable pages ? >> memcg only needs counter for unevictable pages and LRU is not necessary >> to be per memcg because we don't reclaim it... > > Hmm. Are we suggesting to keep one un-evictable LRU list for all > memcgs? So we will have > exclusive lru only for file and anon. If so, we are not done to make > all the lru list being exclusive > which is critical later to improve the zone->lru_lock contention > across the memcgs > considering lrulock, yes, maybe you're right. > Sorry If i misinterpret the suggestion here > My concern is I don't know for what purpose this function is used .. Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx 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>