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 Sorry If i misinterpret the suggestion here --Ying > 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>