Messages in this thread | | | Date | Fri, 13 May 2011 13:02:27 +0200 | From | Michal Hocko <> | Subject | Re: [rfc patch 3/6] mm: memcg-aware global reclaim |
| |
On Fri 13-05-11 12:28:58, Johannes Weiner wrote: > On Fri, May 13, 2011 at 11:53:08AM +0200, Michal Hocko wrote: > > On Thu 12-05-11 16:53:55, Johannes Weiner wrote: > > > A page charged to a memcg is linked to a lru list specific to that > > > memcg. At the same time, traditional global reclaim is obvlivious to > > > memcgs, and all the pages are also linked to a global per-zone list. > > > > > > This patch changes traditional global reclaim to iterate over all > > > existing memcgs, so that it no longer relies on the global list being > > > present. > > > > At LSF we have discussed that we should keep a list of over-(soft)limit > > cgroups in a list which would be the first target for reclaiming (in > > round-robin fashion). If we are note able to reclaim enough from those > > (the list becomes empty) we should fallback to the all groups reclaim > > (what you did in this patchset). > > This would be on top or instead of 6/6. This, 3/6, is indepent of > soft limit reclaim. It is mainly in preparation to remove the global > LRU.
OK.
-- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic
| |