From: Johannes Weiner <hannes@cmpxchg.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Ying Han <yinghan@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
Minchan Kim <minchan.kim@gmail.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [rfc patch 3/6] mm: memcg-aware global reclaim
Date: Fri, 13 May 2011 12:28:58 +0200 [thread overview]
Message-ID: <20110513102858.GO16531@cmpxchg.org> (raw)
In-Reply-To: <20110513095308.GD25304@tiehlicka.suse.cz>
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.
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Ying Han <yinghan@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
Minchan Kim <minchan.kim@gmail.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [rfc patch 3/6] mm: memcg-aware global reclaim
Date: Fri, 13 May 2011 12:28:58 +0200 [thread overview]
Message-ID: <20110513102858.GO16531@cmpxchg.org> (raw)
In-Reply-To: <20110513095308.GD25304@tiehlicka.suse.cz>
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.
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next prev parent reply other threads:[~2011-05-13 10:29 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-12 14:53 [rfc patch 0/6] mm: memcg naturalization Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 14:53 ` [rfc patch 1/6] memcg: remove unused retry signal from reclaim Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 15:02 ` Rik van Riel
2011-05-12 15:02 ` Rik van Riel
2011-05-12 17:22 ` Ying Han
2011-05-12 23:44 ` KAMEZAWA Hiroyuki
2011-05-12 23:44 ` KAMEZAWA Hiroyuki
2011-05-13 9:23 ` Michal Hocko
2011-05-13 9:23 ` Michal Hocko
2011-05-12 14:53 ` [rfc patch 2/6] vmscan: make distinction between memcg reclaim and LRU list selection Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 15:33 ` Rik van Riel
2011-05-12 15:33 ` Rik van Riel
2011-05-12 16:03 ` Johannes Weiner
2011-05-12 16:03 ` Johannes Weiner
2011-05-17 6:38 ` Ying Han
2011-05-17 6:38 ` Ying Han
2011-05-17 8:25 ` Johannes Weiner
2011-05-17 8:25 ` Johannes Weiner
2011-05-12 23:50 ` KAMEZAWA Hiroyuki
2011-05-12 23:50 ` KAMEZAWA Hiroyuki
2011-05-13 6:58 ` Johannes Weiner
2011-05-13 6:58 ` Johannes Weiner
2011-05-16 22:36 ` Andrew Morton
2011-05-16 22:36 ` Andrew Morton
2011-05-12 14:53 ` [rfc patch 3/6] mm: memcg-aware global reclaim Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 16:04 ` Rik van Riel
2011-05-12 16:04 ` Rik van Riel
2011-05-12 19:19 ` Ying Han
2011-05-13 7:08 ` Johannes Weiner
2011-05-13 7:08 ` Johannes Weiner
2011-05-13 0:04 ` KAMEZAWA Hiroyuki
2011-05-13 0:04 ` KAMEZAWA Hiroyuki
2011-05-13 7:18 ` Johannes Weiner
2011-05-13 7:18 ` Johannes Weiner
2011-05-13 0:40 ` KAMEZAWA Hiroyuki
2011-05-13 0:40 ` KAMEZAWA Hiroyuki
2011-05-13 6:54 ` Johannes Weiner
2011-05-13 6:54 ` Johannes Weiner
2011-05-13 9:53 ` Michal Hocko
2011-05-13 9:53 ` Michal Hocko
2011-05-13 10:28 ` Johannes Weiner [this message]
2011-05-13 10:28 ` Johannes Weiner
2011-05-13 11:02 ` Michal Hocko
2011-05-13 11:02 ` Michal Hocko
2011-05-12 14:53 ` [rfc patch 4/6] memcg: reclaim statistics Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 19:33 ` Ying Han
2011-05-16 23:10 ` Johannes Weiner
2011-05-16 23:10 ` Johannes Weiner
2011-05-17 0:20 ` Ying Han
2011-05-17 7:42 ` Johannes Weiner
2011-05-17 7:42 ` Johannes Weiner
2011-05-17 13:55 ` Rik van Riel
2011-05-17 13:55 ` Rik van Riel
2011-05-12 14:53 ` [rfc patch 5/6] memcg: remove global LRU list Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-13 9:53 ` Michal Hocko
2011-05-13 9:53 ` Michal Hocko
2011-05-13 10:36 ` Johannes Weiner
2011-05-13 10:36 ` Johannes Weiner
2011-05-13 11:01 ` Michal Hocko
2011-05-13 11:01 ` Michal Hocko
2011-05-12 14:53 ` [rfc patch 6/6] memcg: rework soft limit reclaim Johannes Weiner
2011-05-12 14:53 ` Johannes Weiner
2011-05-12 18:41 ` Ying Han
2011-05-12 18:41 ` Ying Han
2011-05-12 18:53 ` [rfc patch 0/6] mm: memcg naturalization Ying Han
2011-05-13 7:20 ` Johannes Weiner
2011-05-13 7:20 ` Johannes Weiner
2011-05-17 0:53 ` Ying Han
2011-05-17 8:11 ` Johannes Weiner
2011-05-17 8:11 ` Johannes Weiner
2011-05-17 14:45 ` Ying Han
2011-05-16 10:30 ` Balbir Singh
2011-05-16 10:30 ` Balbir Singh
2011-05-16 10:57 ` Johannes Weiner
2011-05-16 10:57 ` Johannes Weiner
2011-05-17 6:32 ` Balbir Singh
2011-05-17 6:32 ` Balbir Singh
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