From: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
To: Michel Lespinasse <walken-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Balbir Singh
<bsingharora-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
KAMEZAWA Hiroyuki
<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
Hugh Dickins <hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Ying Han <yinghan-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>,
Greg Thelen <gthelen-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Subject: Re: memcg: softlimit on internal nodes
Date: Tue, 23 Apr 2013 14:51:01 +0200 [thread overview]
Message-ID: <20130423125101.GE8001@dhcp22.suse.cz> (raw)
In-Reply-To: <CANN689Hz5A+iMM3T76-8RCh8YDnoGrYBvtjL_+cXaYRR0OkGRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Tue 23-04-13 02:58:19, Michel Lespinasse wrote:
[...]
> However, your proposal takes that weak guarantee away as soon as one
> tries to use cgroup hierarchies with it, because it reclaims from
> every child cgroup as soon as the parent hits its soft limit.
Reading this again I am really getting confused. The primary objection
used to be that under-soft-limit inter-node subtree shouldn't be
reclaimed although there are children over their soft limits. Now we
have moved to over-limit inder-node shouldn't hammer its subtree?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2013-04-23 12:51 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-20 0:26 memcg: softlimit on internal nodes Tejun Heo
[not found] ` <20130420002620.GA17179-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-04-20 0:42 ` Tejun Heo
2013-04-20 3:35 ` Greg Thelen
2013-04-21 1:53 ` Tejun Heo
2013-04-20 3:16 ` Michal Hocko
2013-04-21 2:23 ` Tejun Heo
[not found] ` <20130421022321.GE19097-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-04-21 8:55 ` Michel Lespinasse
[not found] ` <CANN689GuN_5QdgPBjr7h6paVmPeCvLHYfLWNLsJMWib9V9G_Fw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-22 4:24 ` Tejun Heo
[not found] ` <20130422042445.GA25089-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-04-22 7:14 ` Michel Lespinasse
2013-04-22 14:48 ` Tejun Heo
2013-04-22 15:37 ` Michal Hocko
2013-04-22 15:46 ` Tejun Heo
[not found] ` <20130422154620.GB12543-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-04-22 15:54 ` Michal Hocko
[not found] ` <20130422155454.GH18286-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-22 16:01 ` Tejun Heo
2013-04-23 9:58 ` Michel Lespinasse
2013-04-23 10:17 ` Glauber Costa
[not found] ` <51765FB2.3070506-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2013-04-23 11:40 ` Michal Hocko
[not found] ` <20130423114020.GC8001-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-23 11:54 ` Glauber Costa
2013-04-23 12:51 ` Michel Lespinasse
[not found] ` <CANN689FaGBi+LmdoSGBf3D9HmLD8Emma1_M3T1dARSD6=75B0w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-23 13:06 ` Michal Hocko
[not found] ` <20130423130627.GG8001-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-23 13:13 ` Glauber Costa
2013-04-23 13:28 ` Michal Hocko
[not found] ` <CANN689Hz5A+iMM3T76-8RCh8YDnoGrYBvtjL_+cXaYRR0OkGRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-23 11:32 ` Michal Hocko
[not found] ` <20130423113216.GB8001-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-23 12:45 ` Michel Lespinasse
[not found] ` <CANN689G47EFiSpH-d=yQSiUxPcHXveBi_aCL=o3yoHSa8K7LbQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-23 12:59 ` Michal Hocko
2013-04-23 12:51 ` Michal Hocko [this message]
2013-04-21 12:46 ` Michal Hocko
2013-04-22 4:39 ` Tejun Heo
2013-04-22 15:19 ` Michal Hocko
[not found] ` <20130422151908.GF18286-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-22 15:57 ` Tejun Heo
[not found] ` <20130422155703.GC12543-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-04-22 15:57 ` Tejun Heo
2013-04-22 16:20 ` Michal Hocko
[not found] ` <20130422162012.GI18286-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-22 18:30 ` Tejun Heo
2013-04-23 9:33 ` [RFC v2 0/4] soft limit rework Michal Hocko
[not found] ` <1366709639-10240-1-git-send-email-mhocko-AlSwsSmVLrQ@public.gmane.org>
2013-04-23 9:33 ` [RFC v2 1/4] memcg: integrate soft reclaim tighter with zone shrinking code Michal Hocko
2013-04-23 9:33 ` [RFC v2 2/4] memcg: Get rid of soft-limit tree infrastructure Michal Hocko
2013-04-23 9:33 ` [RFC v2 3/4] vmscan, memcg: Do softlimit reclaim also for targeted reclaim Michal Hocko
2013-04-23 9:33 ` [RFC v2 4/4] memcg: Ignore soft limit until it is explicitly specified Michal Hocko
[not found] ` <20130422183020.GF12543-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-04-23 9:29 ` memcg: softlimit on internal nodes Michal Hocko
2013-04-23 17:09 ` Tejun Heo
2013-04-26 11:51 ` Michal Hocko
[not found] ` <20130426115120.GG31157-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-04-26 18:37 ` Tejun Heo
[not found] ` <20130426183741.GA25940-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-04-29 15:27 ` Michal Hocko
2013-04-24 21:45 ` Johannes Weiner
2013-04-25 0:33 ` Tejun Heo
[not found] ` <20130425003335.GA32353-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-04-29 18:39 ` Johannes Weiner
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