From: Michal Hocko <mhocko@suse.cz>
To: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Michel Lespinasse <walken@google.com>, Tejun Heo <tj@kernel.org>,
Hugh Dickins <hughd@google.com>,
Roman Gushchin <klamm@yandex-team.ru>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH v2 0/4] memcg: Low-limit reclaim
Date: Tue, 3 Jun 2014 13:09:59 +0200 [thread overview]
Message-ID: <20140603110959.GE1321@dhcp22.suse.cz> (raw)
In-Reply-To: <xr93ioopyj1y.fsf@gthelen.mtv.corp.google.com>
On Wed 28-05-14 09:17:13, Greg Thelen wrote:
[...]
> My 2c... The following works for my use cases:
> 1) introduce memory.low_limit_in_bytes (default=0 thus no default change
> from older kernels)
> 2) interested users will set low_limit_in_bytes to non-zero value.
> Memory protected by low limit should be as migratable/reclaimable as
> mlock memory. If a zone full of mlock memory causes oom kills, then
> so should the low limit.
Would fallback mode in overcommit or the corner case situation break
your usecase?
--
Michal Hocko
SUSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@suse.cz>
To: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Michel Lespinasse <walken@google.com>, Tejun Heo <tj@kernel.org>,
Hugh Dickins <hughd@google.com>,
Roman Gushchin <klamm@yandex-team.ru>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH v2 0/4] memcg: Low-limit reclaim
Date: Tue, 3 Jun 2014 13:09:59 +0200 [thread overview]
Message-ID: <20140603110959.GE1321@dhcp22.suse.cz> (raw)
In-Reply-To: <xr93ioopyj1y.fsf@gthelen.mtv.corp.google.com>
On Wed 28-05-14 09:17:13, Greg Thelen wrote:
[...]
> My 2c... The following works for my use cases:
> 1) introduce memory.low_limit_in_bytes (default=0 thus no default change
> from older kernels)
> 2) interested users will set low_limit_in_bytes to non-zero value.
> Memory protected by low limit should be as migratable/reclaimable as
> mlock memory. If a zone full of mlock memory causes oom kills, then
> so should the low limit.
Would fallback mode in overcommit or the corner case situation break
your usecase?
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2014-06-03 11:10 UTC|newest]
Thread overview: 196+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-28 12:26 [PATCH v2 0/4] memcg: Low-limit reclaim Michal Hocko
2014-04-28 12:26 ` Michal Hocko
2014-04-28 12:26 ` [PATCH 1/4] memcg, mm: introduce lowlimit reclaim Michal Hocko
2014-04-28 12:26 ` Michal Hocko
2014-04-30 22:55 ` Johannes Weiner
2014-04-30 22:55 ` Johannes Weiner
2014-05-02 9:36 ` Michal Hocko
2014-05-02 9:36 ` Michal Hocko
2014-05-02 12:07 ` Michal Hocko
2014-05-02 12:07 ` Michal Hocko
2014-05-02 13:01 ` Johannes Weiner
2014-05-02 13:01 ` Johannes Weiner
2014-05-02 14:15 ` Michal Hocko
2014-05-02 14:15 ` Michal Hocko
2014-05-02 15:04 ` Johannes Weiner
2014-05-02 15:04 ` Johannes Weiner
2014-05-02 15:11 ` Michal Hocko
2014-05-02 15:11 ` Michal Hocko
2014-05-02 15:34 ` Johannes Weiner
2014-05-02 15:34 ` Johannes Weiner
2014-05-02 15:48 ` Michal Hocko
2014-05-02 15:48 ` Michal Hocko
2014-05-06 19:58 ` Michal Hocko
2014-05-06 19:58 ` Michal Hocko
2014-05-02 15:58 ` Johannes Weiner
2014-05-02 15:58 ` Johannes Weiner
2014-05-02 16:49 ` Michal Hocko
2014-05-02 16:49 ` Michal Hocko
2014-05-02 22:00 ` Johannes Weiner
2014-05-02 22:00 ` Johannes Weiner
2014-05-05 14:21 ` Michal Hocko
2014-05-05 14:21 ` Michal Hocko
2014-05-19 16:18 ` Michal Hocko
2014-05-19 16:18 ` Michal Hocko
2014-06-11 15:15 ` Johannes Weiner
2014-06-11 15:15 ` Johannes Weiner
2014-06-11 16:08 ` Michal Hocko
2014-06-11 16:08 ` Michal Hocko
2014-05-06 13:29 ` Johannes Weiner
2014-05-06 14:32 ` Michal Hocko
2014-05-06 14:32 ` Michal Hocko
2014-05-06 15:21 ` Johannes Weiner
2014-05-06 15:21 ` Johannes Weiner
2014-05-06 16:12 ` Michal Hocko
2014-05-06 16:12 ` Michal Hocko
2014-05-06 16:51 ` Johannes Weiner
2014-05-06 16:51 ` Johannes Weiner
2014-05-06 18:30 ` Michal Hocko
2014-05-06 18:30 ` Michal Hocko
2014-05-06 19:55 ` Johannes Weiner
2014-05-06 19:55 ` Johannes Weiner
2014-04-28 12:26 ` [PATCH 2/4] memcg: Allow setting low_limit Michal Hocko
2014-04-28 12:26 ` Michal Hocko
2014-04-28 12:26 ` [PATCH 3/4] memcg, doc: clarify global vs. limit reclaims Michal Hocko
2014-04-28 12:26 ` Michal Hocko
2014-04-30 23:03 ` Johannes Weiner
2014-04-30 23:03 ` Johannes Weiner
2014-05-02 9:43 ` Michal Hocko
2014-05-02 9:43 ` Michal Hocko
2014-05-06 19:56 ` Michal Hocko
2014-05-06 19:56 ` Michal Hocko
2014-04-28 12:26 ` [PATCH 4/4] memcg: Document memory.low_limit_in_bytes Michal Hocko
2014-04-28 12:26 ` Michal Hocko
2014-04-30 22:57 ` Johannes Weiner
2014-04-30 22:57 ` Johannes Weiner
2014-05-02 9:46 ` Michal Hocko
2014-05-02 9:46 ` Michal Hocko
2014-04-28 15:46 ` [PATCH v2 0/4] memcg: Low-limit reclaim Roman Gushchin
2014-04-28 15:46 ` Roman Gushchin
2014-04-29 7:42 ` Greg Thelen
2014-04-29 7:42 ` Greg Thelen
2014-04-29 10:50 ` Roman Gushchin
2014-04-29 10:50 ` Roman Gushchin
2014-04-29 12:54 ` Michal Hocko
2014-04-29 12:54 ` Michal Hocko
2014-04-30 21:52 ` Andrew Morton
2014-04-30 21:52 ` Andrew Morton
2014-04-30 22:49 ` Johannes Weiner
2014-04-30 22:49 ` Johannes Weiner
2014-05-02 12:03 ` Michal Hocko
2014-05-02 12:03 ` Michal Hocko
2014-04-30 21:59 ` Andrew Morton
2014-04-30 21:59 ` Andrew Morton
2014-05-02 11:22 ` Michal Hocko
2014-05-02 11:22 ` Michal Hocko
2014-05-28 12:10 ` Michal Hocko
2014-05-28 12:10 ` Michal Hocko
2014-05-28 13:49 ` Johannes Weiner
2014-05-28 13:49 ` Johannes Weiner
2014-05-28 14:21 ` Michal Hocko
2014-05-28 14:21 ` Michal Hocko
2014-05-28 15:28 ` Johannes Weiner
2014-05-28 15:28 ` Johannes Weiner
2014-05-28 15:54 ` Michal Hocko
2014-05-28 15:54 ` Michal Hocko
2014-05-28 16:33 ` Johannes Weiner
2014-05-28 16:33 ` Johannes Weiner
2014-06-03 11:07 ` Michal Hocko
2014-06-03 11:07 ` Michal Hocko
2014-06-03 14:22 ` Johannes Weiner
2014-06-03 14:22 ` Johannes Weiner
2014-06-04 14:46 ` Michal Hocko
2014-06-04 14:46 ` Michal Hocko
2014-06-04 15:44 ` Johannes Weiner
2014-06-04 15:44 ` Johannes Weiner
2014-06-04 19:18 ` Hugh Dickins
2014-06-04 19:18 ` Hugh Dickins
2014-06-04 21:45 ` Johannes Weiner
2014-06-04 21:45 ` Johannes Weiner
2014-06-05 14:51 ` Michal Hocko
2014-06-05 14:51 ` Michal Hocko
2014-06-05 16:10 ` Johannes Weiner
2014-06-05 16:10 ` Johannes Weiner
2014-06-05 16:43 ` Michal Hocko
2014-06-05 16:43 ` Michal Hocko
2014-06-05 18:23 ` Johannes Weiner
2014-06-05 18:23 ` Johannes Weiner
2014-06-06 14:44 ` Michal Hocko
2014-06-06 14:44 ` Michal Hocko
2014-06-06 14:46 ` [PATCH 1/2] mm, memcg: allow OOM if no memcg is eligible during direct reclaim Michal Hocko
2014-06-06 14:46 ` Michal Hocko
2014-06-06 14:46 ` [PATCH 2/2] memcg: Allow hard guarantee mode for low limit reclaim Michal Hocko
2014-06-06 14:46 ` Michal Hocko
2014-06-06 15:29 ` Tejun Heo
2014-06-06 15:29 ` Tejun Heo
2014-06-06 15:34 ` Tejun Heo
2014-06-06 15:34 ` Tejun Heo
2014-06-09 8:30 ` Michal Hocko
2014-06-09 8:30 ` Michal Hocko
2014-06-09 13:54 ` Tejun Heo
2014-06-09 13:54 ` Tejun Heo
2014-06-09 22:52 ` Greg Thelen
2014-06-09 22:52 ` Greg Thelen
2014-06-10 16:57 ` Johannes Weiner
2014-06-10 16:57 ` Johannes Weiner
2014-06-10 22:16 ` Greg Thelen
2014-06-10 22:16 ` Greg Thelen
2014-06-11 7:57 ` Michal Hocko
2014-06-11 7:57 ` Michal Hocko
2014-06-11 8:00 ` [PATCH 1/2] mm, memcg: allow OOM if no memcg is eligible during direct reclaim Michal Hocko
2014-06-11 8:00 ` Michal Hocko
2014-06-11 8:00 ` [PATCH 2/2] memcg: Allow guarantee reclaim Michal Hocko
2014-06-11 8:00 ` Michal Hocko
2014-06-11 15:36 ` Johannes Weiner
2014-06-11 15:36 ` Johannes Weiner
2014-06-12 13:22 ` Michal Hocko
2014-06-12 13:22 ` Michal Hocko
2014-06-12 13:56 ` Johannes Weiner
2014-06-12 13:56 ` Johannes Weiner
2014-06-12 14:22 ` Michal Hocko
2014-06-12 14:22 ` Michal Hocko
2014-06-12 16:17 ` Tejun Heo
2014-06-12 16:17 ` Tejun Heo
2014-06-16 12:59 ` Michal Hocko
2014-06-16 12:59 ` Michal Hocko
2014-06-16 13:57 ` Tejun Heo
2014-06-16 13:57 ` Tejun Heo
2014-06-16 14:04 ` Michal Hocko
2014-06-16 14:04 ` Michal Hocko
2014-06-16 14:12 ` Tejun Heo
2014-06-16 14:12 ` Tejun Heo
2014-06-16 14:29 ` Michal Hocko
2014-06-16 14:29 ` Michal Hocko
2014-06-16 14:40 ` Tejun Heo
2014-06-16 14:40 ` Tejun Heo
2014-06-12 16:51 ` Johannes Weiner
2014-06-12 16:51 ` Johannes Weiner
2014-06-16 13:22 ` Michal Hocko
2014-06-16 13:22 ` Michal Hocko
2014-06-11 15:20 ` [PATCH 1/2] mm, memcg: allow OOM if no memcg is eligible during direct reclaim Johannes Weiner
2014-06-11 15:20 ` Johannes Weiner
2014-06-11 16:14 ` Michal Hocko
2014-06-11 16:14 ` Michal Hocko
2014-06-11 12:31 ` [PATCH 2/2] memcg: Allow hard guarantee mode for low limit reclaim Tejun Heo
2014-06-11 12:31 ` Tejun Heo
2014-06-11 14:11 ` Michal Hocko
2014-06-11 14:11 ` Michal Hocko
2014-06-11 15:34 ` Tejun Heo
2014-06-11 15:34 ` Tejun Heo
2014-06-05 19:36 ` [PATCH v2 0/4] memcg: Low-limit reclaim Tejun Heo
2014-06-05 19:36 ` Tejun Heo
2014-06-05 14:32 ` Michal Hocko
2014-06-05 14:32 ` Michal Hocko
2014-06-05 15:43 ` Johannes Weiner
2014-06-05 15:43 ` Johannes Weiner
2014-06-05 16:09 ` Michal Hocko
2014-06-05 16:09 ` Michal Hocko
2014-06-05 16:46 ` Johannes Weiner
2014-06-05 16:46 ` Johannes Weiner
2014-05-28 16:17 ` Greg Thelen
2014-05-28 16:17 ` Greg Thelen
2014-06-03 11:09 ` Michal Hocko [this message]
2014-06-03 11:09 ` Michal Hocko
2014-06-03 14:01 ` Greg Thelen
2014-06-03 14:44 ` Michal Hocko
2014-06-03 14:44 ` Michal Hocko
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