From: Johannes Weiner <hannes@cmpxchg.org>
To: Tim Hockin <thockin@hockin.org>
Cc: Michal Hocko <mhocko@suse.cz>, Li Zefan <lizefan@huawei.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
linux-mm@kvack.org, Rik van Riel <riel@redhat.com>,
Pekka Enberg <penberg@kernel.org>,
cgroups@vger.kernel.org, Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [patch 7/8] mm, memcg: allow processes handling oom notifications to access reserves
Date: Sat, 7 Dec 2013 12:40:39 -0500 [thread overview]
Message-ID: <20131207174039.GH21724@cmpxchg.org> (raw)
In-Reply-To: <CAAAKZwsh3erB7PyG6FnvJRgrZhf2hDQCZDx3rMM7NdOdYNCzJw@mail.gmail.com>
Hello Tim!
On Sat, Dec 07, 2013 at 08:38:20AM -0800, Tim Hockin wrote:
> We actually started with kernel patches all h these lines - per-memcg
> scores and all of our crazy policy requirements.
>
> It turns out that changing policies is hard.
>
> When David offered the opportunity to manage it all in user space it
> sounded like a great idea.
>
> If this can be made to work as a high prio daemon with access to reserves,
> we would like it.
We can not talk solutions if you won't describe the problem. It's
understandable that you can't talk about internal details, but it's
possible to describe a technical problem in a portable fashion such
that people can understand and evaluate it without knowing your whole
application. Companies do this all the time.
"The way our blackbox works makes it really hard to hook it up to the
Linux kernel" is not a very convincing technical argument to change
the Linux kernel.
Thanks!
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next prev parent reply other threads:[~2013-12-07 17:41 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 13:14 user defined OOM policies Michal Hocko
2013-11-19 13:40 ` Michal Hocko
2013-11-20 8:02 ` David Rientjes
2013-11-20 15:22 ` Michal Hocko
2013-11-20 17:14 ` Luigi Semenzato
2013-11-21 3:36 ` David Rientjes
2013-11-21 7:03 ` Luigi Semenzato
2013-11-22 18:08 ` Johannes Weiner
2013-11-28 11:36 ` Michal Hocko
2013-11-26 1:29 ` David Rientjes
2013-11-28 11:42 ` Michal Hocko
2013-12-02 23:09 ` David Rientjes
2013-11-21 3:33 ` David Rientjes
2013-11-28 11:54 ` Michal Hocko
2013-12-02 23:07 ` David Rientjes
2013-12-04 5:19 ` [patch 1/8] fork: collapse copy_flags into copy_process David Rientjes
2013-12-04 5:19 ` [patch 2/8] mm, mempolicy: rename slab_node for clarity David Rientjes
2013-12-04 15:21 ` Christoph Lameter
2013-12-04 5:20 ` [patch 3/8] mm, mempolicy: remove per-process flag David Rientjes
2013-12-04 15:24 ` Christoph Lameter
2013-12-05 0:53 ` David Rientjes
2013-12-05 19:05 ` Christoph Lameter
2013-12-05 23:53 ` David Rientjes
2013-12-06 14:46 ` Christoph Lameter
2013-12-04 5:20 ` [patch 4/8] mm, memcg: add tunable for oom reserves David Rientjes
2013-12-04 5:20 ` [patch 5/8] res_counter: remove interface for locked charging and uncharging David Rientjes
2013-12-04 5:20 ` [patch 6/8] res_counter: add interface for maximum nofail charge David Rientjes
2013-12-04 5:20 ` [patch 7/8] mm, memcg: allow processes handling oom notifications to access reserves David Rientjes
2013-12-04 5:45 ` Johannes Weiner
2013-12-05 1:49 ` David Rientjes
2013-12-05 2:50 ` Tejun Heo
2013-12-05 23:49 ` David Rientjes
2013-12-06 17:34 ` Johannes Weiner
2013-12-07 16:38 ` Tim Hockin
2013-12-07 17:40 ` Johannes Weiner [this message]
2013-12-07 18:12 ` Tim Hockin
2013-12-07 19:06 ` Johannes Weiner
2013-12-07 21:04 ` Tim Hockin
2013-12-06 19:01 ` Tejun Heo
2013-12-09 20:10 ` David Rientjes
2013-12-09 22:37 ` Johannes Weiner
2013-12-10 21:50 ` Tejun Heo
2013-12-10 23:55 ` David Rientjes
2013-12-11 9:49 ` Mel Gorman
2013-12-11 12:42 ` Tejun Heo
2013-12-12 5:37 ` Tim Hockin
2013-12-12 14:21 ` Tejun Heo
2013-12-12 16:32 ` Michal Hocko
2013-12-12 16:37 ` Tejun Heo
2013-12-12 18:42 ` Tim Hockin
2013-12-12 19:23 ` Tejun Heo
2013-12-13 0:23 ` Tim Hockin
2013-12-13 11:47 ` Tejun Heo
2013-12-04 5:20 ` [patch 8/8] mm, memcg: add memcg oom reserve documentation David Rientjes
2013-11-20 17:25 ` user defined OOM policies Vladimir Murzin
2013-11-20 17:21 ` Vladimir Murzin
2013-11-20 17:33 ` Michal Hocko
2013-11-21 3:38 ` David Rientjes
2013-11-21 17:13 ` Michal Hocko
2013-11-26 1:36 ` David Rientjes
2013-11-22 7:28 ` Vladimir Murzin
2013-11-22 13:18 ` Michal Hocko
2013-11-20 7:50 ` David Rientjes
2013-11-22 0:19 ` Jörn Engel
2013-11-26 1:31 ` David Rientjes
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