From: Johannes Weiner <hannes@cmpxchg.org>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>,
David Miller <davem@davemloft.net>,
akpm@linux-foundation.org, vdavydov@virtuozzo.com, tj@kernel.org,
netdev@vger.kernel.org, linux-mm@kvack.org,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/8] mm: memcontrol: account socket memory on unified hierarchy
Date: Thu, 12 Nov 2015 14:12:20 -0500 [thread overview]
Message-ID: <20151112191220.GA25750@cmpxchg.org> (raw)
In-Reply-To: <20151112183620.GC14880@techsingularity.net>
On Thu, Nov 12, 2015 at 06:36:20PM +0000, Mel Gorman wrote:
> Bottom line, there is legimate confusion over whether cgroup controllers
> are going to be enabled by default or not in the future. If they are
> enabled by default, there is a non-zero cost to that and a change in
> semantics that people may or may not be surprised by.
Thanks for elaborating, Mel.
My understanding is that this is a plain bug. I don't think anybody
wants to put costs without benefits on their users.
But I'll keep an eye on these reports, and I'll work with the systemd
people should issues with the kernel interface materialize that would
force them to enable resource control prematurely.
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>,
David Miller <davem@davemloft.net>,
akpm@linux-foundation.org, vdavydov@virtuozzo.com, tj@kernel.org,
netdev@vger.kernel.org, linux-mm@kvack.org,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/8] mm: memcontrol: account socket memory on unified hierarchy
Date: Thu, 12 Nov 2015 14:12:20 -0500 [thread overview]
Message-ID: <20151112191220.GA25750@cmpxchg.org> (raw)
In-Reply-To: <20151112183620.GC14880@techsingularity.net>
On Thu, Nov 12, 2015 at 06:36:20PM +0000, Mel Gorman wrote:
> Bottom line, there is legimate confusion over whether cgroup controllers
> are going to be enabled by default or not in the future. If they are
> enabled by default, there is a non-zero cost to that and a change in
> semantics that people may or may not be surprised by.
Thanks for elaborating, Mel.
My understanding is that this is a plain bug. I don't think anybody
wants to put costs without benefits on their users.
But I'll keep an eye on these reports, and I'll work with the systemd
people should issues with the kernel interface materialize that would
force them to enable resource control prematurely.
--
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next prev parent reply other threads:[~2015-11-12 19:12 UTC|newest]
Thread overview: 156+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-22 4:21 [PATCH 0/8] mm: memcontrol: account socket memory in unified hierarchy Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-22 4:21 ` [PATCH 1/8] mm: page_counter: let page_counter_try_charge() return bool Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-23 11:31 ` Michal Hocko
2015-10-23 11:31 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 2/8] mm: memcontrol: export root_mem_cgroup Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-23 11:32 ` Michal Hocko
2015-10-23 11:32 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 3/8] net: consolidate memcg socket buffer tracking and accounting Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-22 18:46 ` Vladimir Davydov
2015-10-22 18:46 ` Vladimir Davydov
2015-10-22 18:46 ` Vladimir Davydov
2015-10-22 19:09 ` Johannes Weiner
2015-10-22 19:09 ` Johannes Weiner
2015-10-23 13:42 ` Vladimir Davydov
2015-10-23 13:42 ` Vladimir Davydov
2015-10-23 13:42 ` Vladimir Davydov
2015-10-23 12:38 ` Michal Hocko
2015-10-23 12:38 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 4/8] mm: memcontrol: prepare for unified hierarchy socket accounting Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-23 12:39 ` Michal Hocko
2015-10-23 12:39 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 5/8] mm: memcontrol: account socket memory on unified hierarchy Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-22 18:47 ` Vladimir Davydov
2015-10-22 18:47 ` Vladimir Davydov
2015-10-22 18:47 ` Vladimir Davydov
2015-10-23 13:19 ` Michal Hocko
2015-10-23 13:19 ` Michal Hocko
2015-10-23 13:19 ` Michal Hocko
2015-10-23 13:59 ` David Miller
2015-10-23 13:59 ` David Miller
2015-10-23 13:59 ` David Miller
2015-10-26 16:56 ` Johannes Weiner
2015-10-26 16:56 ` Johannes Weiner
2015-10-27 12:26 ` Michal Hocko
2015-10-27 12:26 ` Michal Hocko
2015-10-27 13:49 ` David Miller
2015-10-27 13:49 ` David Miller
2015-10-27 13:49 ` David Miller
2015-10-27 15:41 ` Johannes Weiner
2015-10-27 15:41 ` Johannes Weiner
2015-10-27 15:41 ` Johannes Weiner
2015-10-27 16:15 ` Michal Hocko
2015-10-27 16:15 ` Michal Hocko
2015-10-27 16:42 ` Johannes Weiner
2015-10-27 16:42 ` Johannes Weiner
2015-10-28 0:45 ` David Miller
2015-10-28 0:45 ` David Miller
2015-10-28 0:45 ` David Miller
2015-10-28 3:05 ` Johannes Weiner
2015-10-28 3:05 ` Johannes Weiner
2015-10-29 15:25 ` Michal Hocko
2015-10-29 15:25 ` Michal Hocko
2015-10-29 16:10 ` Johannes Weiner
2015-10-29 16:10 ` Johannes Weiner
2015-10-29 16:10 ` Johannes Weiner
2015-11-04 10:42 ` Michal Hocko
2015-11-04 10:42 ` Michal Hocko
2015-11-04 19:50 ` Johannes Weiner
2015-11-04 19:50 ` Johannes Weiner
2015-11-04 19:50 ` Johannes Weiner
2015-11-05 14:40 ` Michal Hocko
2015-11-05 14:40 ` Michal Hocko
2015-11-05 16:16 ` David Miller
2015-11-05 16:16 ` David Miller
2015-11-05 16:28 ` Michal Hocko
2015-11-05 16:28 ` Michal Hocko
2015-11-05 16:28 ` Michal Hocko
2015-11-05 16:30 ` David Miller
2015-11-05 16:30 ` David Miller
2015-11-05 22:32 ` Johannes Weiner
2015-11-05 22:32 ` Johannes Weiner
2015-11-05 22:32 ` Johannes Weiner
2015-11-06 12:51 ` Michal Hocko
2015-11-06 12:51 ` Michal Hocko
2015-11-05 20:55 ` Johannes Weiner
2015-11-05 20:55 ` Johannes Weiner
2015-11-05 22:52 ` Johannes Weiner
2015-11-05 22:52 ` Johannes Weiner
2015-11-05 22:52 ` Johannes Weiner
2015-11-06 10:57 ` Michal Hocko
2015-11-06 10:57 ` Michal Hocko
2015-11-06 16:19 ` Johannes Weiner
2015-11-06 16:19 ` Johannes Weiner
2015-11-06 16:46 ` Michal Hocko
2015-11-06 16:46 ` Michal Hocko
2015-11-06 16:46 ` Michal Hocko
2015-11-06 17:45 ` Johannes Weiner
2015-11-06 17:45 ` Johannes Weiner
2015-11-06 17:45 ` Johannes Weiner
2015-11-07 3:45 ` David Miller
2015-11-07 3:45 ` David Miller
2015-11-12 18:36 ` Mel Gorman
2015-11-12 18:36 ` Mel Gorman
2015-11-12 18:36 ` Mel Gorman
2015-11-12 19:12 ` Johannes Weiner [this message]
2015-11-12 19:12 ` Johannes Weiner
2015-11-06 9:05 ` Vladimir Davydov
2015-11-06 9:05 ` Vladimir Davydov
2015-11-06 9:05 ` Vladimir Davydov
2015-11-06 9:05 ` Vladimir Davydov
2015-11-06 13:29 ` Michal Hocko
2015-11-06 13:29 ` Michal Hocko
2015-11-06 16:35 ` Johannes Weiner
2015-11-06 16:35 ` Johannes Weiner
2015-11-06 13:21 ` Michal Hocko
2015-11-06 13:21 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 6/8] mm: vmscan: simplify memcg vs. global shrinker invocation Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-23 13:26 ` Michal Hocko
2015-10-23 13:26 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 7/8] mm: vmscan: report vmpressure at the level of reclaim activity Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-22 18:48 ` Vladimir Davydov
2015-10-22 18:48 ` Vladimir Davydov
2015-10-22 18:48 ` Vladimir Davydov
2015-10-22 18:48 ` Vladimir Davydov
2015-10-23 13:49 ` Michal Hocko
2015-10-23 13:49 ` Michal Hocko
2015-10-23 13:49 ` Michal Hocko
2015-10-22 4:21 ` [PATCH 8/8] mm: memcontrol: hook up vmpressure to socket pressure Johannes Weiner
2015-10-22 4:21 ` Johannes Weiner
2015-10-22 18:57 ` Vladimir Davydov
2015-10-22 18:57 ` Vladimir Davydov
2015-10-22 18:57 ` Vladimir Davydov
2015-10-22 18:45 ` [PATCH 0/8] mm: memcontrol: account socket memory in unified hierarchy Vladimir Davydov
2015-10-22 18:45 ` Vladimir Davydov
2015-10-22 18:45 ` Vladimir Davydov
2015-10-26 17:22 ` Johannes Weiner
2015-10-26 17:22 ` Johannes Weiner
2015-10-26 17:22 ` Johannes Weiner
2015-10-26 17:22 ` Johannes Weiner
2015-10-27 8:43 ` Vladimir Davydov
2015-10-27 8:43 ` Vladimir Davydov
2015-10-27 8:43 ` Vladimir Davydov
2015-10-27 16:01 ` Johannes Weiner
2015-10-27 16:01 ` Johannes Weiner
2015-10-28 8:20 ` Vladimir Davydov
2015-10-28 8:20 ` Vladimir Davydov
2015-10-28 8:20 ` Vladimir Davydov
2015-10-28 18:58 ` Johannes Weiner
2015-10-28 18:58 ` Johannes Weiner
2015-10-29 9:27 ` Vladimir Davydov
2015-10-29 9:27 ` Vladimir Davydov
2015-10-29 9:27 ` Vladimir Davydov
2015-10-29 17:52 ` Johannes Weiner
2015-10-29 17:52 ` Johannes Weiner
2015-10-29 17:52 ` Johannes Weiner
2015-11-02 14:47 ` Vladimir Davydov
2015-11-02 14:47 ` Vladimir Davydov
2015-11-02 14:47 ` Vladimir Davydov
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