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Date: Fri, 23 Oct 2015 06:59:57 -0700 (PDT)
Message-Id: <20151023.065957.1690815054807881760.davem@davemloft.net>
Subject: Re: [PATCH 5/8] mm: memcontrol: account socket memory on unified
 hierarchy
From: David Miller <davem@davemloft.net>
In-Reply-To: <20151023131956.GA15375@dhcp22.suse.cz>
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To: mhocko@kernel.org
Cc: hannes@cmpxchg.org, 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

From: Michal Hocko <mhocko@kernel.org>
Date: Fri, 23 Oct 2015 15:19:56 +0200

> On Thu 22-10-15 00:21:33, Johannes Weiner wrote:
>> Socket memory can be a significant share of overall memory consumed by
>> common workloads. In order to provide reasonable resource isolation
>> out-of-the-box in the unified hierarchy, this type of memory needs to
>> be accounted and tracked per default in the memory controller.
> 
> What about users who do not want to pay an additional overhead for the
> accounting? How can they disable it?

Yeah, this really cannot pass.

This extra overhead will be seen by %99.9999 of users, since entities
(especially distributions) just flip on all of these config options by
default.

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