Date: Tue, 29 May 2012 09:52:59 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
To: Glauber Costa <glommer@parallels.com>
cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org,
        kamezawa.hiroyu@jp.fujitsu.com, Tejun Heo <tj@kernel.org>,
        Li Zefan <lizefan@huawei.com>, Greg Thelen <gthelen@google.com>,
        Suleiman Souhlal <suleiman@google.com>, Michal Hocko <mhocko@suse.cz>,
        Johannes Weiner <hannes@cmpxchg.org>, devel@openvz.org,
        David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH v3 19/28] slab: per-memcg accounting of slab caches
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On Fri, 25 May 2012, Glauber Costa wrote:

> This patch charges allocation of a slab object to a particular
> memcg.

Ok so a requirement is to support tracking of individual slab
objects to cgroups? That is going to be quite expensive since it will
touch the hotpaths.


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