linux-kernel - Re: [PATCH v2 04/29] slub: always get the cache from its page in kfree

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Date:	Fri, 11 May 2012 13:32:48 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Glauber Costa <glommer@...allels.com>
cc:	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	linux-mm@...ck.org, kamezawa.hiroyu@...fujitsu.com,
	Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
	Greg Thelen <gthelen@...gle.com>,
	Suleiman Souhlal <suleiman@...gle.com>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>, devel@...nvz.org,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH v2 04/29] slub: always get the cache from its page in
 kfree

On Fri, 11 May 2012, Glauber Costa wrote:

> Thank you in advance for your time reviewing this!

Where do I find the rationale for all of this? Trouble is that pages can
contain multiple objects f.e. so accounting of pages to groups is a bit fuzzy.
I have not followed memcg too much since it is not relevant (actual
it is potentially significantly harmful given the performance
impact) to the work loads that I am using.

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