linux-kernel - Re: [PATCH v5 16/18] slab: propagate tunables values

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Message-ID: <0000013a7a94c439-825659cc-8e6a-4905-909c-db1b230a4086-000000@email.amazonses.com>
Date:	Fri, 19 Oct 2012 19:51:42 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Glauber Costa <glommer@...allels.com>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org, Mel Gorman <mgorman@...e.de>,
	Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	kamezawa.hiroyu@...fujitsu.com,
	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...nel.org>, devel@...nvz.org,
	Pekka Enberg <penberg@...helsinki.fi>,
	Suleiman Souhlal <suleiman@...gle.com>
Subject: Re: [PATCH v5 16/18] slab: propagate tunables values

On Fri, 19 Oct 2012, Glauber Costa wrote:

> SLAB allows us to tune a particular cache behavior with tunables.
> When creating a new memcg cache copy, we'd like to preserve any tunables
> the parent cache already had.

SLAB and SLUB allow tuning. Could you come up with some way to put these
things into slab common and make it flexible so that the tuning could be
used for future allocators (like SLAM etc)?
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