linux-kernel - Re: [PATCH v3 08/16] slab: allow enable_cpu_cache to use preset values for its tunables

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Message-ID: <00000139d9fc4ccc-d0904b9b-5bbf-4cf6-9325-013f16f11745-000000@email.amazonses.com>
Date:	Tue, 18 Sep 2012 15:25:54 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Glauber Costa <glommer@...allels.com>
cc:	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	kamezawa.hiroyu@...fujitsu.com, devel@...nvz.org,
	Tejun Heo <tj@...nel.org>, linux-mm@...ck.org,
	Suleiman Souhlal <suleiman@...gle.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mel Gorman <mgorman@...e.de>,
	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH v3 08/16] slab: allow enable_cpu_cache to use preset
 values for its tunables

On Tue, 18 Sep 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.

Again the same is true for SLUB. Some generic way of preserving tuning
parameters would be appreciated.
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