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Date: Wed, 14 Dec 2011 08:47:36 +0200 (EET)
From: Pekka Enberg <penberg@kernel.org>
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To: Eric Dumazet <eric.dumazet@gmail.com>
cc: "Alex,Shi" <alex.shi@intel.com>, David Rientjes <rientjes@google.com>,
        Christoph Lameter <cl@linux.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH 1/3] slub: set a criteria for slub node partial adding
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On Wed, 14 Dec 2011, Eric Dumazet wrote:
> We should try to batch things a bit, instead of doing a very small unit
> of work in slow path.
>
> We now have a very fast fastpath, but inefficient slow path.
>
> SLAB has a litle cache per cpu, we could add one to SLUB for freed
> objects, not belonging to current slab. This could avoid all these
> activate/deactivate overhead.

Yeah, this is definitely worth looking at.

 			Pekka