netdev - Re: [PATCH mm] slab: implement bulking for SLAB allocator

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Message-ID: <alpine.DEB.2.11.1509081020510.25292@east.gentwo.org>
Date:	Tue, 8 Sep 2015 10:22:32 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Jesper Dangaard Brouer <brouer@...hat.com>
cc:	iamjoonsoo.kim@....com, akpm@...ux-foundation.org,
	linux-mm@...ck.org, netdev@...r.kernel.org
Subject: Re: [PATCH mm] slab: implement bulking for SLAB allocator

On Tue, 8 Sep 2015, Jesper Dangaard Brouer wrote:

> Also notice how well bulking maintains the performance when the bulk
> size increases (which is a soar spot for the slub allocator).

Well you are not actually completing the free action in SLAB. This is
simply queueing the item to be freed later. Also was this test done on a
NUMA system? Alien caches at some point come into the picture.
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