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Date: Thu, 8 Sep 2011 13:37:52 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
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To: "Alex,Shi" <alex.shi@intel.com>
cc: "penberg@kernel.org" <penberg@kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Huang, Ying" <ying.huang@intel.com>,
        "Li, Shaohua" <shaohua.li@intel.com>,
        "Chen, Tim C" <tim.c.chen@intel.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH] slub Discard slab page only when node partials > minimum
 setting
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On Thu, 8 Sep 2011, Alex,Shi wrote:

> BTW, some testing results for your PCP SLUB:
>
> for hackbench process testing:
> on WSM-EP, inc ~60%, NHM-EP inc ~25%
> on NHM-EX, inc ~200%, core2-EP, inc ~250%.
> on Tigerton-EX, inc 1900%, :)

There is no minus on tigerton. I hope that is not a regression?
>
> for hackbench thread testing:
> on WSM-EP, no clear inc, NHM-EP no clear inc
> on NHM-EX, inc 10%, core2-EP, inc ~20%.
> on Tigertion-EX, inc 100%,

> for  netperf loopback testing, no clear performance change.

Hmmm... The sizes of the per cpu partial objects could be varied a bit to
see if more would make an impact.