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Message-Id: <200709081808.42421.nickpiggin@yahoo.com.au>
Date:	Sat, 8 Sep 2007 18:08:42 +1000
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Christoph Lameter <clameter@....com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>, mingo@...e.hu
Subject: Re: tbench regression - Why process scheduler has impact on tbench and why small per-cpu slab (SLUB) cache creates the scenario?

On Wednesday 05 September 2007 17:07, Christoph Lameter wrote:
> On Wed, 5 Sep 2007, Zhang, Yanmin wrote:
> > > slub_max_order=3 slub_min_objects=8
> >
> > I tried this approach. The testing result showed 2.6.23-rc4 is about
> > 2.5% better than 2.6.22. It really resovles the issue.
>
> Note also that the configuration you tried is the way SLUB is configured
> in Andrew's tree.

It still doesn't sound like it is competitive with SLAB at the same sizes.
What's the problem?

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