linux-kernel - RE: Regression with SLUB on Netperf and Volanomark

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Message-Id: <1178322083.23795.217.camel@localhost.localdomain>
Date:	Fri, 04 May 2007 16:41:23 -0700
From:	Tim Chen <tim.c.chen@...ux.intel.com>
To:	Christoph Lameter <clameter@....com>
Cc:	"Chen, Tim C" <tim.c.chen@...el.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	"Zhang, Yanmin" <yanmin.zhang@...el.com>,
	"Wang, Peter Xihong" <peter.xihong.wang@...el.com>,
	Arjan van de Ven <arjan@...radead.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: RE: Regression with SLUB on Netperf and Volanomark

On Thu, 2007-05-03 at 18:45 -0700, Christoph Lameter wrote:
> Hmmmm.. One potential issues are the complicated way the slab is 
> handled. Could you try this patch and see what impact it has?
> 
The patch boost the throughput of TCP_STREAM test by 5%, for both slab
and slub.  But slab is still 5% better in my tests.

> If it has any then remove the cachline alignment and see how that 
> influences things.

Removing the cacheline alignment didn't change the throughput.

Tim
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