linux-kernel - Re: Netperf TCP_RR(loopback) 10% regression in 2.6.24-rc6, comparing with 2.6.22

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Message-Id: <1200443644.3151.33.camel@ymzhang>
Date:	Wed, 16 Jan 2008 08:34:04 +0800
From:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Ilpo JÃ¤rvinen <ilpo.jarvinen@...sinki.fi>,
	LKML <linux-kernel@...r.kernel.org>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: Netperf TCP_RR(loopback) 10% regression in
	2.6.24-rc6,	comparing with 2.6.22

On Mon, 2008-01-14 at 21:53 +1100, Herbert Xu wrote:
> On Mon, Jan 14, 2008 at 08:44:40AM +0000, Ilpo Järvinen wrote:
> >
> > > > I tried to use bisect to locate the bad patch between 2.6.22 and 2.6.23-rc1,
> > > > but the bisected kernel wasn't stable and went crazy.
> > 
> > TCP work between that is very much non-existing.
> 
> Make sure you haven't switched between SLAB/SLUB while testing this.
I can make sure. In addition, I tried both SLAB and SLUB and make sure the 
regression is still there if CONFIG_SLAB=y.

Thanks,
-yanmin

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