linux-kernel - Re: 2.6.18-rt1

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Date:	Mon, 25 Sep 2006 09:12:15 -0700
From:	Mike Kravetz <kravetz@...ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	John Stultz <johnstul@...ibm.com>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: 2.6.18-rt1

On Wed, Sep 20, 2006 at 04:19:07PM +0200, Ingo Molnar wrote:
> In particular, a nasty softirq performance bug has been fixed, which 
> caused the "5x slowdown under TCP" bug reported to lkml - those TCP 
> performance figures are now on par with vanilla performance.

Just curious about the cause and fix for this issue.  I tried searching
the mail lists for discussion but came up empty.  The patch it too big
for me to determine what specific changes addressed this issue.  If anyone
can point me in the right direction, that would be appreciated.

Thanks,
-- 
Mike
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