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Message-ID: <1360304280.5781.2.camel@marge.simpson.net>
Subject: Re: [ANNOUNCE] 3.8-rc6-nohz4
From: Mike Galbraith <bitbucket@online.de>
To: Christoph Lameter <cl@linux.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
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Date: Fri, 08 Feb 2013 07:18:00 +0100
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On Thu, 2013-02-07 at 19:14 +0000, Christoph Lameter wrote: 
> On Thu, 7 Feb 2013, Frederic Weisbecker wrote:
> 
> > Not with hrtick.
> 
> hrtick? Did we not already try that a couple of years back and it turned
> out that the overhead of constantly reprogramming a timer via the PCI bus
> was causing too much of a performance regression?

Yup.

-Mike