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Date: Thu, 7 Feb 2013 20:55:39 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Christoph Lameter <cl@linux.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Alessio Igor Bogani <abogani@kernel.org>,
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        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Paul Gortmaker <paul.gortmaker@windriver.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [ANNOUNCE] 3.8-rc6-nohz4
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* Christoph Lameter <cl@linux.com> 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?

No, it was simply buggy.

Thanks,

	Ingo