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>,
Andrew Morton <akpm@linux-foundation.org>,
Chris Metcalf <cmetcalf@tilera.com>,
Geoff Levand <geoff@infradead.org>,
Gilad Ben Yossef <gilad@benyossef.com>,
Hakan Akkan <hakanakkan@gmail.com>,
Li Zhong <zhong@linux.vnet.ibm.com>,
Namhyung Kim <namhyung.kim@lge.com>,
"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
Date: Thu, 7 Feb 2013 20:55:39 +0100 [thread overview]
Message-ID: <20130207195539.GD25223@gmail.com> (raw)
In-Reply-To: <0000013cb614e4e5-10f6e9ce-08e1-47f6-9044-565b4084c354-000000@email.amazonses.com>
* 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
next prev parent reply other threads:[~2013-02-07 19:55 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-06 18:28 [ANNOUNCE] 3.8-rc6-nohz4 Frederic Weisbecker
2013-02-07 2:50 ` Steven Rostedt
2013-02-07 11:10 ` Ingo Molnar
2013-02-07 15:41 ` Christoph Lameter
2013-02-07 16:12 ` Steven Rostedt
2013-02-07 16:30 ` Paul E. McKenney
2013-02-07 17:06 ` Steven Rostedt
2013-02-07 17:37 ` Paul E. McKenney
2013-02-07 16:25 ` Frederic Weisbecker
2013-02-07 16:41 ` Steven Rostedt
2013-02-07 16:45 ` Frederic Weisbecker
2013-02-07 17:03 ` Steven Rostedt
2013-02-07 17:45 ` Frederic Weisbecker
2013-02-07 19:07 ` Ingo Molnar
2013-02-07 19:19 ` Steven Rostedt
2013-02-08 15:51 ` Frederic Weisbecker
2013-02-11 9:59 ` Ingo Molnar
2013-02-07 16:41 ` Frederic Weisbecker
2013-02-07 17:00 ` Steven Rostedt
2013-02-07 17:18 ` Frederic Weisbecker
2013-02-07 19:14 ` Christoph Lameter
2013-02-07 19:55 ` Ingo Molnar [this message]
2013-02-08 6:18 ` Mike Galbraith
2013-02-08 15:53 ` Frederic Weisbecker
2013-02-08 16:18 ` Steven Rostedt
2013-02-08 16:24 ` Christoph Lameter
2013-02-08 18:57 ` Clark Williams
2013-02-08 19:43 ` Christoph Lameter
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