From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Christoph Lameter <cl@linux.com>, Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.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>,
Kevin Hilman <khilman@linaro.org>,
Li Zhong <zhong@linux.vnet.ibm.com>,
Namhyung Kim <namhyung.kim@lge.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 4/4] nohz: New option to force all CPUs in full dynticks range
Date: Thu, 11 Apr 2013 10:11:53 -0700 [thread overview]
Message-ID: <20130411171153.GG29861@linux.vnet.ibm.com> (raw)
In-Reply-To: <20130411170420.GA17129@somewhere.redhat.com>
On Thu, Apr 11, 2013 at 07:04:23PM +0200, Frederic Weisbecker wrote:
> On Thu, Apr 11, 2013 at 04:41:07PM +0000, Christoph Lameter wrote:
> > On Thu, 11 Apr 2013, Frederic Weisbecker wrote:
> >
> > > If there is no performance issue with that I'm all for it.
> >
> > Or have a
> >
> > CONFIG_LOWLATENCY
> >
> > that boots up a kernel with the proper configuration?
>
> It may be too general for a naming. But I don't mind just
> selecting CONFIG_RCU_NOCBS_ALL unconditionally. It's easily
> changed in the future if anybody complains.
>
> Btw, if CONFIG_RCU_NOCBS_ALL is set, the rcu_nocbs= parameter
> is ignored, right? If you want to keep that direction and not
> override the Kconfig choice, may be warn the user about that
> if the boot parameter is passed?
Fair point. Let me think about how I should approach this.
Thanx, Paul
next prev parent reply other threads:[~2013-04-11 17:16 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-27 15:32 [PATCH 0/4] nohz: Full dynticks fixes/improvements Frederic Weisbecker
2013-03-27 15:32 ` [PATCH 1/4] nohz: Force boot CPU outside full dynticks range Frederic Weisbecker
2013-03-28 7:38 ` Ingo Molnar
2013-03-28 13:08 ` Frederic Weisbecker
2013-03-27 15:32 ` [PATCH 2/4] nohz: Print final full dynticks CPUs range on boot Frederic Weisbecker
2013-03-28 7:40 ` Ingo Molnar
2013-03-28 13:12 ` Frederic Weisbecker
2013-03-29 0:25 ` Paul Gortmaker
2013-03-29 0:39 ` Frederic Weisbecker
2013-03-29 2:00 ` Paul E. McKenney
2013-03-29 2:08 ` Paul Gortmaker
2013-03-29 3:51 ` Paul E. McKenney
2013-03-29 2:02 ` Paul Gortmaker
2013-03-27 15:32 ` [PATCH 3/4] nohz: Ensure full dynticks CPUs are RCU nocbs Frederic Weisbecker
2013-03-27 15:32 ` [PATCH 4/4] nohz: New option to force all CPUs in full dynticks range Frederic Weisbecker
2013-03-28 7:45 ` Ingo Molnar
2013-03-28 13:43 ` Frederic Weisbecker
2013-03-30 9:10 ` Ingo Molnar
2013-04-02 13:09 ` Frederic Weisbecker
2013-04-08 14:57 ` Christoph Lameter
2013-04-09 13:22 ` Paul Gortmaker
2013-04-09 14:35 ` Christoph Lameter
2013-04-11 15:19 ` Frederic Weisbecker
2013-04-11 15:37 ` Paul E. McKenney
2013-04-11 15:53 ` Frederic Weisbecker
2013-04-11 16:10 ` Paul E. McKenney
2013-04-11 16:41 ` Christoph Lameter
2013-04-11 17:04 ` Frederic Weisbecker
2013-04-11 17:11 ` Paul E. McKenney [this message]
2013-04-11 17:28 ` Frederic Weisbecker
2013-04-11 19:17 ` Paul E. McKenney
2013-04-12 15:59 ` Christoph Lameter
2013-04-15 10:27 ` Ingo Molnar
2013-04-15 16:11 ` Christoph Lameter
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