From: Frederic Weisbecker <fweisbec@gmail.com>
To: Christoph Lameter <cl@linux.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: 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 19:04:23 +0200 [thread overview]
Message-ID: <20130411170420.GA17129@somewhere.redhat.com> (raw)
In-Reply-To: <0000013df9f8d526-2783fba3-4dc9-44c6-8b02-2c321eb5b37b-000000@email.amazonses.com>
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?
Thanks.
next prev parent reply other threads:[~2013-04-11 17:04 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 [this message]
2013-04-11 17:11 ` Paul E. McKenney
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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