From: Ingo Molnar <mingo@kernel.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Chris Metcalf <cmetcalf@tilera.com>,
Christoph Lameter <cl@linux.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 E. McKenney" <paulmck@linux.vnet.ibm.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [GIT PULL] nohz: Full dynticks base interface
Date: Tue, 26 Mar 2013 09:15:27 +0100 [thread overview]
Message-ID: <20130326081527.GA27128@gmail.com> (raw)
In-Reply-To: <CAFTL4hx4FLaRR6i9ap9UrCZY4ikhVtLfUqWSsjTpsO3dvShUjQ@mail.gmail.com>
* Frederic Weisbecker <fweisbec@gmail.com> wrote:
> > That way I will be able to test it automatically via randconfig and
> > such.
>
> Sure, I'm adding such an option.
>
> > My next question/request after that would be: could we make sure that
> > enabling this option does not break any applications or kernel
> > functionality, ASAP? Once that is offered, it becomes pushable to
> > v3.10 I think.
>
> So that's already the case. I'm careful that, as we iterate, the changes
> aren't supposed to break something in the middle. the final code that
> eventually shuts the tick down should be the last one in the series:
> once we know it is safe to do so.
I mean, with the .config (or boot) option enabled, with tip:timers/nohz
as-is, will everything work? We cannot push a feature to Linus that
doesn't work reliably when enabled ...
Thanks,
Ingo
next prev parent reply other threads:[~2013-03-26 8:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-21 15:24 [GIT PULL] nohz: Full dynticks base interface Frederic Weisbecker
2013-03-21 15:24 ` [PATCH 1/3] nohz: Basic full dynticks interface Frederic Weisbecker
2013-03-21 15:24 ` [PATCH 2/3] nohz: Assign timekeeping duty to a CPU outside the full dynticks range Frederic Weisbecker
2013-03-21 15:24 ` [PATCH 3/3] nohz: Wake up full dynticks CPUs when a timer gets enqueued Frederic Weisbecker
2013-03-24 8:17 ` [GIT PULL] nohz: Full dynticks base interface Ingo Molnar
2013-03-24 14:46 ` Frederic Weisbecker
2013-03-25 17:02 ` Paul E. McKenney
2013-03-25 17:12 ` Frederic Weisbecker
2013-03-25 17:18 ` Paul E. McKenney
2013-03-26 23:48 ` Frederic Weisbecker
2013-03-27 1:23 ` Paul E. McKenney
2013-03-26 8:15 ` Ingo Molnar [this message]
2013-03-26 12:39 ` Frederic Weisbecker
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