From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Vatika Harlalka <vatikaharlalka@gmail.com>,
mingo@redhat.com, tglx@linutronix.de, rafael.j.wysocki@intel.com,
schwidefsky@de.ibm.com, linux-kernel@vger.kernel.org,
preetium@andrew.cmu.edu, preeti.murthy@gmail.com
Subject: Re: [PATCH 0/2] nohz_full: Offload task_tick to remote housekeeping cpus for nohz_full cpus
Date: Thu, 13 Aug 2015 17:05:45 +0200 [thread overview]
Message-ID: <20150813150545.GD16853@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20150813124401.GA29958@lerouge>
On Thu, Aug 13, 2015 at 02:44:02PM +0200, Frederic Weisbecker wrote:
> On Thu, Aug 13, 2015 at 02:22:23PM +0200, Peter Zijlstra wrote:
> > On Thu, Aug 13, 2015 at 02:55:36PM +0530, Vatika Harlalka wrote:
> > > This patchset is for offloading task_tick() to a remote housekeeping
> > > cpu. The larger aim is to stop ticks on nohz_full cpus. For this, extra
> > > work must be done by housekeeping cpus. So, task_tick is called from a
> > > delayed workqueue for nohz_full cpus and the work is requeued every second
> > > for those nohz_full cpus whose ticks are stopped while they are busy. In
> > > the rest of the cases it will lead to redundant accounting. To facilitate
> > > this, a new function tick_nohz_remote_tick_stopped is added to indicate
> > > whether ticks are stopped on a remote cpu.
> > > Tick related code in core.c is moved to tick.c
> >
> > *sigh* of course you didn't read what I've written on this topic..
>
> What is it? Note Vatika wrote this after my suggestion, so if there is an issue,
> I'm likely the responsible :-) But I don't recall you opposed to this solution.
*sigh* of course you _could_ all use Google yourselves.
Re-read: https://patches.linaro.org/28290/
I see nothing like the stuff I asked for in here, on top it creates the
stupid tick.c file.
next prev parent reply other threads:[~2015-08-13 15:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-13 9:25 [PATCH 0/2] nohz_full: Offload task_tick to remote housekeeping cpus for nohz_full cpus Vatika Harlalka
2015-08-13 9:25 ` [PATCH 1/2] nohz_full: Move tick related code to tick.c Vatika Harlalka
2015-08-13 12:22 ` [PATCH 0/2] nohz_full: Offload task_tick to remote housekeeping cpus for nohz_full cpus Peter Zijlstra
2015-08-13 12:44 ` Frederic Weisbecker
2015-08-13 15:05 ` Peter Zijlstra [this message]
2015-08-13 15:36 ` Frederic Weisbecker
2015-08-13 19:22 ` Vatika Harlalka
2015-08-20 12:50 ` preetium
2015-08-21 15:55 ` Frederic Weisbecker
[not found] ` <CACFGFQQ8mBzS-NhfNsp2nao2XpUksxu3t_Jse2zL2EQHLAK_Hg@mail.gmail.com>
2015-09-11 17:05 ` Vatika Harlalka
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