linux-kernel - Re: [PATCH] nohz: Revert "nohz: Set isolcpus when nohz

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Message-ID: <20151012175459.GD1113@lerouge>
Date:	Mon, 12 Oct 2015 19:55:01 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Christoph Lameter <cl@...ux.com>,
	Chris Metcalf <cmetcalf@...hip.com>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Dave Jones <davej@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...hat.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] nohz: Revert "nohz: Set isolcpus when nohz_full is set"

On Mon, Oct 12, 2015 at 10:52:08AM -0700, Paul E. McKenney wrote:
> On Mon, Oct 12, 2015 at 12:45:08PM -0500, Christoph Lameter wrote:
> > On Mon, 12 Oct 2015, Frederic Weisbecker wrote:
> > 
> > > But yeah if you guys want to create a new parameter that gathers nohz
> > > and isolcpus I think we can.
> > 
> > Could we also add the rcu settings?
> 
> I thought that I already had.  What am I still missing?
> 
> > > task_isolation is really just about tasks so it should be another name.
> > 
> > no_os_cpus?
> > 
> > os_free_cpus?
> 
> os_jitter_free_cpus?
> 
> clean_cpus?
> 
> quiet_cpus?
> 
> I have no problem with any of the names proposed thus far, but obviously
> could not resist the urge to propose a few more.

I moved forward quite slowly with nohz full over the years but at least I'm proud
that this subsystem introduced some of the most interesting naming challenges!
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