Re: [PATCH 4/4] nohz: New option to force all CPUs in full dynticksrange

[Paul E. McKenney]

On Thu, Apr 11, 2013 at 05:53:53PM +0200, Frederic Weisbecker wrote:
> On Thu, Apr 11, 2013 at 08:37:21AM -0700, Paul E. McKenney wrote:
> > On Thu, Apr 11, 2013 at 05:19:59PM +0200, Frederic Weisbecker wrote:
> > > On Mon, Apr 08, 2013 at 02:57:18PM +0000, Christoph Lameter wrote:
> > > > I think we could simplify things quite a bit if we either
> > > > 
> > > > 1. Add any cpus specified with nohz_full/extended=xxx to
> > > > rcu_nocb. No check is then necessary anymore.
> > > 
> > > Yeah in the long term we probably want that indeed.
> > 
> > Or just build with RCU_NOCB_CPU_ALL=y to unconditionally offload all
> > the CPUs when using nohz_extended.
> 
> If there is no performance issue with that I'm all for it.

We won't know until a bunch of people try it.  ;-)

							Thanx, Paul

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