Messages in this thread | | | Date | Thu, 11 Apr 2013 09:10:31 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH 4/4] nohz: New option to force all CPUs in full dynticks range |
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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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