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SubjectRe: [PATCH RFC] rcu: Limit GP initialization to CPUs that have been online
On Thu, Mar 15, 2012 at 10:02:36AM -0700, Paul E. McKenney wrote:
> On Thu, Mar 15, 2012 at 04:07:11AM +0100, Mike Galbraith wrote:
> > On Thu, 2012-03-15 at 03:42 +0100, Mike Galbraith wrote:
> > > On Wed, 2012-03-14 at 09:56 -0700, Paul E. McKenney wrote:
> > >
> > > > Does the following work better? It does pass my fake-big-system tests
> > > > (more testing in the works).
> > >
> > > Yup, tip booted fine. Thanks! I'll test, see if it gets upset.
> >
> > Wedged into 3.0 enterprise booted fine too, is now running rcutorture.
> > I'll add hotplug after it runs explosion free for a while. Any
> > suggestions for giving both virgin and 3.0 a thorough trouncing?
>
> It would be good to check the latency of RCU's grace-period
> initialization, and comparing the results with and without this patch.
> Dimitri might have scripting for that.
>

I'll attempt to get that tested yet this week.


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