lkml.org 
[lkml]   [2018]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: rcu: enable rcu_normal_after_boot by default for RT
On 2018-11-01 16:02:35 [-0700], Paul E. McKenney wrote:
> > The forcing of an expedited grace period is an expensive and very
> > RT-application unfriendly operation, as it forcibly preempts all running
> > tasks on CPUs which are preventing the gp from expiring.
> >
> > By default, as a policy decision, disable the expediting of grace
> > periods (after boot) on configurations which enable PREEMPT_RT_FULL.
> >
> > Suggested-by: Luiz Capitulino <lcapitulino@redhat.com>
> > Signed-off-by: Julia Cartwright <julia@ni.com>
> > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>
> In case it matters:
>
> Acked-by: Paul E. McKenney <paulmck@linux.ibm.com>
>
> Alternatively, any reason that I should not pull this into -rcu?
because we don't have CONFIG_PREEMPT_RT_FULL yet.
> Thanx, Paul

Sebastian

\
 
 \ /
  Last update: 2018-11-08 16:52    [W:0.170 / U:1.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site