Messages in this thread | | | Date | Fri, 8 Apr 2022 17:27:14 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH v2] EXP rcu: Move expedited grace period (GP) work to RT kthread_worker |
| |
On Fri, 8 Apr 2022 08:58:34 -0700 "Paul E. McKenney" <paulmck@kernel.org> wrote:
> > I do not see why PREEMPT_RT is special here. Why was it singled out? > > Because I didn't see the point of doing kthread_create_worker() to create > a pair of kthread_worker structuress that were never going to be used > in PREEMPT_RT kernels. > > Or are PREEMPT_RT kernels no longer booting with rcupdate.rcu_normal? > Last I knew, they all did this to avoid IPI latencies from expedited > grace periods. Has this changed?
Honestly, I don't know. But I guess I can go and find out ;-)
-- Steve
| |