Messages in this thread | | | Date | Fri, 22 Mar 2013 09:28:20 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH] nohz1: Documentation |
| |
On Fri, Mar 22, 2013 at 02:38:58PM +0000, Christoph Lameter wrote: > On Thu, 21 Mar 2013, Paul E. McKenney wrote: > > > So, how long of busy periods are you contemplating for your SCHED_FIFO > > threads? Is it possible to tune/adjust the offending per-CPU ktheads > > to wake up less frequently than that time? > > Test programs right now run 10 seconds. 30 seconds would definitely be > enough for the worst case.
OK, that might be doable for some workloads. What happens when you try tuning the 2-second wakeup interval to (say) 45 seconds?
Thanx, Paul
| |