Re: [PATCH] nohz1: Documentation

From: Paul E. McKenney
Date: Fri Mar 22 2013 - 12:30:17 EST

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

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