On Fri, Dec 22, 2017 at 09:05:45AM +0100, Vincent Guittot wrote: > On 22 December 2017 at 08:59, Peter Zijlstra <pet...@infradead.org> wrote: > > On Thu, Dec 21, 2017 at 05:56:32PM +0100, Vincent Guittot wrote: > >> In fact, we can't only rely on the tick and newly_idle load balance to > >> ensure a period update of the blocked load because they can never > >> happen. > > > > I'm confused, why would the ilb not happen? > > the ilb will be kick only if tick fires which might not be the case > for task that runs less than a tick
Oh, urgh, you're talking about when the entire system is idle. Yes indeed. Lemme have a think, surely we can do something saner there.
