On Wed, 19 Dec 2018 at 15:59, Valentin Schneider <valentin.schnei...@arm.com> wrote: > > > > On 19/12/2018 13:39, Vincent Guittot wrote: > [...] > >> I used that setup out of convenience for myself, but AFAICT that use-case > >> just stresses that issue. > > > > After looking at you UC in details, your problem comes from the wl=1 > > for cpu0 whereas there is no running task. > > But wl!=0 without running task should not be possible since fdf5f3 > > ("wsched/fair: Disable LB_BIAS by default") > > > > This explain the 1023 instead of 1022 > > > > > > True, I had a look at the trace and there doesn't seem to be any running > task on that CPU. That's a separate matter however - the rounding issues > can happen regardless of the wl values.
But it means that the rounding fix +1 works and your problems comes from something else