On 19 October 2016 at 13:33, Peter Zijlstra <pet...@infradead.org> wrote: > On Tue, Oct 18, 2016 at 01:56:51PM +0200, Vincent Guittot wrote: > >> --- >> kernel/sched/fair.c | 9 ++++++++- >> 1 file changed, 8 insertions(+), 1 deletion(-) >> >> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c >> index 8b03fb5..89776ac 100644 >> --- a/kernel/sched/fair.c >> +++ b/kernel/sched/fair.c >> @@ -690,7 +690,14 @@ void init_entity_runnable_average(struct sched_entity >> *se) >> * will definitely be update (after enqueue). >> */ >> sa->period_contrib = 1023; >> - sa->load_avg = scale_load_down(se->load.weight); >> + /* >> + * Tasks are intialized with full load to be seen as heavy task until >> + * they get a chance to stabilize to their real load level. >> + * group entity are intialized with null load to reflect the fact that >> + * nothing has been attached yet to the task group. >> + */ >> + if (entity_is_task(se)) >> + sa->load_avg = scale_load_down(se->load.weight); >> sa->load_sum = sa->load_avg * LOAD_AVG_MAX; >> /* >> * At this point, util_avg won't be used in select_task_rq_fair anyway >> > > Vince, could you post a proper version of this patch with changelogs and > tags so that we can get that merged into Linus' tree and stable for 4.8?
yes. i just have to finish the changelog and i sent it >
