Re: [PATCH v2] sched/fair: Sync task util before slow-path wakeup

2017-09-20 Thread Brendan Jackman
Hi Peter, Ping. Log of previous discussion: https://patchwork.kernel.org/patch/9876769/ Cheers, Brendan On Tue, Aug 08 2017 at 09:55, Brendan Jackman wrote: > We use task_util in find_idlest_group via capacity_spare_wake. This > task_util is updated in wake_cap. However wake_cap is not the only

[PATCH v2] sched/fair: Sync task util before slow-path wakeup

2017-08-08 Thread Brendan Jackman
We use task_util in find_idlest_group via capacity_spare_wake. This task_util is updated in wake_cap. However wake_cap is not the only reason for ending up in find_idlest_group - we could have been sent there by wake_wide. So explicitly sync the task util with prev_cpu when we are about to head to