sched/fair: Beef up wake_wide()

-stable 4.1 Sergey Senozhatsky 1 participant 1 message Aug 4, 2016 Stable branch

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Sergey Senozhatsky

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2016-08-04 02:12 UTC #0 lore raw

Hello,

I've tracked down a performance regression on 4.1 to select_task_rq_fair() CPU affinity heuristics, and the patch in question addressed it:

commit 63b0e9edceec10fa41ec33393a1515a5ff444277
Author: Mike Galbraith <umgwanakikbuti at gmail.com>

sched/fair: Beef up wake_wide()

-ss