Re: [PATCH 1/3] sched/fair: Fix asym packing to select correct cpu

2016-03-31 Thread Srikar Dronamraju
* Peter Zijlstra [2016-03-29 14:19:24]: > On Wed, Mar 23, 2016 at 05:04:40PM +0530, Srikar Dronamraju wrote: > > If asymmetric packing is used when target cpu is busy, > > update_sd_pick_busiest(), can select a lightly loaded cpu. > > find_busiest_group() has checks to ensure asym packing is only

Re: [PATCH 1/3] sched/fair: Fix asym packing to select correct cpu

2016-03-29 Thread Peter Zijlstra
On Wed, Mar 23, 2016 at 05:04:40PM +0530, Srikar Dronamraju wrote: > If asymmetric packing is used when target cpu is busy, > update_sd_pick_busiest(), can select a lightly loaded cpu. > find_busiest_group() has checks to ensure asym packing is only used > when target cpu is not busy. However it m

Re: [PATCH 1/3] sched/fair: Fix asym packing to select correct cpu

2016-03-23 Thread Michael Neuling
On Wed, 2016-03-23 at 17:04 +0530, Srikar Dronamraju wrote: > If asymmetric packing is used when target cpu is busy, > update_sd_pick_busiest(), can select a lightly loaded cpu. > find_busiest_group() has checks to ensure asym packing is only used > when target cpu is not busy. However it may not