linux-kernel - [PATCH 0/7] sched/fair: fixes and cleanups

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Date:	Fri, 29 Apr 2016 20:32:37 +0100
From:	Dietmar Eggemann <dietmar.eggemann@....com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org,
	Morten Rasmussen <morten.rasmussen@....com>
Subject: [PATCH 0/7] sched/fair: fixes and cleanups

This is a collection of rather loosely coupled small changes to the cfs 
scheduler related to: 

Comments (patch 1/7, 2/7):

  Remove/fix some outdated comments related to 'power aware scheduling'
  and smpnice.

Load-balance (patch 3/7 - 5/7):

  Change unit of load_above_capacity in calculate_imbalance() from
  [load] to [load/capacity]

  Refactoring logic in fix_small_imbalance() and remove
  cpu_avg_load_per_task().

Misc (patch 6/7, 7/7):

  Reorder update_sd_lb_stats() and use group_cfs_rq(se) throughout
  fair.c.

Test-results:

IVB-EP (2*10*2):

  perf stat --null --repeat 10 -- perf bench sched messaging -g 50 -l 5000

   Before:                     After:
   4.784556741 ( +- 0.99% )    4.760953662 ( +- 0.47% )

Juno (ARM64) (2B/4l*1):

  perf stat --null --repeat 10 -- perf bench sched messaging -g 20 -l 500

  Before:                     After:
  7.227439638 ( +- 0.50% )    7.151685712 ( +- 0.64% )

Dietmar Eggemann (5):
  sched/fair: Remove remaining power aware scheduling comments
  sched/fair: Fix comment in calculate_imbalance()
  sched/fair: Clean up the logic in fix_small_imbalance()
  sched/fair: Reorder code in update_sd_lb_stats()
  sched/fair: Use group_cfs_rq(se) instead of se->my_q

Morten Rasmussen (2):
  sched/fair: Correct unit of load_above_capacity
  sched/fair: Remove cpu_avg_load_per_task()

 kernel/sched/fair.c | 71 ++++++++++++++++++++---------------------------------
 1 file changed, 26 insertions(+), 45 deletions(-)

-- 
1.9.1