linux-kernel - [RFC 0/4] sched/fair: Rebalance tasks based on affinity

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Date:	Mon, 20 Jun 2016 14:15:10 +0200
From:	Jiri Olsa <jolsa@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	James Hartsock <hartsjc@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Kirill Tkhai <ktkhai@...allels.com>
Subject: [RFC 0/4] sched/fair: Rebalance tasks based on affinity

hi,
please consider this to be more of a question
for opinions on how to solve this issue ;-)

I'm following up on my previous post:
  http://marc.info/?t=145975837400001&r=1&w=2

The patchset is working for my testcase and our
other tests looks good so far, but I'm not sure
I haven't broken something else or used the right
wheel to implement this.

The issue itself and the fix are described in
changelog of patch 3/4.

thanks for any feedback,
jirka


---
Jiri Olsa (4):
      sched/fair: Introduce sched_entity::dont_balance
      sched/fair: Introduce idle enter/exit balance callbacks
      sched/fair: Add REBALANCE_AFFINITY rebalancing code
      sched/fair: Add schedstat debug values for REBALANCE_AFFINITY

 include/linux/sched.h   |   4 +++
 kernel/sched/debug.c    |   4 +++
 kernel/sched/fair.c     | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------
 kernel/sched/features.h |   1 +
 kernel/sched/idle.c     |   2 ++
 kernel/sched/sched.h    |   8 ++++++
 6 files changed, 181 insertions(+), 8 deletions(-)