linux-kernel - [RFC PATCH 0/9] Clean up and optimize sched averages

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Date:	Mon, 16 May 2016 02:59:25 +0800
From:	Yuyang Du <yuyang.du@...el.com>
To:	peterz@...radead.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org
Cc:	bsegall@...gle.com, pjt@...gle.com, morten.rasmussen@....com,
	vincent.guittot@...aro.org, dietmar.eggemann@....com,
	juri.lelli@....com, Yuyang Du <yuyang.du@...el.com>
Subject: [RFC PATCH 0/9] Clean up and optimize sched averages

Hi Peter,

Continue the left patches in this series. I realized some patches should
need thorough discussion (finally), so this post is marked RFC.

 - For LOAD_AVG_MAX_N, I am OK to stick to the old value, but it is worthwhile
   to get it cleared to the true value.

 - About the renames, I noticed there is an existing sched_avg_update(), but
   anyway, please NAK the renames you don't want, hopefully not all, ;)

 - Removing scale_load_down() for load_avg may have some unknown ramifications,
   is it worth trying?

The previous post is at: http://thread.gmane.org/gmane.linux.kernel/2214387/focus=2218488

Thanks,
Yuyang

--

Yuyang Du (9):
  sched/fair: Chance LOAD_AVG_MAX_N from 345 to 347
  documentation: Add scheduler/sched-avg.txt
  sched/fair: Add static to remove_entity_load_avg()
  sched/fair: Rename variable names for sched averages
  sched/fair: Change the variable to hold the number of periods to
    32-bit
  sched/fair: Add __always_inline compiler attribute to
    __accumulate_sum()
  sched/fair: Optimize __update_sched_avg()
  sched/fair: Remove scale_load_down() for load_avg
  sched/fair: Rename scale_load() and scale_load_down()

 Documentation/scheduler/sched-avg.txt |   94 ++++++++
 include/linux/sched.h                 |   21 +-
 kernel/sched/core.c                   |    8 +-
 kernel/sched/fair.c                   |  382 +++++++++++++++++----------------
 kernel/sched/sched.h                  |   18 +-
 5 files changed, 317 insertions(+), 206 deletions(-)
 create mode 100644 Documentation/scheduler/sched-avg.txt

-- 
1.7.9.5