mbox series

[V3,0/2] cpufreq_cooling: Get effective CPU utilization from scheduler

Message ID cover.1605770951.git.viresh.kumar@linaro.org
Headers show
Series cpufreq_cooling: Get effective CPU utilization from scheduler | expand

Message

Viresh Kumar Nov. 19, 2020, 7:38 a.m. UTC 
Hi,

This patchset makes the cpufreq_cooling driver reuse the CPU utilization
metric provided by the scheduler instead of depending on idle and busy
times of a CPU, which aren't that accurate to measure the busyness of a
CPU for the next cycle. More details can be seen in the commit log of
patch 2/2.

V2->V3:
- Put the scheduler helpers within ifdef CONFIG_SMP.
- Keep both SMP and !SMP implementations in the cpufreq_cooling driver.
- Improved commit log with testing related information.

--
Viresh

Viresh Kumar (2):
  sched/core: Rename and move schedutil_cpu_util() to core.c
  thermal: cpufreq_cooling: Reuse sched_cpu_util() for SMP platforms

 drivers/thermal/cpufreq_cooling.c |  68 ++++++++++++++----
 include/linux/sched.h             |  21 ++++++
 kernel/sched/core.c               | 115 +++++++++++++++++++++++++++++
 kernel/sched/cpufreq_schedutil.c  | 116 +-----------------------------
 kernel/sched/fair.c               |   6 +-
 kernel/sched/sched.h              |  31 +-------
 6 files changed, 199 insertions(+), 158 deletions(-)


base-commit: 3650b228f83adda7e5ee532e2b90429c03f7b9ec
-- 
2.25.0.rc1.19.g042ed3e048af