linux-kernel - [PATCH 0/2] cpufreq_cooling: Get effective CPU utilization from scheduler

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 14 Jul 2020 12:06:51 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Daniel Kachhap <amit.kachhap@...il.com>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Ben Segall <bsegall@...gle.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Javi Merino <javi.merino@...nel.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Mel Gorman <mgorman@...e.de>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Steven Rostedt <rostedt@...dmis.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-kernel@...r.kernel.org, Quentin Perret <qperret@...gle.com>,
        linux-pm@...r.kernel.org
Subject: [PATCH 0/2] cpufreq_cooling: Get effective CPU utilization from scheduler

Hi,

Schedutil and fair.c use schedutil_cpu_util() currently to get an idea
of how busy a CPU is. Do the same for cpufreq_cooling which uses CPU's
idle time currently to get load, which is used to calculate the current
power consumption of the CPUs.

Tested with hackbench and sysbench on Hikey (octa-core SMP) and no
regression was observed.

--
Viresh

Viresh Kumar (2):
  sched/core: Rename and move schedutil_cpu_util to core.c
  thermal: cpufreq_cooling: Reuse effective_cpu_util()

 drivers/thermal/cpufreq_cooling.c |  65 +++++-------------
 kernel/sched/core.c               | 106 +++++++++++++++++++++++++++++
 kernel/sched/cpufreq_schedutil.c  | 108 +-----------------------------
 kernel/sched/fair.c               |   6 +-
 kernel/sched/sched.h              |  20 ++----
 5 files changed, 130 insertions(+), 175 deletions(-)

-- 
2.25.0.rc1.19.g042ed3e048af