From: Vincent Guittot <vincent.guittot@linaro.org>
To: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
Rik van Riel <riel@surriel.com>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Quentin Perret <quentin.perret@arm.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Patrick Bellasi <patrick.bellasi@arm.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 6/7] sched/fair: Remove sgs->sum_weighted_load
Date: Mon, 27 May 2019 16:07:02 +0200 [thread overview]
Message-ID: <CAKfTPtBcYVH=SsUUnJc-eQpdXD=KOQ3GMKRdTKSRaU-TiE6KwA@mail.gmail.com> (raw)
In-Reply-To: <20190527062116.11512-7-dietmar.eggemann@arm.com>
On Mon, 27 May 2019 at 08:21, Dietmar Eggemann <dietmar.eggemann@arm.com> wrote:
>
> Since sg_lb_stats::sum_weighted_load is now identical with
> sg_lb_stats::group_load remove it and replace its use case
> (calculating load per task) with the latter.
>
> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
FWIW
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
> ---
> kernel/sched/fair.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 88779c45e8e6..a33f196703a7 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -7580,7 +7580,6 @@ static unsigned long task_h_load(struct task_struct *p)
> struct sg_lb_stats {
> unsigned long avg_load; /*Avg load across the CPUs of the group */
> unsigned long group_load; /* Total load over the CPUs of the group */
> - unsigned long sum_weighted_load; /* Weighted load of group's tasks */
> unsigned long load_per_task;
> unsigned long group_capacity;
> unsigned long group_util; /* Total utilization of the group */
> @@ -7947,7 +7946,6 @@ static inline void update_sg_lb_stats(struct lb_env *env,
> sgs->nr_numa_running += rq->nr_numa_running;
> sgs->nr_preferred_running += rq->nr_preferred_running;
> #endif
> - sgs->sum_weighted_load += weighted_cpuload(rq);
> /*
> * No need to call idle_cpu() if nr_running is not 0
> */
> @@ -7966,7 +7964,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
> sgs->avg_load = (sgs->group_load*SCHED_CAPACITY_SCALE) / sgs->group_capacity;
>
> if (sgs->sum_nr_running)
> - sgs->load_per_task = sgs->sum_weighted_load / sgs->sum_nr_running;
> + sgs->load_per_task = sgs->group_load / sgs->sum_nr_running;
>
> sgs->group_weight = group->group_weight;
>
> --
> 2.17.1
>
next prev parent reply other threads:[~2019-05-27 14:07 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-27 6:21 [PATCH 0/7] sched: Remove per rq load array Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 1/7] sched: Remove rq->cpu_load[] update code Dietmar Eggemann
2019-05-27 16:09 ` Rik van Riel
2019-06-03 13:02 ` [tip:sched/core] sched/fair: Remove the " tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 2/7] sched/fair: Replace source_load() & target_load() w/ weighted_cpuload() Dietmar Eggemann
2019-05-27 16:09 ` Rik van Riel
2019-05-28 10:24 ` Dietmar Eggemann
2019-05-28 10:53 ` Peter Zijlstra
2019-06-03 13:02 ` [tip:sched/core] sched/fair: Replace source_load() & target_load() with weighted_cpuload() tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 3/7] sched/debug: Remove sd->*_idx range on sysctl Dietmar Eggemann
2019-05-27 16:10 ` Rik van Riel
2019-06-03 13:03 ` [tip:sched/core] " tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 4/7] sched: Remove rq->cpu_load[] Dietmar Eggemann
2019-05-27 16:10 ` Rik van Riel
2019-06-03 13:04 ` [tip:sched/core] sched/core: " tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 5/7] sched: Remove sd->*_idx Dietmar Eggemann
2019-05-27 16:12 ` Rik van Riel
2019-06-03 13:04 ` [tip:sched/core] sched/core: " tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 6/7] sched/fair: Remove sgs->sum_weighted_load Dietmar Eggemann
2019-05-27 14:07 ` Vincent Guittot [this message]
2019-05-27 16:13 ` Rik van Riel
2019-06-03 13:05 ` [tip:sched/core] " tip-bot for Dietmar Eggemann
2019-05-27 6:21 ` [PATCH 7/7] sched/fair: Rename weighted_cpuload() to cpu_load() Dietmar Eggemann
2019-05-27 13:31 ` Vincent Guittot
2019-05-27 16:24 ` Rik van Riel
2019-05-27 19:13 ` Peter Zijlstra
2019-06-18 12:23 ` Dietmar Eggemann
2019-06-25 8:29 ` [tip:sched/core] sched/fair: Rename weighted_cpuload() to cpu_runnable_load() tip-bot for Dietmar Eggemann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAKfTPtBcYVH=SsUUnJc-eQpdXD=KOQ3GMKRdTKSRaU-TiE6KwA@mail.gmail.com' \
--to=vincent.guittot@linaro.org \
--cc=dietmar.eggemann@arm.com \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=morten.rasmussen@arm.com \
--cc=patrick.bellasi@arm.com \
--cc=peterz@infradead.org \
--cc=quentin.perret@arm.com \
--cc=riel@surriel.com \
--cc=tglx@linutronix.de \
--cc=valentin.schneider@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).