From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
Rik van Riel <riel@surriel.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
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@vger.kernel.org
Subject: [PATCH 6/7] sched/fair: Remove sgs->sum_weighted_load
Date: Mon, 27 May 2019 07:21:15 +0100 [thread overview]
Message-ID: <20190527062116.11512-7-dietmar.eggemann@arm.com> (raw)
In-Reply-To: <20190527062116.11512-1-dietmar.eggemann@arm.com>
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>
---
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 6:21 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 ` Dietmar Eggemann [this message]
2019-05-27 14:07 ` [PATCH 6/7] sched/fair: Remove sgs->sum_weighted_load Vincent Guittot
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
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