[v1] sched/balancing: Misc updates & cleanups

[PATCH 09/10] sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb_stats'

Posted by Ingo Molnar 1 year, 11 months ago

Make them easier to read.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
---
 kernel/sched/fair.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b567c0790f44..40b98e43d794 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9436,19 +9436,19 @@ static void update_blocked_averages(int cpu)
  * sg_lb_stats - stats of a sched_group required for load_balancing
  */
 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 avg_load;			/* Avg load across the CPUs of the group */
+	unsigned long group_load;		/* Total load over the CPUs of the group */
 	unsigned long group_capacity;
-	unsigned long group_util; /* Total utilization over the CPUs of the group */
-	unsigned long group_runnable; /* Total runnable time over the CPUs of the group */
-	unsigned int sum_nr_running; /* Nr of tasks running in the group */
-	unsigned int sum_h_nr_running; /* Nr of CFS tasks running in the group */
+	unsigned long group_util;		/* Total utilization over the CPUs of the group */
+	unsigned long group_runnable;		/* Total runnable time over the CPUs of the group */
+	unsigned int sum_nr_running;		/* Nr of tasks running in the group */
+	unsigned int sum_h_nr_running;		/* Nr of CFS tasks running in the group */
 	unsigned int idle_cpus;
 	unsigned int group_weight;
 	enum group_type group_type;
-	unsigned int group_asym_packing; /* Tasks should be moved to preferred CPU */
-	unsigned int group_smt_balance;  /* Task on busy SMT be moved */
-	unsigned long group_misfit_task_load; /* A CPU has a task too big for its capacity */
+	unsigned int group_asym_packing;	/* Tasks should be moved to preferred CPU */
+	unsigned int group_smt_balance;		/* Task on busy SMT be moved */
+	unsigned long group_misfit_task_load;	/* A CPU has a task too big for its capacity */
 #ifdef CONFIG_NUMA_BALANCING
 	unsigned int nr_numa_running;
 	unsigned int nr_preferred_running;
@@ -9460,15 +9460,15 @@ struct sg_lb_stats {
  *		 during load balancing.
  */
 struct sd_lb_stats {
-	struct sched_group *busiest;	/* Busiest group in this sd */
-	struct sched_group *local;	/* Local group in this sd */
-	unsigned long total_load;	/* Total load of all groups in sd */
-	unsigned long total_capacity;	/* Total capacity of all groups in sd */
-	unsigned long avg_load;	/* Average load across all groups in sd */
-	unsigned int prefer_sibling; /* tasks should go to sibling first */
+	struct sched_group *busiest;		/* Busiest group in this sd */
+	struct sched_group *local;		/* Local group in this sd */
+	unsigned long total_load;		/* Total load of all groups in sd */
+	unsigned long total_capacity;		/* Total capacity of all groups in sd */
+	unsigned long avg_load;			/* Average load across all groups in sd */
+	unsigned int prefer_sibling;		/* tasks should go to sibling first */
 
-	struct sg_lb_stats busiest_stat;/* Statistics of the busiest group */
-	struct sg_lb_stats local_stat;	/* Statistics of the local group */
+	struct sg_lb_stats busiest_stat;	/* Statistics of the busiest group */
+	struct sg_lb_stats local_stat;		/* Statistics of the local group */
 };
 
 static inline void init_sd_lb_stats(struct sd_lb_stats *sds)
-- 
2.40.1

Re: [PATCH 09/10] sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb_stats'

Posted by Vincent Guittot 1 year, 11 months ago

On Fri, 8 Mar 2024 at 11:59, Ingo Molnar <mingo@kernel.org> wrote:
>
> Make them easier to read.
>
> Signed-off-by: Ingo Molnar <mingo@kernel.org>
> Reviewed-by: Valentin Schneider <vschneid@redhat.com>
> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
> Cc: Vincent Guittot <vincent.guittot@linaro.org>

Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>

> ---
>  kernel/sched/fair.c | 34 +++++++++++++++++-----------------
>  1 file changed, 17 insertions(+), 17 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index b567c0790f44..40b98e43d794 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -9436,19 +9436,19 @@ static void update_blocked_averages(int cpu)
>   * sg_lb_stats - stats of a sched_group required for load_balancing
>   */
>  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 avg_load;                 /* Avg load across the CPUs of the group */
> +       unsigned long group_load;               /* Total load over the CPUs of the group */
>         unsigned long group_capacity;
> -       unsigned long group_util; /* Total utilization over the CPUs of the group */
> -       unsigned long group_runnable; /* Total runnable time over the CPUs of the group */
> -       unsigned int sum_nr_running; /* Nr of tasks running in the group */
> -       unsigned int sum_h_nr_running; /* Nr of CFS tasks running in the group */
> +       unsigned long group_util;               /* Total utilization over the CPUs of the group */
> +       unsigned long group_runnable;           /* Total runnable time over the CPUs of the group */
> +       unsigned int sum_nr_running;            /* Nr of tasks running in the group */
> +       unsigned int sum_h_nr_running;          /* Nr of CFS tasks running in the group */
>         unsigned int idle_cpus;
>         unsigned int group_weight;
>         enum group_type group_type;
> -       unsigned int group_asym_packing; /* Tasks should be moved to preferred CPU */
> -       unsigned int group_smt_balance;  /* Task on busy SMT be moved */
> -       unsigned long group_misfit_task_load; /* A CPU has a task too big for its capacity */
> +       unsigned int group_asym_packing;        /* Tasks should be moved to preferred CPU */
> +       unsigned int group_smt_balance;         /* Task on busy SMT be moved */
> +       unsigned long group_misfit_task_load;   /* A CPU has a task too big for its capacity */
>  #ifdef CONFIG_NUMA_BALANCING
>         unsigned int nr_numa_running;
>         unsigned int nr_preferred_running;
> @@ -9460,15 +9460,15 @@ struct sg_lb_stats {
>   *              during load balancing.
>   */
>  struct sd_lb_stats {
> -       struct sched_group *busiest;    /* Busiest group in this sd */
> -       struct sched_group *local;      /* Local group in this sd */
> -       unsigned long total_load;       /* Total load of all groups in sd */
> -       unsigned long total_capacity;   /* Total capacity of all groups in sd */
> -       unsigned long avg_load; /* Average load across all groups in sd */
> -       unsigned int prefer_sibling; /* tasks should go to sibling first */
> +       struct sched_group *busiest;            /* Busiest group in this sd */
> +       struct sched_group *local;              /* Local group in this sd */
> +       unsigned long total_load;               /* Total load of all groups in sd */
> +       unsigned long total_capacity;           /* Total capacity of all groups in sd */
> +       unsigned long avg_load;                 /* Average load across all groups in sd */
> +       unsigned int prefer_sibling;            /* tasks should go to sibling first */
>
> -       struct sg_lb_stats busiest_stat;/* Statistics of the busiest group */
> -       struct sg_lb_stats local_stat;  /* Statistics of the local group */
> +       struct sg_lb_stats busiest_stat;        /* Statistics of the busiest group */
> +       struct sg_lb_stats local_stat;          /* Statistics of the local group */
>  };
>
>  static inline void init_sd_lb_stats(struct sd_lb_stats *sds)
> --
> 2.40.1
>

[tip: sched/core] sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb_stats'

Posted by tip-bot2 for Ingo Molnar 1 year, 11 months ago

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     e492e1b0e0721f3929ef9d9708d029144b396dd7
Gitweb:        https://git.kernel.org/tip/e492e1b0e0721f3929ef9d9708d029144b396dd7
Author:        Ingo Molnar <mingo@kernel.org>
AuthorDate:    Fri, 08 Mar 2024 11:59:00 +01:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 12 Mar 2024 11:59:59 +01:00

sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb_stats'

Make them easier to read.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20240308105901.1096078-10-mingo@kernel.org
---
 kernel/sched/fair.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b567c07..40b98e4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9436,19 +9436,19 @@ static void update_blocked_averages(int cpu)
  * sg_lb_stats - stats of a sched_group required for load_balancing
  */
 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 avg_load;			/* Avg load across the CPUs of the group */
+	unsigned long group_load;		/* Total load over the CPUs of the group */
 	unsigned long group_capacity;
-	unsigned long group_util; /* Total utilization over the CPUs of the group */
-	unsigned long group_runnable; /* Total runnable time over the CPUs of the group */
-	unsigned int sum_nr_running; /* Nr of tasks running in the group */
-	unsigned int sum_h_nr_running; /* Nr of CFS tasks running in the group */
+	unsigned long group_util;		/* Total utilization over the CPUs of the group */
+	unsigned long group_runnable;		/* Total runnable time over the CPUs of the group */
+	unsigned int sum_nr_running;		/* Nr of tasks running in the group */
+	unsigned int sum_h_nr_running;		/* Nr of CFS tasks running in the group */
 	unsigned int idle_cpus;
 	unsigned int group_weight;
 	enum group_type group_type;
-	unsigned int group_asym_packing; /* Tasks should be moved to preferred CPU */
-	unsigned int group_smt_balance;  /* Task on busy SMT be moved */
-	unsigned long group_misfit_task_load; /* A CPU has a task too big for its capacity */
+	unsigned int group_asym_packing;	/* Tasks should be moved to preferred CPU */
+	unsigned int group_smt_balance;		/* Task on busy SMT be moved */
+	unsigned long group_misfit_task_load;	/* A CPU has a task too big for its capacity */
 #ifdef CONFIG_NUMA_BALANCING
 	unsigned int nr_numa_running;
 	unsigned int nr_preferred_running;
@@ -9460,15 +9460,15 @@ struct sg_lb_stats {
  *		 during load balancing.
  */
 struct sd_lb_stats {
-	struct sched_group *busiest;	/* Busiest group in this sd */
-	struct sched_group *local;	/* Local group in this sd */
-	unsigned long total_load;	/* Total load of all groups in sd */
-	unsigned long total_capacity;	/* Total capacity of all groups in sd */
-	unsigned long avg_load;	/* Average load across all groups in sd */
-	unsigned int prefer_sibling; /* tasks should go to sibling first */
-
-	struct sg_lb_stats busiest_stat;/* Statistics of the busiest group */
-	struct sg_lb_stats local_stat;	/* Statistics of the local group */
+	struct sched_group *busiest;		/* Busiest group in this sd */
+	struct sched_group *local;		/* Local group in this sd */
+	unsigned long total_load;		/* Total load of all groups in sd */
+	unsigned long total_capacity;		/* Total capacity of all groups in sd */
+	unsigned long avg_load;			/* Average load across all groups in sd */
+	unsigned int prefer_sibling;		/* tasks should go to sibling first */
+
+	struct sg_lb_stats busiest_stat;	/* Statistics of the busiest group */
+	struct sg_lb_stats local_stat;		/* Statistics of the local group */
 };
 
 static inline void init_sd_lb_stats(struct sd_lb_stats *sds)