summaryrefslogtreecommitdiffstats
path: root/kernel/sched/fair.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/sched/fair.c')
-rw-r--r--kernel/sched/fair.c59
1 files changed, 30 insertions, 29 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 58684f684fa8..dc7d6527a282 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1062,9 +1062,9 @@ static void update_numa_stats(struct numa_stats *ns, int nid)
if (!cpus)
return;
- ns->load = (ns->load * SCHED_POWER_SCALE) / ns->compute_capacity;
+ ns->load = (ns->load * SCHED_CAPACITY_SCALE) / ns->compute_capacity;
ns->task_capacity =
- DIV_ROUND_CLOSEST(ns->compute_capacity, SCHED_POWER_SCALE);
+ DIV_ROUND_CLOSEST(ns->compute_capacity, SCHED_CAPACITY_SCALE);
ns->has_free_capacity = (ns->nr_running < ns->task_capacity);
}
@@ -4370,7 +4370,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
}
/* Adjust by relative CPU capacity of the group */
- avg_load = (avg_load * SCHED_POWER_SCALE) / group->sgc->capacity;
+ avg_load = (avg_load * SCHED_CAPACITY_SCALE) / group->sgc->capacity;
if (local_group) {
this_load = avg_load;
@@ -5609,10 +5609,10 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
static unsigned long default_scale_capacity(struct sched_domain *sd, int cpu)
{
- return SCHED_POWER_SCALE;
+ return SCHED_CAPACITY_SCALE;
}
-unsigned long __weak arch_scale_freq_power(struct sched_domain *sd, int cpu)
+unsigned long __weak arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
{
return default_scale_capacity(sd, cpu);
}
@@ -5627,7 +5627,7 @@ static unsigned long default_scale_smt_capacity(struct sched_domain *sd, int cpu
return smt_gain;
}
-unsigned long __weak arch_scale_smt_power(struct sched_domain *sd, int cpu)
+unsigned long __weak arch_scale_smt_capacity(struct sched_domain *sd, int cpu)
{
return default_scale_smt_capacity(sd, cpu);
}
@@ -5658,10 +5658,10 @@ static unsigned long scale_rt_capacity(int cpu)
available = total - avg;
}
- if (unlikely((s64)total < SCHED_POWER_SCALE))
- total = SCHED_POWER_SCALE;
+ if (unlikely((s64)total < SCHED_CAPACITY_SCALE))
+ total = SCHED_CAPACITY_SCALE;
- total >>= SCHED_POWER_SHIFT;
+ total >>= SCHED_CAPACITY_SHIFT;
return div_u64(available, total);
}
@@ -5669,29 +5669,29 @@ static unsigned long scale_rt_capacity(int cpu)
static void update_cpu_capacity(struct sched_domain *sd, int cpu)
{
unsigned long weight = sd->span_weight;
- unsigned long capacity = SCHED_POWER_SCALE;
+ unsigned long capacity = SCHED_CAPACITY_SCALE;
struct sched_group *sdg = sd->groups;
if ((sd->flags & SD_SHARE_CPUPOWER) && weight > 1) {
if (sched_feat(ARCH_POWER))
- capacity *= arch_scale_smt_power(sd, cpu);
+ capacity *= arch_scale_smt_capacity(sd, cpu);
else
capacity *= default_scale_smt_capacity(sd, cpu);
- capacity >>= SCHED_POWER_SHIFT;
+ capacity >>= SCHED_CAPACITY_SHIFT;
}
sdg->sgc->capacity_orig = capacity;
if (sched_feat(ARCH_POWER))
- capacity *= arch_scale_freq_power(sd, cpu);
+ capacity *= arch_scale_freq_capacity(sd, cpu);
else
capacity *= default_scale_capacity(sd, cpu);
- capacity >>= SCHED_POWER_SHIFT;
+ capacity >>= SCHED_CAPACITY_SHIFT;
capacity *= scale_rt_capacity(cpu);
- capacity >>= SCHED_POWER_SHIFT;
+ capacity >>= SCHED_CAPACITY_SHIFT;
if (!capacity)
capacity = 1;
@@ -5780,7 +5780,7 @@ static inline int
fix_small_capacity(struct sched_domain *sd, struct sched_group *group)
{
/*
- * Only siblings can have significantly less than SCHED_POWER_SCALE
+ * Only siblings can have significantly less than SCHED_CAPACITY_SCALE
*/
if (!(sd->flags & SD_SHARE_CPUPOWER))
return 0;
@@ -5845,11 +5845,11 @@ static inline int sg_capacity_factor(struct lb_env *env, struct sched_group *gro
cpus = group->group_weight;
/* smt := ceil(cpus / capacity), assumes: 1 < smt_capacity < 2 */
- smt = DIV_ROUND_UP(SCHED_POWER_SCALE * cpus, capacity_orig);
+ smt = DIV_ROUND_UP(SCHED_CAPACITY_SCALE * cpus, capacity_orig);
capacity_factor = cpus / smt; /* cores */
capacity_factor = min_t(unsigned,
- capacity_factor, DIV_ROUND_CLOSEST(capacity, SCHED_POWER_SCALE));
+ capacity_factor, DIV_ROUND_CLOSEST(capacity, SCHED_CAPACITY_SCALE));
if (!capacity_factor)
capacity_factor = fix_small_capacity(env->sd, group);
@@ -5895,7 +5895,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
/* Adjust by relative CPU capacity of the group */
sgs->group_capacity = group->sgc->capacity;
- sgs->avg_load = (sgs->group_load*SCHED_POWER_SCALE) / sgs->group_capacity;
+ 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;
@@ -6089,7 +6089,7 @@ static int check_asym_packing(struct lb_env *env, struct sd_lb_stats *sds)
env->imbalance = DIV_ROUND_CLOSEST(
sds->busiest_stat.avg_load * sds->busiest_stat.group_capacity,
- SCHED_POWER_SCALE);
+ SCHED_CAPACITY_SCALE);
return 1;
}
@@ -6118,7 +6118,7 @@ void fix_small_imbalance(struct lb_env *env, struct sd_lb_stats *sds)
imbn = 1;
scaled_busy_load_per_task =
- (busiest->load_per_task * SCHED_POWER_SCALE) /
+ (busiest->load_per_task * SCHED_CAPACITY_SCALE) /
busiest->group_capacity;
if (busiest->avg_load + scaled_busy_load_per_task >=
@@ -6137,7 +6137,7 @@ void fix_small_imbalance(struct lb_env *env, struct sd_lb_stats *sds)
min(busiest->load_per_task, busiest->avg_load);
capa_now += local->group_capacity *
min(local->load_per_task, local->avg_load);
- capa_now /= SCHED_POWER_SCALE;
+ capa_now /= SCHED_CAPACITY_SCALE;
/* Amount of load we'd subtract */
if (busiest->avg_load > scaled_busy_load_per_task) {
@@ -6148,16 +6148,16 @@ void fix_small_imbalance(struct lb_env *env, struct sd_lb_stats *sds)
/* Amount of load we'd add */
if (busiest->avg_load * busiest->group_capacity <
- busiest->load_per_task * SCHED_POWER_SCALE) {
+ busiest->load_per_task * SCHED_CAPACITY_SCALE) {
tmp = (busiest->avg_load * busiest->group_capacity) /
local->group_capacity;
} else {
- tmp = (busiest->load_per_task * SCHED_POWER_SCALE) /
+ tmp = (busiest->load_per_task * SCHED_CAPACITY_SCALE) /
local->group_capacity;
}
capa_move += local->group_capacity *
min(local->load_per_task, local->avg_load + tmp);
- capa_move /= SCHED_POWER_SCALE;
+ capa_move /= SCHED_CAPACITY_SCALE;
/* Move if we gain throughput */
if (capa_move > capa_now)
@@ -6207,7 +6207,7 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
load_above_capacity =
(busiest->sum_nr_running - busiest->group_capacity_factor);
- load_above_capacity *= (SCHED_LOAD_SCALE * SCHED_POWER_SCALE);
+ load_above_capacity *= (SCHED_LOAD_SCALE * SCHED_CAPACITY_SCALE);
load_above_capacity /= busiest->group_capacity;
}
@@ -6225,7 +6225,7 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
env->imbalance = min(
max_pull * busiest->group_capacity,
(sds->avg_load - local->avg_load) * local->group_capacity
- ) / SCHED_POWER_SCALE;
+ ) / SCHED_CAPACITY_SCALE;
/*
* if *imbalance is less than the average load per runnable task
@@ -6279,7 +6279,8 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
if (!sds.busiest || busiest->sum_nr_running == 0)
goto out_balanced;
- sds.avg_load = (SCHED_POWER_SCALE * sds.total_load) / sds.total_capacity;
+ sds.avg_load = (SCHED_CAPACITY_SCALE * sds.total_load)
+ / sds.total_capacity;
/*
* If the busiest group is imbalanced the below checks don't
@@ -6378,7 +6379,7 @@ static struct rq *find_busiest_queue(struct lb_env *env,
continue;
capacity = capacity_of(i);
- capacity_factor = DIV_ROUND_CLOSEST(capacity, SCHED_POWER_SCALE);
+ capacity_factor = DIV_ROUND_CLOSEST(capacity, SCHED_CAPACITY_SCALE);
if (!capacity_factor)
capacity_factor = fix_small_capacity(env->sd, group);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 23:43:40 +0000