diff options
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b9ee3dc4a1a6..859416724e5a 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2678,6 +2678,9 @@ static unsigned int __read_mostly sched_short_sleep_task_threshold = 2000 * NSEC_PER_USEC; unsigned int __read_mostly sysctl_sched_select_prev_cpu_us = 2000; +static unsigned int __read_mostly +sched_long_cpu_selection_threshold = 100 * NSEC_PER_MSEC; + unsigned int __read_mostly sysctl_sched_restrict_cluster_spill; void update_up_down_migrate(void) @@ -3455,6 +3458,7 @@ bias_to_prev_cpu(struct cpu_select_env *env, struct cluster_cpu_stats *stats) struct sched_cluster *cluster; if (env->boost_type != SCHED_BOOST_NONE || env->reason || + !task->ravg.mark_start || env->need_idle || !sched_short_sleep_task_threshold) return false; @@ -3463,6 +3467,10 @@ bias_to_prev_cpu(struct cpu_select_env *env, struct cluster_cpu_stats *stats) unlikely(!cpu_active(prev_cpu))) return false; + if (task->ravg.mark_start - task->last_cpu_selected_ts >= + sched_long_cpu_selection_threshold) + return false; + /* * This function should be used by task wake up path only as it's * assuming p->last_switch_out_ts as last sleep time. @@ -3604,6 +3612,7 @@ retry: if (stats.best_capacity_cpu >= 0) target = stats.best_capacity_cpu; } + p->last_cpu_selected_ts = sched_ktime_clock(); out: rcu_read_unlock(); |