hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8LL9S -------------------------------- Signed-off-by: Hui Tang <tanghui20@huawei.com> --- include/linux/sched.h | 5 +++++ kernel/sched/debug.c | 4 ++++ kernel/sched/fair.c | 11 +++++++++-- 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index de8f02515715..479ee3cece5d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -543,6 +543,11 @@ struct sched_statistics { #ifdef CONFIG_SCHED_CORE u64 core_forceidle_sum; #endif + +#ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY + u64 nr_wakeups_preferred_cpus; + u64 nr_wakeups_force_preferred_cpus; +#endif #endif /* CONFIG_SCHEDSTATS */ } ____cacheline_aligned; diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 4c3d0d9f3db6..1fe9aefc7baf 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -1039,6 +1039,10 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, P_SCHEDSTAT(nr_wakeups_affine_attempts); P_SCHEDSTAT(nr_wakeups_passive); P_SCHEDSTAT(nr_wakeups_idle); +#ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY + P_SCHEDSTAT(nr_wakeups_preferred_cpus); + P_SCHEDSTAT(nr_wakeups_force_preferred_cpus); +#endif avg_atom = p->se.sum_exec_runtime; if (nr_switches) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 686da2f99f95..45b93abc933d 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8081,6 +8081,8 @@ static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, if (available_idle_cpu(cpu)) { rcu_read_unlock(); p->select_cpus = p->prefer_cpus; + if (sd_flag & SD_BALANCE_WAKE) + schedstat_inc(p->stats.nr_wakeups_preferred_cpus); return; } @@ -8090,8 +8092,11 @@ static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, rcu_read_unlock(); if (tg_capacity > cpumask_weight(p->prefer_cpus) && - util_avg_sum * 100 <= tg_capacity * sysctl_sched_util_low_pct) + util_avg_sum * 100 <= tg_capacity * sysctl_sched_util_low_pct) { p->select_cpus = p->prefer_cpus; + if (sd_flag & SD_BALANCE_WAKE) + schedstat_inc(p->stats.nr_wakeups_preferred_cpus); + } } #endif @@ -8191,8 +8196,10 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int wake_flags) rcu_read_unlock(); #ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY - if (!cpumask_test_cpu(new_cpu, p->select_cpus)) + if (!cpumask_test_cpu(new_cpu, p->select_cpus)) { new_cpu = idlest_cpu; + schedstat_inc(p->stats.nr_wakeups_force_preferred_cpus); + } #endif return new_cpu; } -- 2.34.1