Merge "sched/fair: use tunable value for capacity margin checks" (50bf309d) · Commits · e / devices / android_kernel_oneplus_sm8150

kernel/sched/fair.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -7366,7 +7366,7 @@ static int wake_cap(struct task_struct *p, int cpu, int prev_cpu)
		bool __cpu_overutilized(int cpu, int delta)
		{
		return (capacity_orig_of(cpu) * 1024) <
		((cpu_util(cpu) + delta) * capacity_margin);
		((cpu_util(cpu) + delta) * sched_capacity_margin_up[cpu]);
		}

		bool cpu_overutilized(int cpu)
		@@ -7579,7 +7579,8 @@ static int find_energy_efficient_cpu(struct sched_domain *sd,

		spare = capacity_spare_wake(cpu_iter, p);

		if (spare * 1024 < capacity_margin * task_util(p))
		if (spare * 1024 < sched_capacity_margin_up[cpu_iter] *
		task_util(p))
		continue;

		/* Add CPU candidate */
		@@ -9285,7 +9286,8 @@ group_is_overloaded(struct lb_env env, struct sg_lb_stats sgs)
		static inline bool
		group_smaller_cpu_capacity(struct sched_group sg, struct sched_group ref)
		{
		return sg->sgc->min_capacity * capacity_margin <
		return sg->sgc->min_capacity *
		sched_capacity_margin_up[group_first_cpu(sg)] <
		ref->sgc->min_capacity * 1024;
		}

		@@ -9676,7 +9678,8 @@ static inline void update_sd_lb_stats(struct lb_env env, struct sd_lb_stats sd
		* needs to be done at the next sched domain level as well.
		*/
		if (lb_sd_parent(env->sd) &&
		sds->total_capacity * 1024 < sds->total_util * capacity_margin)
		sds->total_capacity * 1024 < sds->total_util *
		sched_capacity_margin_up[group_first_cpu(sds->local)])
		set_sd_overutilized(env->sd->parent);
		}