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Subject[PATCH v3 03/12] sched: fix avg_load computation
Date
The computation of avg_load and avg_load_per_task should only takes into
account the number of cfs tasks. The non cfs task are already taken into
account by decreasing the cpu's capacity (cpu_power) and they will be tracked
in the CPU's utilization (group_utilization) of the next patches

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
---
kernel/sched/fair.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c6dba48..148b277 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4051,7 +4051,7 @@ static unsigned long capacity_of(int cpu)
static unsigned long cpu_avg_load_per_task(int cpu)
{
struct rq *rq = cpu_rq(cpu);
- unsigned long nr_running = ACCESS_ONCE(rq->nr_running);
+ unsigned long nr_running = ACCESS_ONCE(rq->cfs.h_nr_running);
unsigned long load_avg = rq->cfs.runnable_load_avg;

if (nr_running)
@@ -5865,7 +5865,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
load = source_load(i, load_idx);

sgs->group_load += load;
- sgs->sum_nr_running += rq->nr_running;
+ sgs->sum_nr_running += rq->cfs.h_nr_running;
#ifdef CONFIG_NUMA_BALANCING
sgs->nr_numa_running += rq->nr_numa_running;
sgs->nr_preferred_running += rq->nr_preferred_running;
--
1.9.1


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