This new field cpu_power_orig reflects the available capacity of a CPUs unlike the cpu_power which reflects the current capacity that can be altered by frequency and rt tasks.
Signed-off-by: Vincent Guittot <vincent.guit...@linaro.org> --- kernel/sched/core.c | 2 +- kernel/sched/fair.c | 1 + kernel/sched/sched.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 240aa83..686c56f 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6946,7 +6946,7 @@ void __init sched_init(void) #ifdef CONFIG_SMP rq->sd = NULL; rq->rd = NULL; - rq->cpu_power = SCHED_POWER_SCALE; + rq->cpu_power = rq->cpu_power_orig = SCHED_POWER_SCALE; rq->post_schedule = 0; rq->active_balance = 0; rq->next_balance = jiffies; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 6dc05f7..b3dc2b3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5675,6 +5675,7 @@ static void update_cpu_power(struct sched_domain *sd, int cpu) power >>= SCHED_POWER_SHIFT; + cpu_rq(cpu)->cpu_power_orig = power; sdg->sgp->power_orig = power; if (sched_feat(ARCH_POWER)) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 600e229..4c74014 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -568,6 +568,7 @@ struct rq { struct sched_domain *sd; unsigned long cpu_power; + unsigned long cpu_power_orig; unsigned char idle_balance; /* For active balancing */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/