* [email protected] <[email protected]> [2015-05-27 15:04:28]:

> 
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index c47bf0dffb34..f655f2ad155d 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -1398,6 +1398,30 @@ static void task_numa_find_cpu(struct task_numa_env 
> *env,
>       }
>  }
>  
> +/* Only move tasks to a NUMA node less busy than the current node. */
> +static bool numa_has_capacity(struct task_numa_env *env)
> +{
> +     struct numa_stats *src = &env->src_stats;
> +     struct numa_stats *dst = &env->dst_stats;
> +
> +     if (src->has_free_capacity && !dst->has_free_capacity)
> +             return false;
> +
> +     /*
> +      * Only consider a task move if the source has a higher destination
> +      * than the destination, corrected for CPU capacity on each node.

In the above comment, did you mean source has higher load than the
destination?

> +      *
> +      *      src->load                dst->load
> +      * --------------------- vs ---------------------
> +      * src->compute_capacity    dst->compute_capacity
> +      */
> +     if (src->load * dst->compute_capacity >
> +         dst->load * src->compute_capacity)
> +             return true;
> +
> +     return false;
> +}
> +
> 

-- 
Thanks and Regards
Srikar Dronamraju

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to