For power aware balancing, we care the sched domain/group's utilizations more than their load weight. So add: sd_lb_stats.sd_utils and sg_lb_stats.group_utils.
We want to know the sd capacity, so add: sd_lb_stats.sd_capacity. And want to know which group is busiest but still has free time to handle more tasks, so add: sd_lb_stats.group_leader. Signed-off-by: Alex Shi <alex....@intel.com> --- kernel/sched/fair.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b9a34ab..32b8a7b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4214,6 +4214,11 @@ struct sd_lb_stats { unsigned int busiest_group_weight; int group_imb; /* Is there imbalance in this sd */ + + /* Varibles of power awaring scheduling */ + unsigned int sd_utils; /* sum utilizations of this domain */ + unsigned long sd_capacity; /* capacity of this domain */ + struct sched_group *group_leader; /* Group which relieves group_min */ }; /* @@ -4229,6 +4234,7 @@ struct sg_lb_stats { unsigned long group_weight; int group_imb; /* Is there an imbalance in the group ? */ int group_has_capacity; /* Is there extra capacity in the group? */ + unsigned int group_utils; /* sum utilizations of group */ }; /** -- 1.7.12 -- 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/