From: Alex Shi <[email protected]> For power aware balancing, we care the sched domain/group's utilization. So add: sd_lb_stats.sd_util and sg_lb_stats.group_util.
And want to know which group is busiest but still has capability to handle more tasks, so add: sd_lb_stats.group_leader Signed-off-by: Alex Shi <[email protected]> [Added CONFIG_SCHED_POWER switch to enable this patch] Signed-off-by: Preeti U Murthy <[email protected]> --- kernel/sched/fair.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 681ad06..3d6d081 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5593,6 +5593,9 @@ struct sg_lb_stats { unsigned int nr_numa_running; unsigned int nr_preferred_running; #endif +#ifdef CONFIG_SCHED_POWER + unsigned int group_util; /* sum utilization of group */ +#endif }; /* @@ -5608,6 +5611,12 @@ struct sd_lb_stats { struct sg_lb_stats busiest_stat;/* Statistics of the busiest group */ struct sg_lb_stats local_stat; /* Statistics of the local group */ + +#ifdef CONFIG_SCHED_POWER + /* Varibles of power aware scheduling */ + unsigned int sd_util; /* sum utilization of this domain */ + struct sched_group *group_leader; /* Group which relieves group_min */ +#endif }; static inline void init_sd_lb_stats(struct sd_lb_stats *sds) -- 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/
