Man page 9 : update_sd_pick_busiest

update_sd_pick_busiest - return 1 on busiest group

bool update_sd_pick_busiest(struct lb_env *  env , struct sd_lb_stats *  sds , struct sched_group *  sg , struct sg_lb_stats *  sgs );

env
    The load balancing environment.

sds
    sched_domain statistics

sg
    sched_group candidate to be checked for being the busiest

sgs
    sched_group statistics

Determine if sg is a busier group than the previously selected busiest group.