Name
find_busiest_group —
Returns the busiest group within the sched_domain if there is an imbalance. If there isn't an imbalance, and the user has opted for power-savings, it returns a group whose CPUs can be put to idle by rebalancing those tasks elsewhere, if such a group exists.
Synopsis
struct sched_group * find_busiest_group ( | struct lb_env * env); |
Arguments
env
The load balancing environment.
Description
Also calculates the amount of weighted load which should be moved
to restore balance.
Return
- The busiest group if imbalance exists.
- If no imbalance and user has opted for power-savings balance,
return the least loaded group whose CPUs can be
put to idle by rebalancing its tasks onto our group.