diff options
| -rw-r--r-- | kernel/sched/fair.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d18e2c7b67e5..c00a8ae48a46 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7569,14 +7569,20 @@ static bool update_sd_pick_busiest(struct lb_env *env, if (sgs->avg_load <= busiest->avg_load) return false; + if (!(env->sd->flags & SD_ASYM_CPUCAPACITY)) + goto asym_packing; + /* - * Candiate sg has no more than one task per cpu and has higher - * per-cpu capacity. No reason to pull tasks to less capable cpus. + * Candidate sg has no more than one task per CPU and + * has higher per-CPU capacity. Migrating tasks to less + * capable CPUs may harm throughput. Maximize throughput, + * power/energy consequences are not considered. */ if (sgs->sum_nr_running <= sgs->group_weight && group_smaller_cpu_capacity(sds->local, sg)) return false; +asym_packing: /* This is the busiest node in its class. */ if (!(env->sd->flags & SD_ASYM_PACKING)) return true; |