diff options
| author |   Ricardo Neri <ricardo.neri-calderon@linux.intel.com> | 2021-09-10 18:18:16 -0700 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2021-10-05 15:52:02 +0200 |
| commit | 6025643596895695956c27119c6b0bfa40d8035b (patch) | |
| tree | 3e3c5d9b38f86e96d602eba0c2925b9c1d18fc13 /kernel/sched/fair.c | |
| parent | sched/topology: Introduce sched_group::flags (diff) | |
| download | linux-dev-6025643596895695956c27119c6b0bfa40d8035b.tar.xz linux-dev-6025643596895695956c27119c6b0bfa40d8035b.zip | |
sched/fair: Optimize checking for group_asym_packing
sched_asmy_prefer() always returns false when called on the local group. By
checking local_group, we can avoid additional checks and invoking
sched_asmy_prefer() when it is not needed. No functional changes are
introduced.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Len Brown <len.brown@intel.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210911011819.12184-4-ricardo.neri-calderon@linux.intel.com
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 71b30ef31110..e050b1d92efe 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8631,7 +8631,7 @@ static inline void update_sg_lb_stats(struct lb_env *env, } /* Check if dst CPU is idle and preferred to this group */ - if (env->sd->flags & SD_ASYM_PACKING && + if (!local_group && env->sd->flags & SD_ASYM_PACKING && env->idle != CPU_NOT_IDLE && sgs->sum_h_nr_running && sched_asym_prefer(env->dst_cpu, group->asym_prefer_cpu)) { |