diff options
Diffstat (limited to 'kernel/sched.c')
-rw-r--r-- | kernel/sched.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ecb4a47d4214..55112261027b 100644 --- a/kernel/sched.c +++ b/kernel/sched.c | |||
@@ -8523,9 +8523,15 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd) | |||
8523 | weight = cpumask_weight(sched_domain_span(sd)); | 8523 | weight = cpumask_weight(sched_domain_span(sd)); |
8524 | /* | 8524 | /* |
8525 | * SMT siblings share the power of a single core. | 8525 | * SMT siblings share the power of a single core. |
8526 | * Usually multiple threads get a better yield out of | ||
8527 | * that one core than a single thread would have, | ||
8528 | * reflect that in sd->smt_gain. | ||
8526 | */ | 8529 | */ |
8527 | if ((sd->flags & SD_SHARE_CPUPOWER) && weight > 1) | 8530 | if ((sd->flags & SD_SHARE_CPUPOWER) && weight > 1) { |
8531 | power *= sd->smt_gain; | ||
8528 | power /= weight; | 8532 | power /= weight; |
8533 | power >>= SCHED_LOAD_SHIFT; | ||
8534 | } | ||
8529 | sg_inc_cpu_power(sd->groups, power); | 8535 | sg_inc_cpu_power(sd->groups, power); |
8530 | return; | 8536 | return; |
8531 | } | 8537 | } |