On Tue, Nov 22, 2016 at 12:23:53PM -0800, Tim Chen wrote: > We generalize the scheduler's asym packing to provide an ordering > of the cpu beyond just the cpu number. This allows the use of the > ASYM_PACKING scheduler machinery to move loads to preferred CPU in a > sched domain. The preference is defined with the cpu priority > given by arch_asym_cpu_priority(cpu). > > We also record the most preferred cpu in a sched group when > we build the cpu's capacity for fast lookup of preferred cpu > during load balancing. > > Co-developed-by: Peter Zijlstra (Intel) <[email protected]> > Signed-off-by: Tim Chen <[email protected]>
With the two little edits below: Acked-by: Peter Zijlstra (Intel) <[email protected]> > --- > include/linux/sched.h | 4 ++++ > kernel/sched/core.c | 15 ++++++++++++++ > kernel/sched/fair.c | 54 > +++++++++++++++++++++++++++++++++++---------------- > kernel/sched/sched.h | 6 ++++++ > 4 files changed, 62 insertions(+), 17 deletions(-) > > diff --git a/include/linux/sched.h b/include/linux/sched.h > index 348f51b..ca02475 100644 > --- a/include/linux/sched.h > +++ b/include/linux/sched.h > @@ -1057,6 +1057,10 @@ static inline int cpu_numa_flags(void) > } > #endif > > +int arch_asym_cpu_priority(int cpu); extern > +int arch_asym_max_cpu_and(const struct cpumask *mask1, > + const struct cpumask *mask2); > + And that needs to go too; that function no longer exists. > struct sched_domain_attr { > int relax_domain_level; > };
