Messages in this thread | | | Subject | Re: [RFC PATCH v2 3/3] sched/doc: Update the CPU capacity asymmetry bits | From | Randy Dunlap <> | Date | Wed, 28 Apr 2021 10:19:10 -0700 |
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On 4/28/21 2:32 AM, Beata Michalska wrote: > Update the documentation bits referring to capacity aware scheduling > with regards to newly introduced SD_ASYM_CPUCAPACITY_FULL shed_domain
sched_domain I guess.
> flag. > > Signed-off-by: Beata Michalska <beata.michalska@arm.com> > --- > Documentation/scheduler/sched-capacity.rst | 6 ++++-- > Documentation/scheduler/sched-energy.rst | 2 +- > 2 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/Documentation/scheduler/sched-capacity.rst b/Documentation/scheduler/sched-capacity.rst > index 9b7cbe4..92d16e7 100644 > --- a/Documentation/scheduler/sched-capacity.rst > +++ b/Documentation/scheduler/sched-capacity.rst > @@ -284,8 +284,10 @@ whether the system exhibits asymmetric CPU capacities. Should that be the > case: > > - The sched_asym_cpucapacity static key will be enabled. > -- The SD_ASYM_CPUCAPACITY flag will be set at the lowest sched_domain level that > - spans all unique CPU capacity values. > +- The SD_ASYM_CPUCAPACITY_FULL flag will be set at the lowest sched_domain > + level that spans all unique CPU capacity values. > +- The SD_ASYM_CPUCAPACITY flag will be set for any sched_domain that spans > + cpus with any range of asymmetry.
CPUs please.
> > The sched_asym_cpucapacity static key is intended to guard sections of code that > cater to asymmetric CPU capacity systems. Do note however that said key is > diff --git a/Documentation/scheduler/sched-energy.rst b/Documentation/scheduler/sched-energy.rst > index afe02d3..8fbce5e 100644 > --- a/Documentation/scheduler/sched-energy.rst > +++ b/Documentation/scheduler/sched-energy.rst > @@ -328,7 +328,7 @@ section lists these dependencies and provides hints as to how they can be met. > > As mentioned in the introduction, EAS is only supported on platforms with > asymmetric CPU topologies for now. This requirement is checked at run-time by > -looking for the presence of the SD_ASYM_CPUCAPACITY flag when the scheduling > +looking for the presence of the SD_ASYM_CPUCAPACITY_FULL flag when the scheduling > domains are built. > > See Documentation/scheduler/sched-capacity.rst for requirements to be met for this >
thanks. -- ~Randy
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