Re: [PATCH RESEND 0/3] Represent cluster topology and enable load balance between clusters

From: Peter Zijlstra
Date: Tue Oct 05 2021 - 07:04:00 EST


On Tue, Oct 05, 2021 at 10:15:39PM +1300, Barry Song wrote:

> > (also, all this stuff being replicated across arch/*/Kconfig seems
> > unfortunate)
>
> perhaps worth a separate patchset to do some cleanup so that SCHED_MC,
> SCHED_SMT etc
> won't be replicated in different architectures. Right now, this kind
> of Kconfig option is copied
> everywhere. I am seeing SCHED_SMT in all of
> arch/arm/Kconfig
> arch/arm64/Kconfig
> arch/ia64/Kconfig
> arch/mips/Kconfig
> arch/powerpc/Kconfig
> arch/s390/Kconfig
> arch/sparc/Kconfig
> arch/x86/Kconfig
> ...
>
> Is it a better way to move them to a common Kconfig and let the architectures to
> declare things like ARCH_HAVE_SMT?

Dunno, it's all a bit of a mess :/ I can't quickly see a sane
pattern there.