[PATCH RESEND 0/3] Represent cluster topology and enable load balance between clusters
Peter Zijlstra
peterz at infradead.org
Tue Oct 5 00:50:01 PDT 2021
On Fri, Oct 01, 2021 at 04:22:46PM -0700, Tim Chen wrote:
> On Fri, 2021-10-01 at 16:57 +0200, Peter Zijlstra wrote:
> > The one questino I have is, do we want default y?
>
> I also agree that default y is preferable.
I'll change at least the x86 one to:
default y
depends on SMP
> > The one nit I have is the Kconfig text, I'm not really sure that's
> > clarifying what a cluster is.
>
> Do you have a preference of a different name other than cluster?
> Or simply better documentation on what a cluster is for ARM64
> and x86 in Kconfig?
Yes, better wording as to what a cluster is. Currently the x86 and arm64
ones actually differ:
x86:
help
Cluster scheduler support improves the CPU scheduler's decision
making when dealing with machines that have clusters of CPUs
sharing L2 cache. If unsure say N here.
arm64:
help
Cluster scheduler support improves the CPU scheduler's decision
making when dealing with machines that have clusters(sharing internal
bus or sharing LLC cache tag). If unsure say N here.
(also, all this stuff being replicated across arch/*/Kconfig seems
unfortunate)
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