Re: [PATCH v2] sched/topology: Check average distances to remote packages

Peter Zijlstra
2026-02-25T16:49:27Z

On Wed, Feb 25, 2026 at 10:41:38AM -0600, Kyle Meyer wrote:
> On Wed, Feb 25, 2026 at 01:30:52PM +0100, Peter Zijlstra wrote:

> > The original case was for SNC-3, the above looks to be SNC-2. Does your
> > system also support SNC-3?
>
> We do not currently use SKUs that support SNC-3.
>
> That distance would be set to 12:
>
> node 0 1 2
> 0: 10 12 12
> 1: 12 10 12
> 2: 12 12 10
>
> That might be changed if there's actually a difference in distance.
>
> Distances to adjacent sockets, non-adjacent sockets, and different chassis would
> remain the same.

OK, excellent. So its just the Intel reference systems that are crazy.