Re: [PATCH 3/4] sched,numa: implement numa node level wake_affine

[Peter Zijlstra]

On Fri, Jun 23, 2017 at 12:55:29PM -0400, riel@xxxxxxxxxx wrote:
> From: Rik van Riel <riel@xxxxxxxxxx>
> 
> Since select_idle_sibling can place a task anywhere on a socket,
> comparing loads between individual CPU cores makes no real sense
> for deciding whether to do an affine wakeup across sockets, either.
> 
> Instead, compare the load between the sockets in a similar way the
> load balancer and the numa balancing code do.

This seems to assume LLC == NUMA, which isn't strictly so.