Re: [RFC][PATCH 4/7] sched: Replace sd_busy/nr_busy_cpus with sched_domain_shared

[Peter Zijlstra]

On Wed, May 11, 2016 at 02:33:45PM +0200, Peter Zijlstra wrote:
> Do we want to model this co-operative L3 slices thing as a sort of
> node-wide LLC for the purpose of the scheduler ?
> 
> the scheduler does try and scale things by 'assuming' LLC := node.

So this whole series is about selecting idle CPUs to run stuff on. With
the current PPC setup we would never consider placing a task outside of
its core.

If we were to add a node wide cache domain, the scheduler would look to
place a task across cores if there is an idle core to be had.

Would something like that be beneficial?