Re: [PATCH 4/7] sched/fair: Avoid unnecessary balancing of asymmetric capacity groups

[Peter Zijlstra]

On Thu, Feb 15, 2018 at 04:20:51PM +0000, Morten Rasmussen wrote:
> On systems with asymmetric cpu capacities, a skewed load distribution
> might yield better throughput than balancing load per group capacity.
> For example, preferring high capacity cpus for compute intensive tasks
> leaving low capacity cpus idle rather than balancing the number of idle
> cpus across different cpu types. Instead, let load-balance back off if
> the busiest group isn't really overloaded.

I'm sorry. I just can't seem to make sense of that today. What?