Re: [PATCH v10 4/4] arm64: topology: Provide relative power numbers for cores

On Tue, Jan 14, 2014 at 01:43:10PM +0000, Mark Brown wrote:

The other option here is runtime tunables via sysfs or whatever which avoids baking numbers into the DT in the same way, though that is partly just a punt of the same problem to userspace. That's probably also more helpful to people doing the tuning since it can be tweaked dynamically.

One other thing on this which occurred to me later on: if we do want to make these values directly tunable we probably want to do that from the scheduler rather than individual architectures. These are scheduler interfaces and the issues which make tuning desirable are essentially architecture neutral ones.