On 7/27/20 8:28 AM, Phil Auld wrote: > On Mon, Jul 27, 2020 at 06:58:32AM -0400 Prarit Bhargava wrote: >> On 7/24/20 4:56 PM, GitLab Bridge on behalf of prauld wrote: >>> From: prauld on gitlab.com >>> >>> CONFIG_ENERGY_MODEL will help make the schedutil frequency governor >>> more accurate. This will be useful in the future. It also enables >>> the use of the energy aware scheduler. >>> >>> Signed-off-by: Phil Auld <pauld@xxxxxxxxxx> >> >> pauld, I was looking at this config the other day. I was wondering if it >> changes the existing default scheduler choice? >> > > It allows the use of Energy aware scheduling which is primarily (currently > only) for assymetric systems. It doesn't change the default scheduler classes. > We'll still get CFS be default with the option to do RT and Deadline as before. > > I don't think RHEL currently deals with assymetric CPU capacity yet. But that > may change. I wanted to get it enabled for ELN so that if/when we do need it > it will be there w/o potential kABI issues. > > Primarily, there is interest in making the schedutil frequency governor the > default and this relies on having the eneregy model built. Right now we use > the performance governor in RHEL but if schedutil gets to where it provides > the same performance while still being able to reduce power when less busy > then that could change. > > Just enabling this config should not change that. > > > Cheers, > Phil > > I can't remember if I acked this or not. In any case a second one won't do any harm. Acked-by: Prarit Bhargava <prarit@xxxxxxxxxx> P. _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx
