On Tue, Mar 15, 2016 at 08:36:57PM -0700, Steve Muckle wrote: > > Then again, maybe this knob will be part of the mythical > > power-vs-performance slider? > > Patrick Bellasi's schedtune series [0] (which I think is the referenced > mythical slider) aims to provide a more sophisticated interface for > tuning scheduler-driven frequency selection. In addition to a global > boost value it includes a cgroup controller as well for per-task tuning. > > I would definitely expect the margin/boost value to be modified at > runtime, for example if the battery is running low, or the user wants > 100% performance for a while, or the userspace framework wants to > temporarily tailor the performance level for a particular set of tasks, etc.
OK, so how about we start with it as a debug knob, and once we have experience and feel like it is indeed a useful runtime knob, we upgrade it to ABI. The problem with starting out as ABI is that its hard to take away again.
