On Thu, Mar 31, 2016 at 02:26:06PM -0700, Steve Muckle wrote: > > Can't, the way the wakeup path is constructed we would be sending the > > IPI way before we know about utilization. > > Sorry I thought we were referring to the possibility of sending an IPI > to just run the cpufreq driver rather than to conduct the whole wakeup > operation. > > My thinking was in CFS we get rid of the (cpu == smp_processor_id()) > condition for calling the cpufreq hook. > > The sched governor can then calculate utilization and frequency required > for cpu. If (cpu == smp_processor_id()), the update is processed > normally. If (cpu != smp_processor_id()) and the new frequency is higher > than cpu's Fcur, the sched gov IPIs cpu to continue running the update > operation. Otherwise, the update is dropped. > > Does that sound plausible?
Can be done I suppose..
