| Date | Tue, 24 Mar 2015 14:56:13 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFCv3 PATCH 38/48] sched: Infrastructure to query if load balancing is energy-aware |
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On Wed, Feb 04, 2015 at 06:31:15PM +0000, Morten Rasmussen wrote: > From: Dietmar Eggemann <dietmar.eggemann@arm.com> > > Energy-aware load balancing should only happen if the ENERGY_AWARE feature > is turned on and the sched domain on which the load balancing is performed > on contains energy data. > There is also a need during a load balance action to be able to query if we > should continue to load balance energy-aware or if we reached the tipping > point which forces us to fall back to the conventional load balancing > functionality.
> @@ -7348,6 +7349,7 @@ static int load_balance(int this_cpu, struct rq *this_rq, > .cpus = cpus, > .fbq_type = all, > .tasks = LIST_HEAD_INIT(env.tasks), > + .use_ea = (energy_aware() && sd->groups->sge) ? true : false,
fwiw, no tipping point in that logic.
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