On Tue, Jul 07, 2015 at 07:24:18PM +0100, Morten Rasmussen wrote: > With energy-aware scheduling enabled nohz_kick_needed() generates many > nohz idle-balance kicks which lead to nothing when multiple tasks get > packed on a single cpu to save energy. This causes unnecessary wake-ups > and hence wastes energy. Make these conditions depend on !energy_aware() > for now until the energy-aware nohz story gets sorted out.
The patch does slightly more; it also allows the kick if over utilized. But disabling this will allow getting 'stuck' in certain over loaded situations because we're not kicking the balancer. I think you need more justification for doing this. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
