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Date: Sun, 8 Jun 2014 08:03:16 +0200 From: Henrik Austad <henrik@...tad.us> To: Morten Rasmussen <morten.rasmussen@....com> Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, peterz@...radead.org, mingo@...nel.org, rjw@...ysocki.net, vincent.guittot@...aro.org, daniel.lezcano@...aro.org, preeti@...ux.vnet.ibm.com, dietmar.eggemann@....com Subject: Re: [RFC PATCH 02/16] sched: Introduce CONFIG_SCHED_ENERGY On Fri, May 23, 2014 at 07:16:29PM +0100, Morten Rasmussen wrote: > The Energy-aware scheduler implementation is guarded by > CONFIG_SCHED_ENERGY. > > Signed-off-by: Dietmar Eggemann <dietmar.eggemann@....com> > Signed-off-by: Morten Rasmussen <morten.rasmussen@....com> > --- > arch/arm/Kconfig | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index ab438cb..bfc3a85 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig Is this going to be duplicate for each architecture enabling this? Why not make a kernel/Kconfig.energy and link to that from those architectures using it? > @@ -1926,6 +1926,11 @@ config XEN > help > Say Y if you want to run Linux in a Virtual Machine on Xen on ARM. > > +config SCHED_ENERGY > + bool "Energy-aware scheduling (EXPERIMENTAL)" > + help > + Highly experimental energy aware task scheduling. > + how about adding *slightly* more info here? :) (yes, yes, I know it's an RFC) """ Highly experimental energy aware task scheduling. This will allow the kernel to keep track of energy required for different capacity levels for a given CPU. That way, the scheduler can make more informed decisions as to where a newly woken task should be placed. Heterogenous platform will benefit the most from this option. Enabling this will add a significant overhead for a task-switch. If unsure, say N here. """ > endmenu > > menu "Boot options" > -- > 1.7.9.5 > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Henrik Austad -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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