From: Juri Lelli <juri.lelli@redhat.com>
To: Quentin Perret <quentin.perret@arm.com>
Cc: peterz@infradead.org, rjw@rjwysocki.net,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
gregkh@linuxfoundation.org, mingo@redhat.com,
dietmar.eggemann@arm.com, morten.rasmussen@arm.com,
chris.redpath@arm.com, patrick.bellasi@arm.com,
valentin.schneider@arm.com, vincent.guittot@linaro.org,
thara.gopinath@linaro.org, viresh.kumar@linaro.org,
tkjos@google.com, joel@joelfernandes.org, smuckle@google.com,
adharmap@codeaurora.org, skannan@codeaurora.org,
pkondeti@codeaurora.org, edubezval@gmail.com,
srinivas.pandruvada@linux.intel.com, currojerez@riseup.net,
javi.merino@kernel.org
Subject: Re: [PATCH v8 10/15] sched: Introduce a sysctl for Energy Aware Scheduling
Date: Tue, 16 Oct 2018 15:46:36 +0200 [thread overview]
Message-ID: <20181016134636.GE9130@localhost.localdomain> (raw)
In-Reply-To: <20181016133451.w2y3gwj2c56cvy5c@queper01-lin>
On 16/10/18 14:36, Quentin Perret wrote:
> Hi,
>
> On Tuesday 16 Oct 2018 at 14:50:58 (+0200), Juri Lelli wrote:
> > Hi,
> >
> > On 16/10/18 11:15, Quentin Perret wrote:
> >
> > [...]
> >
> > > diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> > > index cc02050fd0c4..481309a11174 100644
> > > --- a/kernel/sysctl.c
> > > +++ b/kernel/sysctl.c
> > > @@ -466,6 +466,17 @@ static struct ctl_table kern_table[] = {
> > > .extra1 = &one,
> > > },
> > > #endif
> > > +#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
> > > + {
> > > + .procname = "sched_energy_aware",
> > > + .data = &sysctl_sched_energy_aware,
> > > + .maxlen = sizeof(unsigned int),
> > > + .mode = 0644,
> > > + .proc_handler = sched_energy_aware_handler,
> > > + .extra1 = &zero,
> > > + .extra2 = &one,
> > > + },
> > > +#endif
> >
> > Doesn't this need to be documented in Documentation/sysctl/kernel.txt?
>
> Right, that'd be a good practice indeed. What do you think about the
> patch below ?
LGTM.
> > Also, do we want a kernel parameter as well to be able to disable this
> > at boot?
>
> Yeah, why not. But I guess we could always add that later if need be ?
Sure. Works with me.
Thanks,
- Juri
next prev parent reply other threads:[~2018-10-16 13:46 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 10:14 [PATCH v8 00/15] Energy Aware Scheduling Quentin Perret
2018-10-16 10:14 ` [PATCH v8 01/15] sched: Relocate arch_scale_cpu_capacity Quentin Perret
2018-10-16 10:15 ` [PATCH v8 02/15] sched/cpufreq: Prepare schedutil for Energy Aware Scheduling Quentin Perret
2018-10-16 10:15 ` [PATCH v8 03/15] PM: Introduce an Energy Model management framework Quentin Perret
2018-11-07 16:32 ` Vincent Guittot
2018-11-07 17:02 ` Quentin Perret
2018-11-07 18:02 ` Vincent Guittot
2018-10-16 10:15 ` [PATCH v8 04/15] PM / EM: Expose the Energy Model in sysfs Quentin Perret
2018-10-16 10:15 ` [PATCH v8 05/15] sched/topology: Reference the Energy Model of CPUs when available Quentin Perret
2018-10-16 10:15 ` [PATCH v8 06/15] sched/topology: Lowest CPU asymmetry sched_domain level pointer Quentin Perret
2018-10-16 10:15 ` [PATCH v8 07/15] sched/topology: Disable EAS on inappropriate platforms Quentin Perret
2018-10-16 10:15 ` [PATCH v8 08/15] sched/topology: Make Energy Aware Scheduling depend on schedutil Quentin Perret
2018-10-16 10:15 ` [PATCH v8 09/15] sched: Introduce sched_energy_present static key Quentin Perret
2018-10-16 10:15 ` [PATCH v8 10/15] sched: Introduce a sysctl for Energy Aware Scheduling Quentin Perret
2018-10-16 12:50 ` Juri Lelli
2018-10-16 13:36 ` Quentin Perret
2018-10-16 13:46 ` Juri Lelli [this message]
2018-10-16 10:15 ` [PATCH v8 11/15] sched/fair: Clean-up update_sg_lb_stats parameters Quentin Perret
2018-10-16 10:15 ` [PATCH v8 12/15] sched: Add over-utilization/tipping point indicator Quentin Perret
2018-10-16 10:15 ` [PATCH v8 13/15] sched/fair: Introduce an energy estimation helper function Quentin Perret
2018-10-16 10:15 ` [PATCH v8 14/15] sched/fair: Select an energy-efficient CPU on task wake-up Quentin Perret
2018-10-16 10:15 ` [PATCH v8 15/15] OPTIONAL: cpufreq: dt: Register an Energy Model Quentin Perret
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