linux-kernel - Re: [PATCH v3 01/14] sched/core: uclamp: extend sched

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Message-ID: <d8a3d533-84df-bfc7-96ae-790141be4926@infradead.org>
Date:   Mon, 6 Aug 2018 09:50:20 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Patrick Bellasi <patrick.bellasi@....com>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Tejun Heo <tj@...nel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Paul Turner <pjt@...gle.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Todd Kjos <tkjos@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Steve Muckle <smuckle@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>
Subject: Re: [PATCH v3 01/14] sched/core: uclamp: extend sched_setattr to
 support utilization clamping

Hi,

On 08/06/2018 09:39 AM, Patrick Bellasi wrote:
> diff --git a/init/Kconfig b/init/Kconfig
> index 041f3a022122..1d45a6877d6f 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -583,6 +583,25 @@ config HAVE_UNSTABLE_SCHED_CLOCK
>  config GENERIC_SCHED_CLOCK
>  	bool
>  
> +menu "Scheduler features"
> +
> +config UCLAMP_TASK
> +	bool "Enable utilization clamping for RT/FAIR tasks"
> +	depends on CPU_FREQ_GOV_SCHEDUTIL
> +	default false

	default n
but just omit the line completely since "n" is already the default.

> +	help
> +	  This feature enables the scheduler to track the clamped utilization
> +	  of each CPU based on RUNNABLE tasks currently scheduled on that CPU.
> +
> +	  When this option is enabled, the user can specify a min and max CPU
> +          bandwidth which is allowed for a task.
> +	  The max bandwidth allows to clamp the maximum frequency a task can
> +	  use, while the min bandwidth allows to define a minimum frequency a
> +          task will always use.

Please clean up the indentation above to use one tab + 2 spaces on all lines.

> +
> +	  If in doubt, say N.
> +
> +endmenu


thanks,
-- 
~Randy