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From: Peter Zijlstra <peterz@infradead.org>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Amit Kucheria <amit.kucheria@linaro.org>,
	Ingo Molnar <mingo@elte.hu>,
	Lists linaro-kernel <linaro-kernel@lists.linaro.org>,
	Linux PM list <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/3] sched: idle: Add sched balance option
Date: Mon, 28 Apr 2014 12:28:19 +0200	[thread overview]
Message-ID: <20140428102819.GG27561@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <535E28D0.7050502@linaro.org>

On Mon, Apr 28, 2014 at 12:09:20PM +0200, Daniel Lezcano wrote:
> I agree a numerical value is not flexible. But it sounds weird to put a
> scheduler option in the sysfs and maybe more options will follow.
> 
> I am wondering if we shouldn't create a new cgroup for 'energy' and put
> everything in there. So we will have more flexibility for extension and we
> will be able to create a group of tasks for performance and a group of tasks
> for energy saving.
> 
> Does it make sense ?

The old knobs used to live here:

-What:          /sys/devices/system/cpu/sched_mc_power_savings
-               /sys/devices/system/cpu/sched_smt_power_savings

Not entirely sure that's a fine place, but it has precedent.

  reply	other threads:[~2014-04-28 10:28 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-24 12:24 [PATCH 0/3] sched: idle: Provide the basis to integrate cpuidle Daniel Lezcano
2014-04-24 12:24 ` [PATCH 1/3] sched: idle: Encapsulate the code to compile it out Daniel Lezcano
2014-04-30 17:39   ` Nicolas Pitre
2014-04-24 12:24 ` [PATCH 2/3] sched: idle: Add sched balance option Daniel Lezcano
     [not found]   ` <CAP245DX9wewQFhcyGj5ZuNE7hHC4fRn90POC32HLF6ugja6nJg@mail.gmail.com>
2014-04-24 13:30     ` Daniel Lezcano
2014-04-25 10:54       ` Amit Kucheria
2014-04-25 11:46         ` Rafael J. Wysocki
2014-04-25 12:17           ` Daniel Lezcano
2014-04-25 13:20           ` Peter Zijlstra
2014-04-25 17:01             ` Daniel Lezcano
2014-04-25 18:43               ` Peter Zijlstra
2014-04-28 10:09                 ` Daniel Lezcano
2014-04-28 10:28                   ` Peter Zijlstra [this message]
2014-04-28 11:07                     ` Daniel Lezcano
2014-04-28 11:21                       ` Peter Zijlstra
2014-04-28 23:11                       ` Rafael J. Wysocki
2014-04-29 10:00                         ` Morten Rasmussen
2014-04-29 22:19                           ` Rafael J. Wysocki
2014-04-29 10:25                         ` Daniel Lezcano
2014-05-05  0:32                           ` Rafael J. Wysocki
2014-04-29  9:26                       ` Morten Rasmussen
2014-04-26  0:18             ` Rafael J. Wysocki
2014-04-26  6:17               ` Ingo Molnar
2014-04-27 13:23                 ` Rafael J. Wysocki
2014-04-29 10:50                   ` Morten Rasmussen
2014-04-29 22:02                     ` Rafael J. Wysocki
2014-04-26 10:55               ` Peter Zijlstra
2014-04-27 13:54                 ` Rafael J. Wysocki
2014-04-27 19:39                   ` Peter Zijlstra
2014-04-25 13:22         ` Peter Zijlstra
2014-04-24 12:24 ` [PATCH 3/3] sched: idle: Store the idle state the cpu is Daniel Lezcano
2014-04-24 16:16   ` Rafael J. Wysocki
2014-04-24 16:13 ` [PATCH 0/3] sched: idle: Provide the basis to integrate cpuidle Rafael J. Wysocki

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