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From: Peter Zijlstra <peterz@infradead.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Steve Muckle <steve.muckle@linaro.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
	shreyas@linux.vnet.ibm.com, akshay.adiga@linux.vnet.ibm.com,
	linuxppc-dev@ozlabs.org
Subject: Re: [RFC PATCH] Increase in idle power with schedutil
Date: Mon, 23 May 2016 11:24:51 +0200	[thread overview]
Message-ID: <20160523092451.GF15728@worktop.ger.corp.intel.com> (raw)
In-Reply-To: <20160523090004.GA21186@red-moon>

On Mon, May 23, 2016 at 10:00:04AM +0100, Lorenzo Pieralisi wrote:
> It is also related to static leakage power that depends on the operating
> voltage (ie higher operating frequencies require higher voltage) so in a
> way scaling frequency before going idle may not be effective if voltage
> does not scale too in turn.

Sure, but the platform drivers 'know' all this and can make the right
decision.

  reply	other threads:[~2016-05-23  9:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-18 12:53 [RFC PATCH] Increase in idle power with schedutil Shilpasri G Bhat
2016-05-18 12:53 ` [RFC PATCH] cpufreq: powernv: Add fast_switch callback Shilpasri G Bhat
2016-05-18 21:22   ` Rafael J. Wysocki
2016-05-18 21:11 ` [RFC PATCH] Increase in idle power with schedutil Rafael J. Wysocki
2016-05-19 11:40   ` Peter Zijlstra
2016-05-19 14:30     ` Rafael J. Wysocki
2016-05-20 12:23     ` Shilpasri G Bhat
     [not found]     ` <201605201223.u4KCNWn9028105@mx0a-001b2d01.pphosted.com>
2016-05-22 10:39       ` Peter Zijlstra
2016-05-22 20:42         ` Steve Muckle
2016-05-23  9:00           ` Lorenzo Pieralisi
2016-05-23  9:24             ` Peter Zijlstra [this message]
2016-05-23  9:24           ` Peter Zijlstra

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