linux-kernel - Re: [PATCH] intel_pstate: track and export frequency residency stats via sysfs.

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Message-ID: <7546673.Ir6ttItgPU@vostro.rjw.lan>
Date:	Thu, 11 Sep 2014 02:04:44 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Anup Chenthamarakshan <anupc@...omium.org>
Cc:	Dirk Brandewie <dirk.brandewie@...il.com>,
	Sameer Nanda <snanda@...omium.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] intel_pstate: track and export frequency residency stats via sysfs.

On Wednesday, September 10, 2014 04:39:05 PM Anup Chenthamarakshan wrote:
> On Thu, Sep 11, 2014 at 12:49:48AM +0200, Rafael J. Wysocki wrote:
> > On Wednesday, September 10, 2014 03:15:08 PM Anup Chenthamarakshan wrote:
> > > 
> > > Tools like powertop and turbostat are not present by default on all systems,
> > > so it is not always possible to use them :(
> > 
> > Which systems are you referring to in particular?
> 
> We're testing on Chrome OS devices (Chromebooks).

How big of a deal is it to install the tools mentioned above on such a system?

At least turbostat is shipped with the kernel source.

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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