linux-kernel - Re: [PATCH 4/4] omap: cpu: Power tracking support for cgroup cpuacct

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Date:	Wed, 19 May 2010 17:34:27 +0200
From:	Thomas Renninger <trenn@...e.de>
To:	Nishanth Menon <nm@...com>
Cc:	Mike Chan <mike@...roid.com>,
	"khilman@...prootsystems.com" <khilman@...prootsystems.com>,
	"menage@...gle.com" <menage@...gle.com>,
	"balbir@...ibm.com" <balbir@...ibm.com>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 4/4] omap: cpu: Power tracking support for cgroup cpuacct

On Wednesday 19 May 2010 15:11:03 Nishanth Menon wrote:
> Mike Chan had written, on 05/18/2010 08:30 PM, the following:
> > Specify new power field in struct omap_opp, which is
> > power exported in milliWatt.
...
> > +		totalpower += cpuacct_freq[i] * mpu_opps[i + 1].power;
...
> > +	unsigned long power; /* power consumed running at OPP in 
milliWatts */
> 
> this conflicts with the OPP layer implementation. this structure will 
> disappear for good.
Ah yes, another question:
The power variable in struct omap_opp never gets initialized
with a sane value, something is wrong...

     Thomas
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