Re: [RFC v01 1/3] PowerCap: Documentation

[Srinivas Pandruvada]

On 08/02/2013 05:10 PM, Joe Perches wrote:
> On Fri, 2013-08-02 at 11:08 -0700, Srinivas Pandruvada wrote:
> > Added power cap framework documentation. This explains the use of power capping framework,
> > sys-fs and programming interface.
> []
Didn't understand this comment.
> > +Power Zone Attributes
> > +=================================
> > +Monitoring attributes
> > +----------------------
> > +	
> > +energy_uj (rw): Current energy counter in micro-joules. Write to energy counter
> > +resets the counter to zero. If the counter can not be reset, then this attribute
> > +is read-only.
> > +
> > +max_energy_range_uj (ro): Range of the above energy counter in micro-joules.
> > +
> > +power_uw (rw): Current power counter in micro-watts. Write to this counter
> > +resets the counter to zero. If the counter can not be reset, then this attribute
> > +is read-only.
> > +max_power_range_uw (ro): Range of the above energy counter in micro-watts.
> > +
> > +It is possible that some domains can have both power and energy counters and
> > +ranges, but at least one is mandatory.
> Given that the ranges seem to be u64s, perhaps the
> lower bounds are too high.  Why not nano/pico/fempto
> watts/joules/seconds?
I think they are too small to realistically set a limits on power or 
measure. Let's see what others think.
>
Thanks,
Srinivas
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