Messages in this thread | | | Date | Fri, 02 Aug 2013 17:23:59 -0700 | From | Srinivas Pandruvada <> | Subject | Re: [RFC v01 1/3] PowerCap: Documentation |
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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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