#5457 HIGH Update.: Should OHM save to a logfile?

[Zarro Boogs per Child]

#5457: Should OHM save to a logfile?
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  Reporter:  cjb                  |       Owner:  cjb     
      Type:  defect               |      Status:  new     
  Priority:  high                 |   Milestone:  Update.1
 Component:  power manager (OHM)  |     Version:          
Resolution:                       |    Keywords:  power   
  Verified:  0                    |    Blocking:          
 Blockedby:                       |  
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Comment(by gnu):

 The recorded data should also include the battery's couloumb counter,
 showing accurately how much energy has been used since the last update.
 To validate this info, we'd also need the charging status (voltage and
 amperage, positive or negative).  When the laptop runs on battery, we have
 a very accurate accounting of how much power the laptop is using, and the
 ohm logfiles should record it.  Not only to see what our "average" power
 consumption is (over time and over the population of laptops), but also to
 see how much variation there is across the population of laptops and
 batteries.  We will likely find some variations that can lead us to
 improvements, bringing every laptop toward higher battery capacity and
 lower power use.  The logs can also be used as benchmarks against which
 new releases can be tested; if a new release consumes significantly higher
 power for a given run of activities, it should be tuned to reverse that
 trend.

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Ticket URL: <http://dev.laptop.org/ticket/5457#comment:4>
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