2010/7/7 Arjan van de Ven <[email protected]>: > On 7/6/2010 8:39 AM, Carlos Hernan Prada Rojas wrote: >> Hi all. >> >> I would like to ask you, how can I calculate the energy consumption of >> a process? >> >> Does powertop provide any API to be used in a simple C program to do so? >> >> Thanks a lot. >> >> Regards >> >> Carlos Prada >> >> > > > this is a really hard question without an easy answer to be honest. > you can't measure this, the best one can do is make a very high level > model based on several inputs, > and then hope it's somewhat resembling reality. > (inputs like "how long does it run" "how often does it wake up" "does it > cause other activity" "does it keep devices busy" etc) > > I'd love to start building such a model, even if it's on somewhat > abstract hardware.... but it's not an easy thing to do. > The worst you can do is present a number, and then if you tune stuff for > that number, that the actual power/energy gets worse. > > _______________________________________________ > Power mailing list > [email protected] > http://www.bughost.org/mailman/listinfo/power >
Agree. Power consumption is not one process's business. It's difficult to build such model without whole system consideration. Will Huang _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
