Hi, ext Frantisek Dufka wrote: > True. But still seeing power consumption could help and having actual > current drawn from battery somewhere in /proc would be very useful in > many situations. > > Even if I agree with things you said I still think your response is > influenced by the fact that Nokia hides such values from us (either > because it is not possible due to current hw design or because it thinks > such information is sensitive). > > I had iPAQ 3870 and there was such value available. It helped me a lot > (both as user and programmer) to understand what is the cost of having > some features enabled (playing audio, brightness on higher level, > bluetooth communication, cpu busy, reading from card, ...). > > Things are not black and white. Maybe sometimes something doesn't need > to be done. If you know the costs you may avoid some features or try to > optimize its usage in your application. If you don't know the > consumption then you can't optimize (both as user and developer). > > Examples of such optimizations: > > It is worthwhile to implement caching network data to mmc card while > playing media (i.e. read playlist ahead as fast as possible from > network) or is streaming on demand good enough? > > Does the brightness consumes as much as I expect? > > How much do I save when turning volume down? > > Does black theme save power? AFAIK no (unless you mean switching the display off :)). Igor? > These were just examples and some of them may not be good but you should > still see the point. Yes, they are good points. Better tools are always needed. I'm just frustrated that people don't use the tools that are already available, both on desktop[1] and for the device. Even with the currency consumption meter you would still need top & strace to find out which process actually consumes the power. It's not necessary that the application developers themselves use the tools (they are busy developing their applications), but the (power :)) users can use these tools also. - Eero [1] E.g. gnome power manager was something horrible when I last straced it on Ubuntu, it was constantly polling... I later noticed that it was mentioned also on the powertop page.
