2008-01-25T00:54:54 Frank Ch. Eigler: > On Fri, Jan 25, 2008 at 01:45:28AM +0100, Ivan Krsti?? wrote: > > As an anecdote, I spend a non-trivial amount of time working in > > disconnected environments using battery power on my non-XO laptop, > > and I've been obtaining noticeable battery life gains by manually > > SIGSTOPping Firefox when not in use. [...] > > That's exactly the sort of heuristic that an XO power boss tool could > apply. A tool with such heuristics may well be easier to construct > than fixes for all of userspace.
I'm uncertain about heuristics for this problem. Ignoring the non-XO window env, suppose someone has installed firefox on their XO because they like to have dozens of tabs open and Browse doesn't do tabs. How is the heuristic going to tell the difference between someone switching activities because they aren't using Firefox any more, and someone switching to do something else while Firefox is getting on about a bunch of downloads over a slow pipe? I'm surely not claiming that this problem can't be solved well enough, but it's not immediately obvious to me how to chase it without planning on teachng the power boss about each and every app you install, and sometimes having to override default standing behavior when you're doing something different. But having power boss constantly jumping in your face asking for directions would be tedious, while having to remember to override a default whose normal behavior is invisible to allow exceptional "it's taking a long time, let's go do something else" sounds pretty unpleasant too. -Bennett
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