On Sat, Sep 10, 2011 at 2:47 PM, Jim Graham <[email protected]> wrote: > So when > developing a live wallpaper, for example, and getting advice to check > its usage of RAM, CPU, and battery, there is no valid way of doing so, > and the advice is therefore equally invalid? Or is even an approximate > number on those valid?
Your previous question asked how other apps that report this data do it. That is only loosely tied to how you as a developer testing your own app on your own equipment would do it. What is workable for a developer in a lab is not necessarily something that is production-grade and should be foisted upon unsuspecting users. Unfortunately, there are too many lousy engineers who can't tell the difference, or their ego is yapping too loudly in their ears to just go use those techniques anyway, risks be damned. With respect to RAM, Ms. Hackborn's post on SO that I linked to previously will help you measure this, and much of her post is about developer tools (e.g., using adb). With respect to CPU, for any single device that you are holding in your hand, if you can run top or can get raw stuff out of /proc/, those should be valid. With respect to battery... well, that's a pain to measure. If you don't show up on the "battery blame screen" (usually off of Settings > About) after you've been running for many hours, users probably will not complain about your battery consumption. For more details than that, you either gotta shell out for a Qualcomm MDP (around $1,400), or try to get PowerTutor or the equivalent to work for you, or tear apart a phone and figure out where to hook up leads for a wattmeter, or something. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy _The Busy Coder's Guide to *Advanced* Android Development_ Version 2.0 Available! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
