Power monitoring on Android

[Mark Finkle]

Hi folks,

I have a Powertools rig attached to a Nexus 4. I could attempt to run some simple test on before/after situations. Given the lack of control the rigs offer, I'd only expect to see larger changes in power usage.

I saw mention of patches that *might* reduce power by 70% in some cases. I would hope I could see those changes.

Anyway, let me know,

Finkle

[Jonathan Hylands]

I can also do power testing on Z3C Aries running Android, if needed.

- Jon

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[Thomas Daede]

Same here (with b2g). My setup:

https://people.xiph.org/~tdaede/power/

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[Nicholas Nethercote]

Thank you all for the info. It's unfortunate that measurement on
Android is so difficult, given that it's one of the platforms that
stands to benefit the most from power consumption improvements.
(Measurements on desktop are much easier with tools like
tools/power/rapl which access the built-in Intel power estimates.)

The webpage from bug 1200028 might be an interesting test case -- once
the patches from bug 1203766 landed I saw reductions of almost 50% for
processor+memory power on Mac and Linux desktop (though Alice didn't
see any change in CPU utilization on Windows).

Nick