Hi Tony, On 30 August 2011 10:51, Tony Mansson <tony.mans...@linaro.org> wrote: > Hello, > > On the topic of C-state statistics: > > For 11.09 there are BP:s to A) fix powertop for ARM and B) create an > Android app for running powertop in Android. By that I mean executing > a reconfigured but upstreamable powertop as a service and control it > from the app. > > I'd like input on usage patterns for powertop from all you PM experts > in order to design that app as useful as possible. I'd imagine that > the actual display (ncurses-based on other platforms) is cute and sure > we should have it, but is it really that useful? Isn't the most > important thing to get statistics between a starting and an ending > time while some test or use case is executed? >
Personally, I was using the --dump option for recording statistics during a specific period. But i'm not sure if it's always available on powertop 2.0 > So I am thinking that prio 1 is "tap to start/stop logging" and saving > the set of result vectors for each measurement cycle to a file that > can be taken out and processed off-line into a diagram or whatever. > > Other ideas? > The main problem with an android app is that you must have screen and backlight on to use/configure it. Could it be possible to have an option which start a record when android enters the early suspend state ( with a additional delay to let the system stabilize) ? That could be an interesting feature for what we call the low power use case. Vincent > /Tony > > > > On 30 August 2011 10:09, Daniel Lezcano <daniel.lezc...@linaro.org> wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> >> Hi, >> >> I did some simple cpuidle measurements and updated the wiki page. >> >> https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/Cpuset >> >> Let me know what do you think about the result. >> >> Is there a way to get the C-states statistics ? >> >> Mike, you mentioned you did a very similar cpuset configuration but you >> saw only a small improvement in term of power consumption, right ? Do >> you have an idea why ? >> >> Thanks >> -- Daniel >> >> - -- >> <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs >> >> Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | >> <http://twitter.com/#!/linaroorg> Twitter | >> <http://www.linaro.org/linaro-blog/> Blog >> >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG v1.4.11 (GNU/Linux) >> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ >> >> iQEcBAEBAgAGBQJOXJqyAAoJEAKBbMCpUGYAHS0H/RTpXf+/tZ4S2MD0ZDBLDdM0 >> h/aAiNAWU3xhAPnJBtIRt11YWuqlZcRYKALEu0xrgkSLpS46pQLwjF5jtGpkUIqT >> 8GwbrLfhEyguoFXKRtUvgTwirT8z20XMMQK9ScgSqITuZcwI/0NUXDyWrSqqlBKC >> EG65ihobv9eYEzb0voyohRCwALi9AQoxZOLWrDHGYY6GY5k2RsuUwzGEROkhnfrI >> OWZyvshib73sK0hHnlwq8LfXsX5RrFwj1kbO4a8+TacUj/co23NNA7QmHfRrLLu0 >> m9ghodqqyGYueRqGLPWhj/XrbcYac4AqcMTeQGwN7y9Qy+3c11QouYoMUFoD1Eo= >> =9EC9 >> -----END PGP SIGNATURE----- >> >> _______________________________________________ >> linaro-dev mailing list >> linaro-dev@lists.linaro.org >> http://lists.linaro.org/mailman/listinfo/linaro-dev >> > _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
