From: Johannes Linke <johannes.linke_at_gmx.de>
Date: Wed, 31 Dec 2008 14:46:37 +0100

Johannes Linke schrieb:
> I did some battery benchs, as kugel and some devs said they could
> help.....
>
> i did all with my sansa e280, r19396 and the default settings.
>
> 1. mp3 VBR ~192kbps, showing wps of cabbie v2: *22:28*, but its not
> important.
>
> 2. .ogg VBR ~256kbps, cabbiev2, showing the main menu: *19:51*
>
> 3. .ogg VBR ~256kbps, cabbiev2, showing the wps: *18:03*
>
> 4. .ogg VBR ~256kbps, showing the wps of FreeState (a complex wps). i
> added randomly 4 peakmeter tags to the .wps-file, in the wps 2
> peakmeters were shown: *16:51*
>
> 5. .ogg VBR ~256kbps, showing an empty wps: *19:53*
>
> 6 .ogg VBR ~256kbps, showing the crippled FreeState-wps from 4., but
> with http://www.rockbox.org/tracker/task/8523: *18:05*.
>
> in short: runtime with a menu shown: 20h, with the cabbiev2-wps: 18h,
> with a complex wps: 17h, the same wps with the patch: 18h, with a
> empty wps: again 20h as the menu.
>
>
> you see that showing a wps even when the backlight is off need power.
> a "quick and dirty"-fix could be switching to a menu when the
> backlight is off, switching back when its on again. but its not the
> prettiest solution :)
>
>
> i hope this helps you a bit in improving the runtime of the players.
> if the devs [and of course kugel ;)] think some more benchs with other
> themes, patches etc. could be helpful, feel free to mail me.
>
i now posted the results on
http://www.rockbox.org/twiki/bin/view/Main/SansaRuntime, with the
battery_bench-file. i changed the order of the tests. maybe someone is
interested in it
Received on 2008-12-31