people use 250 as the lower limit as it is a good trade off between power usage and speed for not quite asleep mode. From experimentation it has been empirically shown that the phone lags too much when coming out of 125MHz mode so 250 is generally used as the lower floor. From the chart above you can see the voltage differeance between 125 and 250 is very small and thus power savings are negligable. As far as I know the speed 'stops' are predefined.

The greatest risk of lowering the voltage profile is that the system will reboot under high stress. If this is the case power kernel will tell you when it reboots that there was a problem and your settings have not been applied (so you cannot brick your device with bad settings). If your device does reboot at a low voltage profile then just move 'up' a profile.

Lower voltages use lower power than lower frequencies:

power consumption = capacitance * frequency * voltage^2

i.e. while frequency will affect power consumption it is not a patch on how much voltage affects it (as power consumption is a function of the square of voltage).

Basically, frequency = little effect on power consumption, voltage = huge effect on power consumption.

So in conclusion, for max battery run the lowest voltage profile that works@ maximum of 805MHz with smart reflex enabled.


RIGHT epitath (I shall write the rest in comic sans as it is probably the only font epitath can understand in his twisted brain world of one way man mental)


That is chart plots the voltage at the given frequency stops for each of the voltage profiles (well duh). You could make the chart in 5 mins with excel? Well done, monkey want a 'nana?

You do not know what vi is? really? I mean really? I will just let that hang and speak for itself