maemo.org - Talk - View Single Post - before I overclock my n900

	Benson	2010-07-30 , 23:03
	Posts: 4,930 \| Thanked: 2,272 times \| Joined on Oct 2007	#9

Originally Posted by extendedping

My question is (I really want to preserve battery) would I be better off using the "ideal" setting? would this be better on my battery or worse? and if so what exact steps would I do differently in the code in step 7 above?

thanks.

OK, this partially overlaps with my previous post (we were typing at the same time...), but specifically:

ideal is lower voltages than lv, so you'll save battery right off -- if it's stable on your hardware, of course.

There's some dispute about the best minimum clock, but I'm convinced 500MHz is better, and in any case there's minimal difference in power, so IMO go with the 500MHz for better responsiveness regardless.

What you'd do different:

Code:

kernel-config load ideal
kernel-config limits 500 1000 #or whatever top speed...
kernel-config save myprofile1
#might want to test it thoroughly for stability before making it default, so do that now...
kernel-config default myprofile1

And I'd recommend taking the time to dial in individual voltages, like so:

Code:

kernel-config lock 500 30 360

Now test it -- exercise CPU, GPU, proceed if it's behaving right...

Code:

kernel-config lock 500 29 360

Note the second number -- voltage -- is decreased by 1. Test again, keep going till it goes awry, then add 2 to the last voltage level and write it down. Repeat for each frequency...

Code:

vi .kernel/myprofile1

Edit the FREQS="..." line with your new voltages, then

Code:

kernel-config default myprofile1

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