Support and General Use > Hardware

CPU Boost Counter

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Big D:
I'm a bit confused. What exactly does this boost thing do?

Thanks.

Llorean:
Okay:

Normally we run the CPU relatively slowly, to save battery. Some things this will be too slow for (for example, decoding music) so we run the CPU at its full speed (the fastest speed it's designed to safely  be run constantly at) for periods until all the work is caught up, and we get a little bit ahead (at least with music), then we slow it down to the slow speed again.

So this fast speed is called "boosted." We automatically go there when work needs to be done, then come back after. Setting the boost counter higher just means the CPU is always at "boosted." There's no real reason to do this other than a desire to drain your battery more quickly.

robin0800:

--- Quote ---There's no real reason to do this other than a desire to drain your battery more quickly
--- End quote ---

Why have it user adjustable at all?

Llorean:
You may notice it's in the Debug menu. The one that says "Keep Out". The one that's for Developers to tinker and test things? I think it should be rather obvious that it's not intended for common user adjustment...

(V)3@7Y:
Applications run a little faster while decoding music if it is "maxed out"
which brings me to a hypothetical question; if i happened to possess an old ipod or other DAP running rockbox, and i was wanting to boost the CPU to a much higher level (for whatever purpose), regardless of potential damage to the inner workings, how could i disable the limit on over clocking it? I have no real experience in compiling builds, but if it were simple enough, i would like to remove this. Just a thought... all be it destructive.

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