What is the highest possible OC for this SoC CPU?

[Gormar]

I'm extremly curious as to RK3288 overclocking potential.

Could any one share his achivements on this field?

But to avoid fakes and false positives I preffer some more solid proof. Therefore I compiled program which compute constant Pi with given precision.

If you can please place your answers below with screenshot documenting at least three AGM iteration of pi_fftcs.elf program for 100000 numbers (./pi_fftcs 100000).
It don't require root but you have to place it inside file system where you can give it execute permission (i.e. not internal_sd or FAT partition).

Link to source code below. Compiled version attached.

[Gormar]

To encourage you I place here my false positive result and real "./pi_fftcs.elf 100000" execution times. Can anyone guess what is the real CPU frequency?

Also notice that for now you can't go higher than 2208MHz but I do not know where is the limit. Of course it realy doesn't matter for me but about this later.

[Gormar]

No one took the challenge . Even from UGOOS. They were bragging with 2.2GHz OC .

I updated first post with PIE compilation of this benchmarking tools.

Explanation from post #2.
0.84s is a time needed for one AGM iteration calculating 100000 numeric positions of PI on RK3288 with CPU clock set to 1920MHz (2208MHz is just wrongly displayed by system).