Binary patched kernels for Pipo models

[rrileypm]

Wow, that's a bunch of choices.

I think a poll would be good...I just don't have time to set one up today. Can you give it a shot?

[herrjemineh]

And These kernels are working with any pipo rk3188 device, or is there any changes needed from m6 to m7 for instance?

Am Ende ist alles gut, und wenn nicht alles gut ist, dann ist es auch nicht das Ende...

[rrileypm]

I tried kernel_cpu1704h_gpu600h_ddr792_low_voltages (+25mV) on my M6 Pro and got a boot loop/freeze.

[Pipo2000]

I tried kernel_cpu1704h_gpu600h_ddr792_low_voltages (+25mV) on my M6 Pro and got a boot loop/freeze.

Apparently there is quite a lot of different hardware used.
I also tried this kernel and it passed all tests.

My personal experience with different kernels (I created myself some oc kernels with the script of phjanderson):
I don't know if anyone else remarked this but with my RAM clocked higher and higher, some apps starting to take some time to start.
SD BENCH, Nenamark2, Epic Citadel,... for instance:
[email protected]/GPU@600Mhz
RAM Stock(580Mhz) : instantly starts
RAM 667 : instantly starts
RAM 720 : a little delay
RAM 768 : a little longer delay
RAM 792 and RAM 800 : about 1/2 sec to 1 sec delay before app is started.

With CPU @ 1.7Ghz its getting worse.

CPU @ 1.8Ghz and RAM@667Mhz is for me the highest preformance kernel BUT: battery is drained FAST !
CPU @ 1.8GhZ and RAM clocked higher : instability !

Althow that all tests show that the RAM is indeed faster and RAM opperations are also faster at higher clock speeds, i cannot say that i feel this in daily usage.

So I went back to the CPU 1.7Ghz / GPU 600Mhz / RAM 720Mhz LOW VOLTAGE kernel.
For me its a good mix of speed,excellent stability and low battery drain.
All feels snappy, performance tests are OK, stability test are OK and tablet feels smoothly in daily use.
A whole day of testing,reading,watching video's on youtube,trying GPS, flashing different kernels etc and at the end of the day still got 18% left so for me that is absolutly OK !

Cudos to Giouncino for this kernel and a BIG thank you to Randy for the ROM !

[dark_lnt]

I tried kernel_cpu1704h_gpu600h_ddr792_low_voltages (+25mV) on my M6 Pro and got a boot loop/freeze.

The +50mV don't boot either.

The low voltage work, I will test the 1700 cpu one now!

[giouncino]

I tried kernel_cpu1704h_gpu600h_ddr792_low_voltages (+25mV) on my M6 Pro and got a boot loop/freeze.

you can try kernel_cpu1608h_gpu600h_ddr720_low_voltages (+25mV).
If runs stable you're having problems with RAM frequency/voltage, then you can run my script for +25voltage and install kernel_cpu1704h_gpu600h_ddr720_low_voltages (+25mV)that will be created (I did not include the binary kernel, but the script will do).

If not, try one of the +50mV. Don't worry, all of them (except 1800/798/xxx) can save battery power.


I'm using kernel_cpu1704h_gpu600h_ddr792_low_voltages since last week with NO problem (none application has crashed so far, and I did a LOT of stability tests).

So as PIPO2000 correctly suggest: the purity of the silicon of the hardware inside ours PIPO is very differerent one by one

[herrjemineh]

Again sorry for my stupidity, but i still didnt find out, whether this kefnel is only for the m6 or can i use it for my m7?

Am Ende ist alles gut, und wenn nicht alles gut ist, dann ist es auch nicht das Ende...

[dark_lnt]

Ok these are all my foundings for my personal device:

I can safely overclock the ram to 720 and 800 and have a fast and stable device. I think this is a very interesting tweak on it's own for many users!

The +50mV and kernels with 1800 cpu give me a bootloop.

None of the low voltage , or kernels with + 25mV are completely stable( freezes ans crashes under heavy load).
The kernel_cpu1704h_gpu600h_ddr792_low_voltages gave be an amazing antutu score of 19800 but made my device freeze on my second test when i tried geekbench. I can imagine this kernel to work great for certain people.

[sebastianabate]

Pipo M8Pro patched kernels

I made the same kernels that giouncino did with his scripts (THANKS TO HIM FOR THIS) from RileyROM 2.1 Wifi kernel (AND THANKS TO HIM FOR THIS TOO)


I tested the 3 1800h kernels and they are very unstable, they boot OK, but the wifi sometimes work and sometimes not, and the tablet freez when I run an Antutu test.


Now I'm using kernel_cpu1704h_gpu600h_ddr792_low_voltages.img and it works great, it passed Antutu test and Antutu stability test without a problem (I get 21476).


I did not test the rest of the kernels.

kernel_cpu1608h_gpu600h_ddr720_low_voltages.img.zip
kernel_cpu1608h_gpu600h_ddr720_low_voltages (+25mV).img.zip
kernel_cpu1608h_gpu600h_ddr720_low_voltages (+50mV).img.zip
kernel_cpu1704h_gpu600h_ddr792_low_voltages.img.zip
kernel_cpu1704h_gpu600h_ddr792_low_voltages (+25mV).img.zip
kernel_cpu1704h_gpu600h_ddr792_low_voltages (+50mV).img.zip
kernel_cpu1800h_gpu798h_ddr792_low_voltages.img.zip
kernel_cpu1800h_gpu798h_ddr792_low_voltages (+25mV).img.zip
kernel_cpu1800h_gpu798h_ddr792_low_voltages (+50mV).img.zip

[giouncino]

Again sorry for my stupidity, but i still didnt find out, whether this kefnel is only for the m6 or can i use it for my m7?

Am Ende ist alles gut, und wenn nicht alles gut ist, dann ist es auch nicht das Ende...

The binary files are for M6pro ONLY, but you can use the perl script with your stock kernel to generate the same configurations that you can install on your specific model.

It is very simple to use,

Under linux shell use the following command: ./ overclockomatic***.pl kernel.img

On windows:
1 - Install a perl compiler (you can use this http://www.activestate.com/activeperl/downloads )
2 - on a command prompt, go on the directory where you have previously copied the overclockomatic***.pl AND the kernel.img and type: overclockomatic***.pl kernel.img

Now, all the combination will be automatically generated

[claro966]

R: Binary patched kernels for Pipo models

Again sorry for my stupidity, but i still didnt find out, whether this kefnel is only for the m6 or can i use it for my m7?

Am Ende ist alles gut, und wenn nicht alles gut ist, dann ist es auch nicht das Ende...

These kernel from giouncino are for M6pro only.

Inviato dal mio C2 con Tapatalk 4

[giouncino]

CPU @ 1.8Ghz and RAM@667Mhz is for me the highest preformance kernel BUT: battery is drained FAST !
CPU @ 1.8GhZ and RAM clocked higher : instability !

This is very interesting...
It probably means that we have a very poor quality voltage regulators...
I
tested 1.8Ghz with ram clocked at 792 and was unstable.
About your test at 1.8Ghz and 667Mhz Which was the voltage you gave to the CPU?

[douglas]

So I went back to the CPU 1.7Ghz / GPU 600Mhz / RAM 720Mhz LOW VOLTAGE kernel.
For me its a good mix of speed,excellent stability and low battery drain.

Is this the same kernel that is bundled with Riley's 1.3a Rom? If not, could you please direct me to the link to download it? I am confused with all the different kernels and voltages...

[giouncino]

Is this the same kernel that is bundled with Riley's 1.3a Rom? If not, could you please direct me to the link to download it? I am confused with all the different kernels and voltages...

You can try the CPU 1.7Ghz / GPU 600Mhz / RAM 792Mhz LOW VOLTAGE and test if it works for you, Otherwise the CPU 1.7Ghz / GPU 600Mhz / RAM 720Mhz LOW VOLTAGE is present on my post #60 on page 3 of this thread (it is called "target").

Let me know if one of them is working for you. On my tablet both kernels are stable.

[Pipo2000]

This is very interesting...
It probably means that we have a very poor quality voltage regulators...
I
tested 1.8Ghz with ram clocked at 792 and was unstable.
About your test at 1.8Ghz and 667Mhz Which was the voltage you gave to the CPU?

I tried:
1.3V => not stable
1.35V => not stable
1.375V => stable (all tests finished properly)

Ram was always @ 667Mhz at 1.2V