[KERNEL] [9] A2N Kernel for Galaxy S8/S8+/Note8 Exynos [up to 10h SOT] [High-End] [2022.05.13]

[Ryujin96]

@pranil60

 

[Driieel]

its kinda too difficult to explain it, first download and extract android image kitchen from here https://forum.xda-developers.com/t/...kernel-ramdisk-win-android-linux-mac.2073775/ and extract the a2n kernel flashable zip with winrar and copy the boot.img from it and copy it to the android image kitchen folder. then you need to hit unpackimg.bat and it should create a folder "ramdisk" and "split_img", you need to go in the ramdisk folder and look for a file "default.prop" and open it with for example notepad++, then you need to look for everything what starts with "pm.dextop" and replace everything with the variable "speed" (apps are faster optimized on boot with duration of 10-30 mins) or "speed-profile" (apps will be optimized within 7 days when on charger) and if you got everything save the file and dont mind the error just hit save. reopen the file again to check if it saved the changes. if is everything right go back to the android image folder and hit repackimg.bat and it should create "image-new.img". delete the boot.img and rename the "image-new.img" to "boot.img". copy the new boot.img to the a2n folder and replace it with the old one. afterwards select everything and rightclick and select "add to archive" and it should open winrar. before making a archive, be sure you selected the archive format zip. choose also a nice archivename for example a2n_kernel_g950x_9.x_preXX_proppatch or a2n_kernel_g950x_9.x_DATE_proppatch ,then hit "OK" and it makes a new flashable zip. and done. move the zip file to your phone and flash it and flash magisk afterwards and be sure to clear dalvik cache and cache. but like i said the first boot for choosing everything on "speed" variable can take 10-30 or more, depends how much apps you have. hope this explains more

Thank's, Bro!

 

[Ryujin96]

Thank's, Bro!

Glad to help out!

 

[Driieel]

Uploaded pre2 build for stability test.

I will start testing now.

 

[Driieel]

I faced a random standby reboot on prev2, I will be going back to using 16.01

 

[mmxandy]

After flashing this kernel secure folder locks not working....

 

[Driieel]

@Ryujin96 When I get to the ''unpacking'' part in android kitchen this error happens. Do you know what it could be?

 

[Driieel]

@Ryujin96 When I get to the ''unpacking'' part in android kitchen this error happens. Do you know what it could be?

I did the procedure in another way. I downloaded ES FILE EXPLORER, gave root permission, went to the "default.prop" directory and made the changes you mentioned. I don't have that slowness anymore. It looks like it worked like that. I didn't change the "First" or the "boot", I was in doubt if I should. @Ryujin96

 

[Ryujin96]

@Ryujin96 When I get to the ''unpacking'' part in android kitchen this error happens. Do you know what it could be?

Tbh i dont know can be the file is corrupy or something?

I did the procedure in another way. I downloaded ES FILE EXPLORER, gave root permission, went to the "default.prop" directory and made the changes you mentioned. I don't have that slowness anymore. It looks like it worked like that. I didn't change the "First" or the "boot", I was in doubt if I should. @Ryujin96

Hmm, tbh i dont think it worked becus the file gets replaced with the one out of the /boot partition when you reboot the phone. Only way to change it is to flash a boot.img with a editted default.prop. anyway i attached a editted a2n kernel with a editted prop inside. If you get issues just flash the a2n kernel from ace his ftp

 

[ace2nutzer]

I've tested the following flags and they works very well:

dalvik.vm.usejitprofiles=false
pm.dexopt.first-boot=quicken
pm.dexopt.boot=quicken
pm.dexopt.install=speed
pm.dexopt.bg-dexopt=speed
pm.dexopt.ab-ota=quicken
pm.dexopt.inactive=speed
pm.dexopt.shared=speed

This will be the new default in next build.

 

[Driieel]

Tbh eu não sei pode ser o arquivo está corrompido ou algo assim?


Hmm, tbh eu não acho que funcionou porque o arquivo é substituído por um da partição /boot quando você reinicializa o telefone. A única maneira de alterá-lo é atualizar um boot.img com um default.prop editado. de qualquer forma eu anexei um kernel a2n editado com um prop editado dentro. Se você tiver problemas, apenas atualize o kernel a2n de ace seu ftp

It might have been a false positive then.

 

[Driieel]

Tbh eu não sei pode ser o arquivo está corrompido ou algo assim?


Hmm, tbh eu não acho que funcionou porque o arquivo é substituído por um da partição /boot quando você reinicializa o telefone. A única maneira de alterá-lo é atualizar um boot.img com um default.prop editado. de qualquer forma eu anexei um kernel a2n editado com um prop editado dentro. Se você tiver problemas, apenas atualize o kernel a2n de ace seu ftp

Could you make the official version 16.01? It's the most stable and best on my phone.

 

[Ryujin96]

I've tested the following flags and they works very well:

dalvik.vm.usejitprofiles=false
pm.dexopt.first-boot=quicken
pm.dexopt.boot=quicken
pm.dexopt.install=speed
pm.dexopt.bg-dexopt=speed
pm.dexopt.ab-ota=quicken
pm.dexopt.inactive=speed
pm.dexopt.shared=speed

This will be the new default in next build.

Alright, looking forward how that works

 

[Ryujin96]

Could you make the official version 16.01? It's the most stable and best on my phone.

Okay, on to it. ill let you know when i got it ready.

 

[Ryujin96]

@ up
Alright time to release the 22.01.16 official & pre1 and pre2 kernel builds with new default.prop variables what @ace2nutzer tested with and worked very well. thanks for looking and testing

if there issues ex with the flashable zips or getting random reboots let me know, anyway all three are tested and should work on your devices without issues guys

 

[Driieel]

@ acima
Tudo bem, hora de lançar as compilações do kernel oficial 22.01.16 e pre1 e pre2 com novas variáveis default.prop com as quais @ace2nutzer testou e funcionou muito bem. obrigado por olhar e testar

se houver problemas ex com os zips flashable ou obter reinicializações aleatórias, avise-me, de qualquer maneira, todos os três são testados e devem funcionar em seus dispositivos sem problemas, pessoal

Thank you for sharing with us!

 

[ace2nutzer]

OK guys, i've uploaded pre3 build !!

It can be safely used with the A2N app V. 4.0.
The only thing you need to do is to make sure RAM --> "swappiness" is set to "175". (This will be the new default in next version of the app.)

For non A2N Full users: swappiness default of "175" is already set in pre3 and future builds.

Note: in case of random reboot (even for the first time), please post last_kmsg, helps to make this awesome kernel more stable. In case of random soft-reboot you could post logcat, but i've to remember that soft-reboots are caused by the ROM and therefore those soft-reboots can't be fixed by kernel updates. But you can post anyway if you want me to look into it, just to have confirmation if it's ROM bug or not and following my suggestions.

 

[Driieel]

OK guys, i've uploaded pre3 build !!

It can be safely used with the A2N app V. 4.0.
The only thing you need to do is to make sure RAM --> "swappiness" is set to "175". (This will be the new default in next version of the app.)

For non A2N Full users: swappiness default of "175" is already set in pre3 and future builds.

Note: in case of random reboot (even for the first time), please post last_kmsg, helps to make this awesome kernel more stable. In case of random soft-reboot you could post logcat, but i've to remember that soft-reboots are caused by the ROM and therefore those soft-reboots can't be fixed by kernel updates. But you can post anyway if you want me to look into it, just to have confirmation if it's ROM bug or not and following my suggestions.

I'll test it, but I would die in version 16.01 quietly

 

[Ryujin96]

OK guys, i've uploaded pre3 build !!

It can be safely used with the A2N app V. 4.0.
The only thing you need to do is to make sure RAM --> "swappiness" is set to "175". (This will be the new default in next version of the app.)

For non A2N Full users: swappiness default of "175" is already set in pre3 and future builds.

Note: in case of random reboot (even for the first time), please post last_kmsg, helps to make this awesome kernel more stable. In case of random soft-reboot you could post logcat, but i've to remember that soft-reboots are caused by the ROM and therefore those soft-reboots can't be fixed by kernel updates. But you can post anyway if you want me to look into it, just to have confirmation if it's ROM bug or not and following my suggestions.

Hmm that explains why there are random reboots or soft reboots after a kernel updates lol besides that i dont have reboots anymore randomly, anyway gonna flash it soon

 

[Ryujin96]

@ace2nutzer i got a soft reboot with kernel pre3, but i dont know if it is becus a kernel update ot something in the rom or kernel what caused it.