[KERNEL][EOL][10][OneUI/LOS][N960F/FD/N] RZ Kernel for Samsung Galaxy Note 9 Exynos

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Da-BOSS

Senior Member
Apr 2, 2012
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Practically, overclocking is useless with 9810, and I'm against any overclocking recommendation. The CPU isn't battery friendly at all. Real world performance benchmarks showed what Samsung gave regarding maximum frequency handling on stock is optimal with this chipset. Anything higher than such will result in significant power bump, making it inefficiently biased to performance

As well about kernel reboots, well that's just bad backports done to the kernel. The developer should be aware and have solutions or fix that by himself

Sent from my SM-G955F using XDA Labs
It is not overclock.. it's what Samsung Exynos 9810 originally designed but Sammy missed up so much on scheduler scalings that they just limit the freq rather than fixing there own mistakes:rolleyes:

Zeus Kernel is not about using samsung work... it is about removing samsung work. ENTIRELY...
 

clustered

Senior Member
Oct 4, 2005
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It is not overclock.. it's what Samsung Exynos 9810 originally designed but Sammy missed up so much on scheduler scalings that they just limit the freq rather than fixing there own mistakes:rolleyes:

Zeus Kernel is not about using samsung work... it is about removing samsung work. ENTIRELY...

Stable version of Zeus Kernel not stable at all... screen hot and battery like drinking water..
 
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vishnu vijay

Senior Member
Dec 16, 2009
330
114
Sharjah
Currently on this kernel & superstable Rom. (n960n)
Just waiting for one battery cycle to check how it fares.
So far so good.
Thanks

#edit

This is the most battery I've ever got from any Rom Kernel combination.
Thanks OP
 
Last edited:

N2Overwatch

Member
Nov 8, 2017
10
0
Do you consider on adding undervolting cpu / gpu or even battery charging speed modifications feature? I think its good to have undervolting feature especially on exynos devices. I dont mind running slightly lower clock speed with -200mV reduction unless performance hit was noticeable.
 

remilia15

Senior Member
Jan 1, 2017
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Do you consider on adding undervolting cpu / gpu or even battery charging speed modifications feature? I think its good to have undervolting feature especially on exynos devices. I dont mind running slightly lower clock speed with -200mV reduction unless performance hit was noticeable.

To be honest, a 100mV undervolt is pretty much impossible. Last time I tried undervolting just 75mV and the result was horrible: wrong CPU thermal even though nothing related to it was touched
Also, anything further than that, at least with my ASV configuration, will freeze the device badly

About charger mods: just one word - NO
I don't want a mini explosive device in my pocket nor anyone
 

ACC18

Senior Member
Dec 7, 2014
113
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Xiaomi Redmi 4X
Xiaomi Redmi 5
To be honest, a 100mV undervolt is pretty much impossible. Last time I tried undervolting just 75mV and the result was horrible: wrong CPU thermal even though nothing related to it was touched
Also, anything further than that, at least with my ASV configuration, will freeze the device badly

About charger mods: just one word - NO
I don't want a mini explosive device in my pocket nor anyone

How about updating the kernel? It still initial release for 2 months:crying:
 

remilia15

Senior Member
Jan 1, 2017
362
1,621
20
/dev/ram
Second public build is coming, and this will be the final build of the kernel project!
We have been going through lots of ups and downs in the testing group, so here are the results

Changes:
  • Fixes zram on boot
  • Adapted a new kernel scheduler, supporting 32/64-bit task scheduling
  • Critical scheduler performance fixes
  • Adapted newer vendor support

As this is the final build of the whole kernel project, I'd like to say thank you to all supporters/developers who helped me improving the kernel. The whole project hasn't lasted long, but it was a great time. This and the RZ Kernel project for Exynos 8895 will also be abandoned, unfortunately

Once again, thank you for all your support!
 
Last edited:

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  • 16
    Code:
    #include 
    /*
    * Your warranty is now void.
    *
    * I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or you getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this kernel
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at me for messing up your device, I will laugh at you.*/

    RZ Kernel aims for as stock experience as possible. It is made from Samsung's stock kernel with stability updates thanks to great guys who made ELS (exynos-linux-stable) branch
    It also attempts to increase overall multitasking performance while maintaining good battery life with proper settings

    Features
    • Adapted new Samsung EMS scheduler from Samsung 4.14 kernel (with 16ms PELT)
    • Gaming optimizations (reduce heat while maintaining performance stability)
    • Disabled battery-hogging WAKELOCKS
    • WireGuard and DriveDroid support
    • Security patch fixes adapted

    Thanks to corsicanu for helping me with initial kernel support

    XDA:DevDB Information
    RZ Kernel, Kernel for the Samsung Galaxy Note 9

    Contributors
    remilia15
    Source Code: https://github.com/diepquynh/android_kernel_samsung_universal9810

    Kernel Special Features:

    Version Information
    Status: Testing

    Created 2020-04-11
    Last Updated 2020-08-27
    6
    Notices and Q&A

    • The kernel is based on tw10-android-4.9-q branch of ELS, which is currently at stable state from my experience
    • Other related features of the kernel were picked from other sources. Credits belong to the owner
    • The kernel's energy costs table is remade in favor of new EMS scheduler

    Questions and Answers (Q&A)

    Q: AnTuTu scores please?
    A: This kernel isn't made for benchmarks so let's not talk about it

    Q: My phone gets hot while using this kernel?
    A: Short answer: It's your own issue, fix it yourself. Nobody makes a kernel just to burn your hands

    Long answer:
    • Install Termux app from Play Store
    • Enable screen rotation, open Termux in landspace mode
    • Type this command: su -c top -d 2
    • A list of processes will appear and refresh with 2s interval. Find which process consumes the most CPU usage with [%CPU] column and the package name in ARGS column. You should see the culprit of your issue

    Reminder: There is no such thing as "I have nothing in background but the phone still heats up". There definitely something happen and 99% of the time it's some of the rogue apps running in background

    Q: Can you add X Y Z feature to this kernel?
    A: I want to keep the kernel clean and simple. However, if the feature is really useful, I'll consider adapting it with proper performance check before releasing

    Q: Installation procedure?
    A: Simply flash the kernel with supported ROM and forget. No Magisk reinstallation needed
    6
    Second public build is coming, and this will be the final build of the kernel project!
    We have been going through lots of ups and downs in the testing group, so here are the results

    Changes:
    • Fixes zram on boot
    • Adapted a new kernel scheduler, supporting 32/64-bit task scheduling
    • Critical scheduler performance fixes
    • Adapted newer vendor support

    As this is the final build of the whole kernel project, I'd like to say thank you to all supporters/developers who helped me improving the kernel. The whole project hasn't lasted long, but it was a great time. This and the RZ Kernel project for Exynos 8895 will also be abandoned, unfortunately

    Once again, thank you for all your support!
    5
    Download link: Drive folder

    CHANGELOG:
    • 20200412: Initial release
    • 20200823 [FINAL]: Post #35
    3
    There's a lot more going on in Zeus kernel than a simple OC; lots and lots of tweaks that result in buttery smooth UI. It doesn't like my device at present, unfortunately. More people reporting success with Q version now but mine just reboots.

    Practically, overclocking is useless with 9810, and I'm against any overclocking recommendation. The CPU isn't battery friendly at all. Real world performance benchmarks showed what Samsung gave regarding maximum frequency handling on stock is optimal with this chipset. Anything higher than such will result in significant power bump, making it inefficiently biased to performance

    As well about kernel reboots, well that's just bad backports done to the kernel. The developer should be aware and have solutions or fix that by himself

    Sent from my SM-G955F using XDA Labs