A no-nonsense kernel tweak script for Linux and Android systems, backed by evidence.
# Another "kernel optimizer"?
No. Well, yes. However, a "kernel optimizer" is a poor way to put it. KTweak performs kernel adjustments based on facts and evidence, unlike other optimizers with poorly written or heavily obfuscated code.
* [NFS Injector](https://github.com/Magisk-Modules-Grave/nfsinjector) uses closed source, compiled binaries with various typos in the README. It also provides a "pro" version that costs money.
* [MAGNETAR](https://github.com/Magisk-Modules-Grave/MAGNETAR) also uses closed source, compiled binaries. I'd love to say more about this, but I can't even find out what the module even does.
* [FDE.AI](https://forum.xda-developers.com/apps/magisk/beta-feradroid-engine-v0-19-ultimate-t3284421) also uses closed source, compiled binaries with a paid variant.
* [LKT](https://github.com/Magisk-Modules-Grave/legendary_kernel_tweaks/blob/master/common/system.prop) sets random nonsensical build.props that don't even exist.
* [ZeetaTweaks](https://t.me/zeetaaprojbot) is a clone of KTweak with the values changed. As of the V11 zip, it disables essential system services, deletes files permanently from /data/data, kills perfd (which is the userspace boosting daemon), disables SELinux, disables fsync, and various other detrimental changes.
The following benchmarks were performed on a OnePlus 7 Pro running the stock kernel provided by the OEM on Android 10. **KTweak sacrifices throughput for latency**, since latency correlates to UI / UX smoothness. This explains the slight regression with the scheduler throughput.
### Scheduler throughput via `perf bench sched messaging` (lower is better)
- Stock: 0.331 seconds
- KTweak: 0.808 seconds
### Scheduler throughput via `perf bench sched pipe` (lower is better)
- Stock: 16.159 seconds
- KTweak: 18.599 seconds
# The Tweaks
Head over to the [script itself](ktweak) to learn what everything does. It is documented in the comments.
# Other Notes
You should know that on Android devices, KTweak applies after init finishes + Android mounts + 120 seconds in order to prevent Android's init from overwriting any values.
# Contact
You can find me on telegram at @tytydraco.
Feel free to email me at tylernij@gmail.com.
Join the releases channel at @ktweak, or the discussion channel at @ktweak_discussion.