KTweak
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 uses closed source, compiled binaries with various typos in the README. It also provides a "pro" version that costs money.
- 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 also uses closed source, compiled binaries with a paid variant.
- LKT sets random nonsensical build.props that don't even exist.
- ZeetaTweaks 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.
What's different about KTweak?
Unlike other "kernel optimizers", KTweak is:
- Entirely open source with no compiled components
- Concise, at less than 200 lines long
- Backed by benchmarks and evidence
- Designed by an experienced kernel developer
- Non-intrusive and completely systemless
Benchmarks
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 latency via schbench (lower is better)
-
Stock:
50.0th: 4052 75.0th: 14288 90.0th: 26848 95.0th: 32960 *99.0th: 45120 99.5th: 49856 99.9th: 59200 min=0, max=73600 -
KTweak:
50.0th: 1054 75.0th: 1790 90.0th: 2628 95.0th: 3836 *99.0th: 8880 99.5th: 11472 99.9th: 18080 min=0, max=32781
Synthmark Latencymark (lower is better)
- Stock: 10 / 12
- KTweak: 4 / 4
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 to learn what everything does. It is documented in the comments.
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.