3C System Manager (root)

A simple app to tweak various kernel settings on your rooted Android device. Requires technical knowledge of Linux and Android.
★ Highly Configurable UI allows you to transform the app into something you really like.
★ Editing all kernel sysctl settings
★ Configuring entropy (random generator, please be careful as it uses CPU)
★ Setting SD read cache size, IO scheduler and syncing, when available
★ Configuring OOM memory limits, when available
★ Benchmark different SD read cache size for optimum performance
On custom kernels supporting it, you can configure:
★ Screen gamma settings
★ Sound output
★ Double-tap-to-wake
★ Fast-charge
★ Sweep-to-sleep
★ Battery level eXtender (maximum charging %)
★ Intelliplug
In-app purchase can be made to remove ads or unlock features.