Tweak and monitor kernel parameters. Depending on the device and kernel used, this includes: * CPU (Frequency, Governor) * I/O Scheduler * Kernel Samepage Merging * Low Memory Killer (Minfree settings) * Virtual Memory * Flash/Backup * Build prop Editor * Recovery (Flash, Wipe) * Init.d editor * Saving Profiles * and a lot more... Features which aren't supported by your device won't show up in the first place.