No-frills CPU Control: GO FASTER!
No-frills CPU Control is a tool you can use on your rooted  device to quickly set the CPU frequencies and governor to use.
It allows you to use the highest frequency your phone supports and gain some precious FPS in your preferred game, or go down to the lowest frequency and gain some more juice when your phone is sitting idle.
All of this without any memory footprint or services running in the background!
It has been reported working on a large number of rooted  devices: HTC Dream/G1, Magic, Desire, Desire HD, Nexus One, Incredible, Hero, Desire Z/G2, EVO 4G, Samsung Galaxy S, Galaxy SII, Galaxy Tab, Nexus S, ZTE Blade, Huavei Ideos U8150 and U8109, LG Optimus One, Optimus Dual/G2X, Optimus Black, Motorola Flipout, Droid 2 and Milestone, Acer Liquid A1, Sony Xperia X8, X10, W8, even Advent Vega, Archos 43 IT and Nook Color!
It does NOT work on Flytouch tablets, Zenithink zt180, HaiPad M7/Tabtech M7 or fake HTC clones. Sorry about that, but you knew what you were buying when you did… didn’t you?
Is your device supported? You need ROOT permissions and you’ll probably need to be running a CUSTOM ROM (an example is the famous CyanogenMod) with kernel frequency scaling enabled. If you are unsure… just install the app and see for yourself!
If you need a custom ROM for your phone, the best places to find one are XDA [http://forum.xda-developers.com], MoDaCo [http://android.modaco.com/] or similar forums.
Be wary of the frequencies you select! Your phone may lock or become unresponsive if it doesn’t like extreme values, but -hey- better safe than sorry: even though No-frills CPU Control allows you to choose if you want to apply the settings on boot, it comes with an extra “safety valve” too! If the device doesn’t shut down (or reboot) in a clean way, it will not apply the settings, avoiding those nasty boot-loops you may have had with other overclocking apps. Please keep in mind that apps like QuickBoot are as quick as they are unsafe…
– Easy GUI to set frequencies, governor and i/o scheduler
– “safety valve” to avoid boot-loops in case of unsafe settings (more info in the homepage)
– Stats screen to see the effective usage of frequencies