Device Speed Test is a new tweak available in Cydia which tests the speed & the performance of your iOS device. It also tells you what should you do to speed up your device with simple ways.
You can get this app from Cydia under BigBoss repository for free, after launching the app, it will go in various different operations, if the speed is good you will get a green light, decent you will get a yellow one or very bad you will get a red one. To enjoy this app, your device must be jailbroken, you can follow our guide posted here to jailbreak your iOS device using Limera1n. So, what color have you got?