The new CPU Spy Reloaded and was designed following Google's Material Design Guidelines to the core.

Features

★ View CPU state statistics
★ Wake lock detection (Root needed)
★ Crude detection of big.LITTLE cpus
★ View CPU information.
★ View Device information.
★ View GPU information.
★ View battery information.
★ View real time CPU clock speed
★ View the time (and %) your phone spent in deep sleep.
★ Ability to reset and reset CPU state information.
★ Ability to reset CPU state information when battery is full
★ Black and White themes (Pro only).

How to use

http://www.androidjoint.com/2015/07/20/how-to-use-cpu-spy-reloaded/

It's the perfect tool for debugging battery drains and device overheating. It will be a great addition to your power user arsenal. It's can be used to debug battery drains with new kernels and new ROMs.

Please note that wakelock detection will only work either on rooted devices with SELinux disabled permissive or absent OR devices with rooted with Chainfire SuperSu.

Useful links

Translators: https://cpuspyreloaded.oneskyapp.com
XDA thread: http://forum.xda-developers.com/android/apps-games/cpu-spy-reloaded-t3146698
Google Plus Page: https://plus.google.com/b/116803224437317487521
Google Plus Community: https://plus.google.com/communities/117205208934138827773