Monitor the use of CPU and RAM with Tinycore

This is an app then show you the continous using of processor speed and the RAM memory usage second by second.

Androids phone have the function to show you the memory usage, but you must necessarily have permissions of ROOT. Rolf Smith, developer of XDA community, have created an useful app and it will work on every Android version. Tinycore, free utility app of Android, will show you the memory usage and the CPU speed without the root permissions.
It was realized to not increase the battery consumption or to decrease the permormance of the smartphones, but it works only with "push" notifications and a bar on top of the digital clock.
Moreover, with the settings of the app, you can personalize the colour of the text notify and the positioning of the bar.
Click on THIS LINK if you want to download this utility.