PowerTop runs on Linux and Solaris based systems and is used to find out the programs effecting your laptop’s battery life. It is a command line tool which determines the software applications that makes your laptop use more power than necessary. It has gained much popularity recently. Many free applications including Firefox have been patched to reduce their power consumption since its release. Lets see how we can install and use it in Ubuntu.
Open the terminal and run the following command to install it.
sudo apt-get install powertop
Once the installation is complete, run the following command in the terminal to launch it.
If you think that your laptop is not doing well with respect to the power management, then have a look at the results of the PowerTop, specially check Top causes for wakeups option. From here you will get an idea of the applications consuming more power and hence you will be able to identify the culprits . Please make sure that when you run PowerTop, your laptop must be running on the battery. Enjoy!