Saving power is one of the major concerns of the modern world. You see cities observing Earth Hours, studies showing how computers consume excess power when kept running and so on. Even if you would view it from your personal perspective, saving power can make your laptop batteries last longer and provide longer battery backup.

If you use Linux, there is an excellent tool that gives you loads of information about your computer’s power consumption as well as the software that is causing your battery to drain. Its called PowerTop.

PowerTop was originally developed by Intel and it lets you measure and explain your computer’s power consumption.

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