TLP 1.2 was released today after being in development for more than a year, and it brings support for NVMe, and removable drives like USB and IEEE1394 devices, support for multi queue I/O schedulers (blk-mq), and other significant enhancements. TLP is a command line advanced Linux power management tool that helps save laptop battery power. It's designed to install and forget about it, TLP taking care of everything automatically. TLP is highly configurable though, so you can tweak it to suit your specific needs, either to manual editing of its configuration file (/etc/default/tlp), or by using TLPUI, a third-party GUI for TLP.
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