GKrellM is an open source application for monitoring the status of various operating system components, such as CPU usage, memory usage, hard drive activity, network traffic, and system temperatures. It is a highly customizable application, allowing users to tailor the user interface and application features to their specific needs. GKrellM offers an array of features such as a graphical charting system, an alarm system, and support for multiple languages. Additionally, GKrellM runs on many operating systems, including Linux, FreeBSD, and Mac OS X. It is a popular choice among system administrators, enthusiasts, and gamers alike.
Discontinued The program seems to be no longer updated. The latest version, 3.0.0, released in April 2015, can still be downloaded from the official website, but it does not work on macOS 10.13.