Simple system monitor for Linux with GUI written in C++ + Qt
qmake && make
If I ever return to this project, I will try to add some other platforms, or just Windows, for beginning. That's why this system monitor doesn't have such Linux specific information, as inodes, etc etc.
Also, maybe it would be good to add some hardware information - CPU core's temperatures, HDD health data and so on.
If you are interested in the project, your contributions and issues reports are welcomed!