XMM - Monitor Linux MM inactive/active lists graphically
This utility provides you with a neat X11 window to monitor memory utilization of your server or workstation. It is similar to the popular xmem utility but is IMHO slightly more appropriate for monitoring a modern Linux VM subsystem (2.4 kernel and up).
It gathers information from miscellaneous /proc virtual files and shows you a graphical representation of the current memory utilization as distributed to inactive & active page lists and kernel memory (which includes inode & dentry caches). Additionally, it shows you how much swap is used. Please check screenshots together with comments to learn more.