Install and Use nmon Tool To Monitor Linux Systems Performanceby nixCraft on August 5, 2012 ?? 17 comments?? LAST UPDATED October 3, 2012 in LinuxHow do I install nmon command under Linux operating systems to find out performance information for my CPU, memory, network, disk, virtual memory, top process and other part of my HP server running on Debian Linux or CentOS Linux 6.x amd64 bit server?