Collectl: An Advanced All-in-One Performance Monitoring Tool for Linux

collectl is a very nice feature rich command-line utility that can be used to collect performance data that describes the current system status. Unlike most of the other monitoring tools, collectl does not focus in a limited number of system metrics, instead it can gather information on many different types of system resources such as cpu, disk, memory, network, sockets, tcp, inodes, infiniband, lustre, memory, nfs, processes, quadrics, slabs and buddyinfo.