To learn more about what your system is doing, take a look at systat(1). For

example, to get various statistics related to virtual memory usage, process

scheduling, device interrupts, system name translation caching, and disk I/O,

enter the following:

systat -vmstat

Other values are icmp, icmp6, ifstat, iostat, ip, ip6, netstat, pigs, sctp,

swap, tcp, or zarc. You can switch between displays using : and exit

back to your shell by typing

:quit

-- Benedict Reuschling