I often use basic command line tools (vm/io/snmpstat, fiddle with /proc with cat/cut) and chart the results along the way, in realtime, with this little tool: h

I often use basic command line tools (vm/io/snmpstat, fiddle with /proc with cat/cut) and chart the results along the way, in realtime, with this little tool: http://freshmeat.net/projects/trend http://freshmeat.net/projects/trend