Performance Monitoring

nmon is really handy as it lets you see lots of info in a single unified app.

sudo apt-get install nmon

nmon

Use the keyboard commands to toggle individual sections on and off:

‘t’ = Top-processes

‘m’ – Memory S

‘j’ = Filesystems

‘d’ or ‘D’ = Disks (capital D shows different measurements)

‘n’ = Network

‘V’ = Virtual Memory

‘r’ = Resource

‘N’ = NFS

‘k’ = kernel

‘.’ = only busy disks/procs

‘q’ = quit

There a good article on how to use it here.

Raspberry Pi Resources