Gnu top
From wikinotes
Gnu variant of top command that displays live system resource usage.
See also bsd top.
Locations
~/.config/procps/toprc
config
Usage
Commandline
Interactive
f # configure sort/filters d # toggle display s # sort by this column x # colourize sort-column L # search for string & # next-match V # toggle process-tree (sorts alphabetically by name) W # saves current top config z # enable colours m # toggle mem stats/bars t # toggle cpu stats/bars 1 # show indv. cpus
Columns
Some key columns, and their descriptions.
VIRT # (kb) process's heap-size (reserved, and/or actively used) (important!) USED # (kb) actual used memory (ram/swap) RES # (kb) memory used (ram) SWAP # (kb) memory used (swap)