How to see top processes sorted by actual memory usage?

Question

I have a server with 12G of memory. A fragment of top is shown below:

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                              


        

Answer 1

List and Sort Processes by Memory Usage:

ps -e -orss=,args= | sort -b -k1,1n | pr -TW$COLUMNS