Today I Learned - use nettop on macOS to see what's eating your network stack

One of my IBM colleagues drew my attention to nettop 

NAME

     nettop – Display updated information about the network

SYNOPSIS

     nettop [-ncd] [-m <mode>] [-t <type>] [-s <seconds>] [-p <process-name|pid>] [-n] [-l <samples>] [-L <samples>] [-P]

            [-j|k|J <column-name[,column-name]...>]

DESCRIPTION

     The nettop program displays a list of sockets or routes. The counts for network structures are updated periodically.

I've already started using this to see what Slack, Firefox etc. are doing, in terms of chatting away ....

Awesome!