Which Process is Eating Your Bandwidth Mac OS X

From SnOwy - Ed's Wiki Notebook

• start with iftop and look for the port that is most active (appears highest on list)
• in iftop, to visualize ports, type "p"-- this is developed with ncurses like "top".
• below, the grep filters against the port number 50816.

Tin:~ eddiema$ lsof | grep 50816
Xcode       516 eddiema   28u    IPv4 0x0ad65aec       0t0      TCP 172.21.18.103:50816->a72-246-43-64.deploy.akamaitechnologies.com:http (ESTABLISHED)
Tin:~ eddiema$ 

• it turns out it's xcode talking with akamaitechnologies.com-- a software distribution network-- xcode must have been getting an upgrade.
• it's actually documentation -- to turn it off, see here: Xcode - deactivate automatic updates (documentation)