Recently on Mac Geek Gab we were discussing your router’s Quality of Service (QoS) settings and avoiding a scenario where everything else on your network slows down when one device is using up all of your bandwidth, a condition known as Buffer Bloat. One way to test that is to do a speed test while simultaneously watching a series of pings from the Terminal. Another is to simply use DSLReports’ speed test which does all of this for you! Check it out.
Test Your Router’s Ability to Handle Full Speeds and Avoid Buffer Bloat