I am currently analyzing webpages with webpagetest (private instance) through mobile emulation. I have tried to emulate network connectivity - bandwidth, latency and packet loss rate - and got result a bit different from my expectation.
Here is my question. How exactly do network connectivity values emulate actual request? Are those numbers just added to current network status of agent? Or does WPT set the agent’s actual network status as closely as the values of network connectivity? My experiment showed me that they are doing something, but I am wondering how exactly those numbers affect on actual network status.