Save High Resolution 15 Minute Timeframe Data For All Hosts
1. What is this feature & what is it designed for?
2. Is it useful? It seems to make the graph have a lot smaller points but it obscures a lot if you can see what I mean:

My goal is to see what's happening live like in DD-WRT, I can see which roommmates are gunking up the connection, which will allow me to more finely tune the QoS.