What free bandwidth meter will give a graph of average bandwidth over a designated time frame ? In our workplace (a school), the Internet is often very slow. I know speakeasy.net will give a bandwidth speed at an instant in time, but bandwidth availability can change second by second depending on lots of things - what users are logged into our local network at any momement and what they are collectively doing bandwidth-wise, I imagine. Is there a free tool to tell me (and pass onto the network group) what our average bandwidth is over, say, a one hour period, that can assure me if the internet bandwidth allows usage of selected internet apps ?
...Or - what free bandwidth tool could help me understand whether the bandwidth speeds are sufficient for, say, viewing youtube videos or playing educational games, etc.