With this FREE program, you can do regular internet speed tests in the background. It logs all your data and enables you to see at a glance what your speeds are doing over the course of the hour/day/week/month etc. It will test your download & upload speeds your ping times, packet loss and jitter.
It will generate a CSV log file for all this data and also present you with a graphical representation. you can also create JPG`s of the graph & the manual results window. I have managed to get the memory usage down to approx < 2MB whilst in "sleep" mode (in the tray) so it has a very small footprint.