For a number of tests, particularly performance tests, a decent amount of data is generated. Generating graphs from the data makes it easier to analyze the data, as opposed to simply looking at a wall of numbers. This is especially true if we decide at some point to use netperf's -D option, which allows for the display of interim results while netperf is running.

At the very least, the ability to draw line and radar graphs from sets of data would be very useful. Adding functionality to show multiple graphs side-by-side in a single image would also be very helpful in certain situations.