Unlike the JMeter format, The JUnit format supports sub-milllisecond accuracy in time values. Since many non-I/O bound benchmarks runs in under one millisecond, it would be nice if the graphs and tables showing performance results supported sub-millisecond accuracy. One way to implement this would be to look at all the timings in a given benchmark data set and pick a time resolution that would make sense for all those number (e.g. making sure 3+ significant digits).