Last week we shared that we were benchmarking Ubuntu's current and past LTS releases and began by running graphics benchmarks looking at how the proprietary drivers from the past compare to open-source drivers from the present, but now we have our assortment of system benchmarks to publish from the Long-Term Support releases of Ubuntu 6.06.1, Ubuntu 8.04.4, and an Ubuntu 10.04 development snapshot. In this article, we are looking at how Ubuntu's performance has evolved over the past four years.