Phoronix takes a look at the performance of Ubuntu 12.04 LTS "Precise Pangolin"
The benchmarks in this article are some straightforward tests done on the same HP EliteBook (Intel Core i5 2520M, 4GB RAM, Intel 160GB SSD, HD Graphics 3000) when comparing clean installs of Ubuntu 12.04.2, 12.04.3, and 12.04.4. Unfortunately the mirrors of the original Ubuntu 12.04 LTS release and the first point release have vanished, so the testing was limited to these three past point releases for the Linux distribution that originally shipped in 2012 and will be maintained through 2017.Ubuntu 12.04.4 LTS Performance Benchmarks
