Ubuntu vs. Fedora vs. openSUSE With An Intel Broadwell Ultrabook
With the FIO testing, openSUSE Tumbleweed had the fastest read performance over the EXT4-based Fedora and Ubuntu. While openSUSE uses Btrfs as its root file-system, XFS is for the home partition, which is where the tests are installed to ~/.phoronix-test-suite/.
OpenSUSE Tumbleweed also came out ahead in the Compile Bench compile test.
Ubuntu 15.04 meanwhile won with the initial create test of Compile Bench.