With the EXT4 file-system being marked as stable in the forthcoming Linux 2.6.28 kernel, and some Linux distributions potentially switching to it as an interim step until the btrfs file-system is ready, we decided it was time to benchmark this journaled file-system for ourselves. We ran a number of disk-centric Linux benchmarks along with several of our real-world tests from the Phoronix Test Suite to gauge how well the EXT4 file-system performance will be noticed by desktop users and computer gamers. We have compared these EXT4 results to the EXT3, XFS, and ReiserFS file-systems.