Linux 3.8 File-System Testing From A SATA 3.0 HDD
There isn't a huge difference between file-systems with the BlogBench read performance aside from ReiserFS being the distant loser.
JFS also had a strange performance lead over EXT4/XFS/Btrfs/ReiserFS for Dbench. The JFS file-system in this configuration is likely not syncing all of the data to the disk, which would explain the performance but is potentially putting the data's integrity at risk.
With multiple Dbench clients, Btrfs was much faster than EXT4, XFS, and ReiserFS.