Real-World Benchmarks of Ext4
Ashmash writes "Phoronix has put out a fresh series of benchmarks that show the real world performance of the Ext4 file-system. They ran 19 tests on Fedora 10 with changing out their primary partition to test Ext3, Ext4, Xfs, and ReiserFS. The Linux 2.6.27 kernel was used with the latest file-system support. In the disk benchmarks like Bonnie++ Ext4 was a clear winner but with the real world tests the results were much tighter and Xfs also possessed many wins. They conclude though that Ext4 is a nice upgrade over Ext3 due to the new features and just not improved performance in a few areas, but its lifespan may be short with btrfs coming soon."
ReiserFS used to be the killer FS, but now it seems like it is stuck.
You're just confused. ReiserFS isn't the killer...its creator was.