Seeing that the development of the ext3 file system successor has started, and that Andrew Morton has released mm patch containing ext4 file system, I decided to run some simple benchmarks, even in this early stage of development.

Because the mm patch also contains Hans Reiser's reiser4 file system, I decided to run benchmarks against it, too, for a good measure. Let me once again remind that both ext4 and reiser4 are still in development, while ext3 has been in production for many years, so take all the results below with a grain of salt.