LinuxGazette has published an article that compares the various journaling file systems available in Linux. The comparisons are based on “real-world” tests, such as creating thousands of files, and then running “find” over them.

Not surprisingly, ext3 comes out the slowest in total time, with ext2 not far ahead. jfs, xfs, and reiserfs wind up very nearly tied for first, although reiserfs seems to use a lot more CPU than the other filesystems during the tests.

No data recovery testing, or disaster simulations such as power interruptions, were attempted.

The article includes dozens and dozens of graphs that can be used to get the idea about what various journaling filesystems available in Linux are capable of. The article also might give embedded Linux developers some ideas about how to test various filesystems according to the unique needs of their own projects.

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