Btrfs Is Not Yet the Performance King

Posted by timothy on Thursday April 30, 2009 @06:40AM from the happy-churning dept.

Ashmash writes "Benchmarks of the Btrfs filesystem have been published by Phoronix that compare it to the XFS, EXT3, and EXT4 file-systems. In the end they conclude that this next-generation Linux filesystem is not yet the performance king. In a great number of the tests, the EXT4 filesystem that was designed to be an interim step to Btrfs actually performs much better than the unstable Btrfs, albeit Btrfs still has more advanced features. Fedora 11 even took longer to boot when using Btrfs than EXT3 or EXT4."

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Re:Stability, reliability by Cassini2 · 2009-04-30 06:52 · Score: 5, Informative

btrfs has several features that help prevent data loss, and in particular silent corruption of data on the disk. It is also handy to be able to take snapshots for backup purposes.
Ext3 and Ext4 are faster because they omit some of these features. There was recently some heated debate about ext4 and data loss, see the Slashdot discussion for more links.
With file systems, speed and data integrity are trade-offs.