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Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

EXT4, Btrfs, NILFS2 Performance Benchmarks

Michael Larabel

Published on 29 June 2009
Written by Michael Larabel
Page 7 of 7 - 38 Comments

With NetApp's PostMark benchmark ran through the Phoronix Test Suite, the EXT4 file-system had the most transactions per second followed by Btrfs and then EXT3. The EXT4 file-system had sustained 2777 transactions per second, there was 1785 transactions per second on average with Btrfs, but only 357 transactions per second with NILFS2. While NILFS2 was far behind the other new Linux file-systems, XFS was just behind that with a speed of 344 transactions per second.

Ending out our testing we used BlogBench to simulate the web server load of what would normally be experienced by a server hosting a blog. Btrfs was in first, just behind that was EXT4 followed by EXT3 and then NILFS2, and lastly was XFS.

We are not done with our EXT4 vs. Btrfs vs. NILFS2 file-system testing as we still have to run these new file-systems on a solid state disk, but as it stands right now, EXT4 is in much better shape when it comes to performance compared to Btrfs and NILFS2. However, EXT4 is just an incremental upgrade over EXT3 where as Btrfs and NILFS2 are completely original and their on-disk formats are not necessarily finalized. Additionally, all testing was done on each of the file-systems with their stock mount settings and the default Ubuntu Linux settings. Give it a few more kernel releases and we will likely see better performance out of NILFS2 and Btrfs. While these newer file-systems each have their own set of feature advantages, even XFS and EXT3 performed better than them in a few of the test profiles. Those interested in running their own Linux file-system comparisons can do so using the Phoronix Test Suite.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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