The Linux 3.0 Kernel With EXT4 & Btrfs

Written by Michael Larabel in Software on 24 June 2011 at 09:15 AM EDT. Page 4 of 4. 14 Comments.

When using the Threaded I/O Tester to test the random write performance with 16 threads of 128MB writes, EXT4 had a very slight advantage on the powerful Intel notebook with the high-performance solid-state drive. Running the slower Pentium M notebook with 5400RPM IDE drive, Btrfs was many times faster than EXT4.

When looking at the 8GB write performance using IOzone, the file-system performance was close for each notebook.

EXT4 did slightly better for both systems when it came to the 8GB read performance.

These results can also be found on via the 1106122-GR-1106118GR60 result file for those interested.

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Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via