Linked by Thom Holwerda on Wed 3rd Dec 2008 20:42 UTC, submitted by Michael
Benchmarks The choice of filesystems on Linux is vast, but most people will stick with their respective distributions' default choices, which will most likely be ext3, but you're free to use ReiserFS, XFS, or something else completely if you so desire. Things are about to change though, with btrfs just around the corner. To bridge the gap between now and btfrs, ext3 has been updated to ext4, which adds some interesting features like extents, which are already in use in most other popular file systems. Phoronix decided it was time to do some performance checking on ext4.
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Interesting, but odd...
by sbergman27 on Wed 3rd Dec 2008 23:44 UTC
sbergman27
Member since:
2005-07-24

The disk i/o benchmarks were certainly interesting, and worth reading the article to see. But when they started throwing lzma, bzip2, lame, video games, and other processor bound "benchmarks" at these filesystems, I went... "what"? They could have made something out of the video game benchmarks, maybe, by checking the time to start the game and load a level, rather than reporting the FPS. If the FPS is affected by the filesystem, its time to find a new gaming house, not a new filesystem!

Looks like ext4 closes the gap with XFS, or now beats it significantly, in all but that surprising 4GB random delete phase. Deletes used to be a real Achilles heal for XFS, and I know the Linux XFS devs put a lot of special effort into improving that situation. But since it is also slower than ext3 in this phase, I suspect something else is going on.

Beating XFS by 25-30% on the 8GB sequential read and 4GB sequential create phases is particularly notable, since large sequential reads and writes were major design goals for XFS.

And all that with the significant additional integrity guarantees that the default "data=ordered" mode (and, I believe, journal checksumming) provides over XFS. Impressive work by the ext4 guys, indeed.

Edited 2008-12-03 23:48 UTC

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