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Reiser4 File-System Benchmarks With Linux 4.17

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  • Reiser4 File-System Benchmarks With Linux 4.17

    Phoronix: Reiser4 File-System Benchmarks With Linux 4.17

    It's been about three years since last carrying out any file-system performance benchmarks of Reiser4, but being curious how it stacks up against the current state of today's mainline Linux file-systems, here are some fresh performance tests of Reiser4 using the Linux 4.17 kernel. The Reiser4 performance was compared to Reiserfs, EXT4, Btrfs, XFS, and F2FS.

    http://www.phoronix.com/vr.php?view=26501

  • #2
    Looking at both the read and write BlogBench 1.0 tests I would bet there is something weird going on. EXT4 slowest at read and fast at write and ReiserFS vice vesa?

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    • #3
      And this for a SSD. I wouln't be surprised to see a completely different outcome with as HDD.

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      • #4
        Typo:

        Originally posted by phoronix View Post
        In the case of Dbench with six threads, Reiser4 was the slowest although F2FS in this workload wasn't much faste.r

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        • #5
          I'd also like to see benchmarks on spinning disks, on SSDs it get murdered by the competition across the board,although it did kill ext4 in a couple which shows it's conviction.

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          • #6
            I think Reiser4 only makes sense where Btrfs makes sense (to use and compare against), which is where transparent compression is used.
            On my SSD, in my daily use use-case I use transparent compression to increase drive longevity, it's already fast enough. More specific workloads require filesystem tweaking anyway, so comparing defaults may not show full picture.

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            • #7
              I was astonished about Btrfs. Did it get faster?

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              • #8
                Michel, mkfs.reiser4 create=reg40 /dev....

                Else it enable compression par default, what the other fs dont..

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                • #9
                  As usual with these benchmarks there are some discussion about options:
                  1. BTRFS had COW enabled, Reiser4 did not (use txmod=wa to enable it, you get much more IOPS that way);
                  2. Reiser4 had compression enabled (create partition with create=reg40 to disable it), others didn't.

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                  • #10
                    Every time I see news about reiser all that comes to mind is that it was developed by a murderer...

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