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EXT4 Fast Commit Mode To Be Even Faster With Linux 5.18

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  • EXT4 Fast Commit Mode To Be Even Faster With Linux 5.18

    Phoronix: EXT4 Fast Commit Mode To Be Even Faster With Linux 5.18

    Added back in 2020 with the Linux 5.10 kernel was the new EXT4 "fast commits" mode for reducing commit latency in the ordered data mode. Now for the upcoming Linux 5.18 cycle, that fast commits mode should be even faster...

    https://www.phoronix.com/scan.php?pa...Commits-Faster

  • #2
    Not sure what this is about, it has nothing to do with posix flush/sync/fdatasync functions?
    Do you have to include some ext4 header?

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    • #3
      Originally posted by cl333r View Post
      Not sure what this is about, it has nothing to do with posix flush/sync/fdatasync functions?
      Do you have to include some ext4 header?
      Fast commits is a more light weight form of journaling and it works by reducing the amount of metadata that needs to be tracked. This in turn reduces latency and increases I/O perf.

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      • #4
        Originally posted by cl333r View Post
        Not sure what this is about, it has nothing to do with posix flush/sync/fdatasync functions?
        Do you have to include some ext4 header?
        that's what phoronix benchmark and graph are for

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        • #5
          Originally posted by cl333r View Post
          Not sure what this is about, it has nothing to do with posix flush/sync/fdatasync functions?
          Do you have to include some ext4 header?
          It's an option during formatting, needs recent kernel and e2fstools.

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