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HAMMER2 File-System Now Uses LZ4 Compression By Default

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  • HAMMER2 File-System Now Uses LZ4 Compression By Default

    Phoronix: HAMMER2 File-System Now Uses LZ4 Compression By Default

    DragonFlyBSD's HAMMER2 file-system has seen a lot of progress made recently. One of the latest additions to this HAMMER successor is enabling LZ4 compression by default...

    http://www.phoronix.com/scan.php?pag...R2-LZ4-Default

  • #2
    Does HAMMER still require a cron job to unallocate disk space for deleted files? This really should be handled by the filesystem and not a cron job

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    • #3
      > Does HAMMER still require a cron job to unallocate disk space for deleted files? This really should be handled by the filesystem and not a cron job

      Why ? In real world, it's not an issue for server. You basically won't notice the difference. For laptops it's a bit more complicated, since it's not up all the day and running the GC during the night won't work.

      That being said, no, HAMMER2 doesn't use a cron job, although it's not tracking free space eagerly either. There is still a GC, but it is run by the filesystem itself.

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