• Sims@lemmy.mlEnglish
    18·
    11 months ago

    Does that mean that all Fuse filesystems automatically gets this huge boost ?

    • ylai@lemmy.mlOP
      23·
      11 months ago

      In the beginning, only privileged ones will be allowed to run in pass-through mode. But goal/roadmap calls for all FUSE filesystems eventually to have this near-native performance.

      • Sims@lemmy.mlEnglish
        8·
        11 months ago

        I feel I should know this in my bones after so many years, but does ‘privileged’ in kernel context also include ‘sudo/sudo su’ elevated users ? I wonder if the kernel distinguish between pure root, and elevated user …or if it even matters here ?

        Anyway, this is cool. There’s a ton of crazy file systems that just didn’t pan out bc of speed issues. I’ll just leave these links to filesystems.

        https://github.com/libfuse/libfuse/wiki/Filesystems A ton of cool ideas!.. I need my AI to have access via fuse. https://en.wikipedia.org/wiki/Filesystem_in_Userspace?lang=en less crazy systems but probably stable projects

        Thanks for sharing the info!

        • Pantherina@feddit.de
          4·
          11 months ago

          sudo allows so run actions as root, so I would say yes.

          But a privileged filesystem might not be invoked by the user, it may be a process running as root.

      • Violet_McQuasional@feddit.uk
        1·
        11 months ago

        How would the update affect stuff like a GoCryptFS volume which I mount and use periodically but not all the time? Would those files be processed much faster than previously?

  • AutoTL;DR@lemmings.worldBEnglish
    10·
    11 months ago

    This is the best summary I could come up with:

    The FUSE passthrough mode that’s been years in the making for better performance was merged upstream today for the in-development Linux 6.9 kernel!

    Last month I wrote that FUSE passthrough might land for Linux 6.9 after noticing the patches finally appear in FUSE.git’s “for-next” branch.

    This feature was indeed sent in as part of the FUSE updates for Linux 6.9 and today Linus Torvalds merged it upstream.

    The FUSE merge for Linux 6.9 sums up the feature as: Add passthrough mode for regular file I/O.

    This allows performing read and write (also via memory maps) on a backing file without incurring the overhead of roundtrips to userspace.

    For now this is only allowed to privileged servers, but this limitation will go away in the future FUSE for Linux 6.9 also fixes up an interaction issue in direct I/O mode with memory maps, exposes file-system tags through sysfs for VirtIOFS, and various other fixes.

    The original article contains 248 words, the summary contains 153 words. Saved 38%. I’m a bot and I’m open source!

    • ylai@lemmy.mlOP
      221·
      11 months ago

      Not sure what called for this blatant personal attack. My post history speaks for itself, quite in comparison to yours. And Phoronix is well-known Linux website, and its test suite is in fact even referenced in various regression tests/patches in LKML (also not sure what/if any kind of kernel development you have done).