this post was submitted on 20 Apr 2024
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    mv Windows Linux (discuss.tchncs.de)
    submitted 6 months ago by [email protected] to c/[email protected]
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    [–] [email protected] 8 points 6 months ago (1 children)

    Yep. Almost all operating systems have a bufor that tell programs file was moved when it is still in the process. It makes perfect sense, it speed things up and extends the lifespan of the device.

    You can flush that bufor manually with just the sync command or disable it for whole partition with -o sync option. Technically you should unmount drives before unplugging for safety anyway, but people are stupid or more important lazy and in my opinion for external devices mounting with sync really should be the default. Maybe some low-level developer would disagree.

    [–] [email protected] 1 points 6 months ago (1 children)

    I'm very confused by this thread.

    Progress bars are handled by the applications themselves, whether flushing happens or not;

    immediate flushing does not increase storage lifespan, in fact letting the OS decide when to do it may allow wear-leveling to work better.

    (Though, IMO immediate flushing should be the default for removable media on user-friendly distributions, like swap partitions are)

    [–] [email protected] 2 points 6 months ago

    Progress bars are handled by the applications themselves

    Yes, but OS must tell the application how much of the operation is done

    immediate flushing does not increase storage lifespan

    I was trying to say the opposite. Caching/buffering is what longers the lifespan and can speed system up