this post was submitted on 07 Mar 2024
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    485
    Systemd controversy be like (sh.itjust.works)
    submitted 11 months ago by [email protected] to c/[email protected]
    145 comments fedilink hide all child comments
     
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    [โ€“] [email protected] 12 points 11 months ago* (last edited 11 months ago) (1 children)

    And funnily enough, the kernel doesn't follow the unix philosophy either as far as I know.

    [โ€“] [email protected] 8 points 11 months ago (1 children)

    I have heard that before in a joke setting, I would love to hear genuine arguments for and against it.

    [โ€“] [email protected] 15 points 11 months ago (2 children)

    The debate is as old as Linux itself, and well documented.

    [โ€“] [email protected] 7 points 11 months ago (1 children)

    It doesn't seem to be a debate. "Microkernels are better" "yes but I don't have the time for it" but thanks

    [โ€“] [email protected] 2 points 11 months ago* (last edited 11 months ago)

    At a high level, microkernels push as much as possible into userspace, and monolithic kernels keep drivers in kernel space

    There are arguments for each e.g. a buggy driver canโ€™t write into the memory space of another driver as easily in a micro kernel, however itโ€™s running in the same security level as userspace code. People will make arguments for both sides of which is more secure

    Monolithic kernels also tended to be more performant at the time, as you didnโ€™t have to context switch between ring 0 and ring 1 in the CPU to perform driver calls - we also regularly share memory directly between drivers

    These days pretty much all kernels have moved to a hybrid kernel, as neither a truly monolithic kernel nor a truly micro kernel works outside of theoretical debates

    [โ€“] [email protected] 1 points 11 months ago

    Thanks! I will look into