this post was submitted on 04 Oct 2023
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[–] CakeLancelot 75 points 11 months ago (6 children)

Does too much for one tool (against unix philosophy) and has poor interop with other tools (binary logfiles).

[–] ichbinjasokreativ 66 points 11 months ago

That's not really true. systemd is split up into many different, independent binaries, and each of those does one job and does it well.

[–] [email protected] 40 points 11 months ago (1 children)

Linux User when their program does more than IO text streams:

[–] uis 4 points 11 months ago

Piping xz into tar is not text stream

[–] ichbinjasokreativ 21 points 11 months ago (2 children)

That's not really true. systemd is split up into many different, independent binaries, and each of those does one job and does it well.

[–] CakeLancelot 57 points 11 months ago

Does it really matter if you can't use those independent binaries with any other init system? If you want to use systemd, you pretty much have to take the whole ecosystem.

[–] [email protected] 18 points 11 months ago (1 children)

If I remember correctly, there was a ton of pain configuring a minimal systemd. I am unaware if that has changed much in recent years.

Here is an old thread talking about it: https://unix.stackexchange.com/questions/150975/what-is-needed-for-a-minimal-systemd-boot-to-launch-getty-on-a-virtual-console

[–] [email protected] 7 points 11 months ago

Your link describes setting up one file, the [email protected].
The .target unit files are built-in, and not part of configuration.

[–] [email protected] 13 points 11 months ago (3 children)

Btw. The Linux kernel does more than one thing. But monolithic kernels are much better for small student projects that won't be relevant anymore, when Gnu Hurd comes out

[–] rwhitisissle 3 points 11 months ago

when Gnu Hurd comes out

Any day now...

[–] uis 2 points 11 months ago
[–] [email protected] 2 points 11 months ago

Monolithic kernels are also generally more performant, compared to micro-kernels, it turns out. A bit counter-intuitive at first but, makes sense when you think about it.

Micro-kernels in general-purpose OSes suffer from a death of a thousand cuts due to context switching. Something that would be a single callback to the kernel in a monolith turns into a mess of calls bouncing between kernel and user space. When using something like an RTOS where hardware is not likely intended for general-purpose computing, this is not an issue but, when you start adding all of the complexity of user-installable applications that need storage, graphics, inputs, etc, the number of calls gets huge.

[–] maryjayjay 5 points 11 months ago

Binary log files is my only significant complaint