[systemd-devel] why are the systemd binaries so huge and can we do something about that?

[Reindl Harald]

Am 16.05.2016 um 14:18 schrieb Michael Biebl:
> 2016-05-16 6:15 GMT+02:00 Auke Kok <auke-jan.h.kok at intel.com>:
>> On Mon, May 16, 2016 at 04:24:25AM +0200, Michael Biebl wrote:
>>> 1,5M usr/bin/systemd-analyze
>>>
>>> What's up with systemd-analyze?
>>
>> It shouldn't be part of a base package, it's not even a diagnostic tool, more
>> like a performance measurement type of thing.
>>
>> I don't think size is of a concern for it.
>
> I do think size is of concern (even today with TB size disks), think
> of containers or small/embedded systems.
> See the recent developments regarding docker and alpine.

+1

it applies also to virtualization where it makes a difference on *very 
expensive* redundant strorage if every software left and right wastes 
1,2 or more MB of diskspace and you need more reserved space for updates 
and the rest of the system

> Atm we have those three options:
> 1/ don't enable a feature to keep the footprint down
> 2/ enable the feature but split it into a separate package → risk of
> balkanizing across distros
> 3/ enable the feature but ship it in the main package → accept the
> constant increase in footprint

or do what every other software-project does: use shared libraries below 
/usr/libexec

> As for some background: we recently got a recent in Debian to enable
> and ship the systemd-sysusers binary [1] as this is apparently
> required by rkt now. We don't make use of systemd-sysusers in Debian,
> so this would mean an additional 300K on every installation which is
> wasted for the majority of users. The alternative is to split it off,
> which is not too compelling either.
> Question is, why systemd-sysusers is such a large binary in the first
> place for such trivial functionality. And maybe we can address that.
>
> Regards,
> Michael
>
> [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823322

on Fedora 23 systemd has 26 M disk space

frankly i have systems with 650 MB on the rootfs and so systemd alone 
has 4% of the complete virtual machine

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