[systemd-devel] systemd-analyze-197 broken
Zbigniew Jędrzejewski-Szmek
zbyszek at in.waw.pl
Mon Jan 14 17:06:51 PST 2013
On Tue, Jan 15, 2013 at 01:43:52AM +0100, Reindl Harald wrote:
>
>
> Am 15.01.2013 01:34, schrieb Zbigniew Jędrzejewski-Szmek:
> > It doesn't. Graphical libraries are loaded only when used.
> >
> > Of course systemd-analyze is _packaged_ as dependent on graphical
> > libraries, because the split to save a few megabytes on a server
> > installation is not worth the maintainer's (or admin's) time.
>
> what developers often not see are cross-deps
>
> yum remove lib1
> package-cleanup --leavses --all
> oh: "yum remove lib2 lib3 lib4" possible now
> package-cleanup --leavses --all
> oh: "yum remove lib5 lib6 lib7 lib8" is possible now
> sometimes you can do this circle multiple times
>
> honestyl i have often seen such cross-deps freeing up
> around 100 MB, on a virtual infrastructure multiplied
> with 30 we are at 300 MB and additionally the benefit
> besides only the storage is:
C'mon, 100 MB? 12% of the size of gcc-debuginfo.amd64?
Zbyszek
> * much faster dist-upgrades on all machines
> * less troubles with fighting dependencies
>
> that said, in the last few years i freed up 25% on any of
> my servers by look critical what is really isntalled, remove
> anything unneeded and remove any cross-dependencie
>
> the difference finally is 3-5 minutes for a complete fedora
> dist-upgrade and last but not least you reduce the potentially
> exploitable code on your machines - the last years showed that
> sooner or later nearly anything got exploitable
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