[systemd-devel] How to delete device units presented in systemd-analyze plot.

[Tony Seo]

 I understand what you mean, but I think that I will cut the time for
loading device unit if I keep those from appearing on my plot.

 I want to do a try to temporarily disappear some kinds of device units and
then I'm supposed to measure boot speed depending a board of
mine.(Actually, I believe that loading time for device unit affects to boot
speed)

 What do think that loading time for device units doesn't affect to boot
speed at machine?

 Thanks.



2013/8/8 Mantas Mikulėnas <grawity at gmail.com>

> On Wed, Aug 7, 2013 at 8:03 PM, Tony Seo <tonyseo7 at gmail.com> wrote:
> >
> >  Hello.
> >
> > Now, I have studied systemd for optimizing systemd on my board.
> >
> > After edited several units, I would like to delete some device
> configuration
> > units existing on my picture from
> systemd-analyze(best-dream-boy.blogspot)
> >
> > I read the manual pages about systemd.device, I tried to delete device
> units
> > through editing /etc/fstab and systemctl mask.
> >
> > But I couldn't delete those device units, at least existing units on the
> > picture.
>
> You cannot delete these units because they do not exist anywhere
> except in memory – they're only a way to represent device status in
> the format of systemd units. In other words, they do not cause the
> problems you're having; they only make the problems visible in your
> bootchart.
>
> --
> Mantas Mikulėnas <grawity at gmail.com>
>
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