Re: Garbage Collector - for your Information

[Gottfried]

Hi Guixers,

thanks for Your advice Ludo and all other Guixers,

for Your information (first time of using gc):

After using Guix System for 6 month I did a:
"guix gc"

It collected about 50 GB and deleted that.

Than I deleted all generations
I did a "guix gc" again
and it deleted approx 40 GB again.

After that I did a
guix pull,
guix package -u,
sudo guix system reconfigure /etc/config.scm

and it downloaded approx 2,2 GB of packages.

The result of that is, that in future I will do a
"guix gc -F20G"
in order not to delete too much and later to redownload and rebuild them.

Gottfried



Am 09.08.22 um 22:18 schrieb Ludovic Courtès:

(I wanted to do that to get to know how it collects without deleting generations)

Hi,

Felix Lechner via <help-guix@gnu.org> skribis:

On Mon, Jul 25, 2022 at 2:52 AM Gottfried <gottfr...@posteo.de> wrote:

The manual says that it is dangerous to use: "guix gc"
because it can delete too much.

I agree that 'guix gc' deletes too much, but it's probably not
dangerous. You will just see some downloads and builds repeated when
reconfiguring later.

Indeed, it’s not dangerous, and I don’t think the manual suggests that.

To avoid collecting things just to redownload/rebuild them later, I
usually ask ‘guix gc’ to free up some amount of space, as in:

   guix gc -F20G

That ensures 20G (more or less) are available on my disk and doesn’t try
to collect more than that.

Thanks,
Ludo’.

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