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[bug#54539] [PATCH 0/6] Start breaking up import cycles
From: |
zimoun |
Subject: |
[bug#54539] [PATCH 0/6] Start breaking up import cycles |
Date: |
Fri, 25 Mar 2022 20:33:28 +0100 |
Hi Maxime,
On Fri, 25 Mar 2022 at 18:46, Maxime Devos <maximedevos@telenet.be> wrote:
> zimoun schreef op vr 25-03-2022 om 18:05 [+0100]:
> > To be honest, I am not sure to understand the aim of reorganizing the
> > modules... I mean, to me, the only important metrics is the
> > performance of the end-user. If there is no performance improvement
> > when cutting cycle, then it appears to me pointless to cut cycles. :-)
>
> FWIW, there are three goals here:
>
> * Allowing writing stuff like
>
> (use-modules (gnu packages ncurses))
> (package
> (name "some-terminal-app")
> [...]
> ;; Work-around the ‘search path of dependencies not propagated’ bug.
> (native-search-paths (package-native-search-paths ncurses)))
>
> without getting 'unbound variable' errors.
> Alternatively, the search-path-specification could be defined in,
> say, (guix search-paths) next to $PATH but that proposal seems
> to have been rejected.
>
> * Making "compute-guix-derivation" faster by reducing the number of
> (uncompiled!) package module files it needs to load.
>
> * Eventually making the ‘incremental compilation’ by fine-grained
> derivations
> proposal from the ‘Faster "guix pull" by incremental compilation and
> non-circular modules?’ thread [0] feasible.
Thanks for the detailed and clear explanations. It was my initial
understanding that cutting cycles can improve the performances, and
IMHO, timings are required for comparing apple to apple; as I tried to
explain [1]. Then the thread have let me the impression that the
performance improvement was not the aim -- thanks for clarifying.
1: <https://issues.guix.gnu.org/54539#12>
> (*) FWIW, on my machine, "guix show guix" takes 1.6s.
To be precise, "guix show guix" could be drastically improved by
adapting the already existing package.cache, i.e., resume the lengthy
work of <https://issues.guix.gnu.org/39258>. :-)
However, such cache would be useless for "guix show -L path/to/others
foo" where performance can be really poor; especially on spinning hard
disk. Well, thanks for working on that by trying to tackle the cycle
of modules.
Cheers,
simon
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, (continued)
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/24
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Liliana Marie Prikler, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Liliana Marie Prikler, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, zimoun, 2022/03/24
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/24
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Liliana Marie Prikler, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, zimoun, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/25
- [bug#54539] [PATCH 0/6] Start breaking up import cycles,
zimoun <=
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Leo Famulari, 2022/03/24
- [bug#54539] [PATCH 0/6] Start breaking up import cycles, Liliana Marie Prikler, 2022/03/25
[bug#54539] [PATCH 1/6] gnu: audacity: Move into new module to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 2/6] gnu: xsensors: Move to (gnu packages xorg) to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 5/6] gnu: earlyoom: Avoid importing Goland and Haskelland to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 6/6] gnu: linux: Avoid importing (gnu packages check) to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 3/6] gnu: tlp: Move tlp and friends to new module to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 4/6] gnu: go-netlink: Move to (gnu packages networking) to break cycles., Maxime Devos, 2022/03/23
- [bug#54539] [PATCH 1/6] gnu: audacity: Move into new module to break cycles., Maxime Devos, 2022/03/25
[bug#54539] [PATCH 0/6] Start breaking up import cycles, Maxime Devos, 2022/03/24