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bug#27780: guix environment to build guile from git required excessive C
From: |
Ludovic Courtès |
Subject: |
bug#27780: guix environment to build guile from git required excessive CPU time |
Date: |
Mon, 24 Jul 2017 11:02:13 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Hi Mark,
Mark H Weaver <address@hidden> skribis:
> I just ran the following command on my Thinkpad X200 running GuixSD:
>
> ./pre-inst-env guix environment guile --ad-hoc autoconf automake libtool
> flex gettext
>
> Using the guix client from a git checkout at v0.13.0-1496-gcfd6a3b1e,
> and using guix-daemon from guix-0.13.0-3.b547349.
>
> This command took approximately 20 minutes of CPU time before
> downloading anything except possibly some NARINFOs. During this initial
> 20 minutes of CPU-bound activity, the only output was 4 occurrences of
> the following message:
>
> substitute: updating list of substitutes from
> 'https://mirror.hydra.gnu.org'... 100.0%
>
> The CPU time was roughly evenly split between the following two
> processes:
>
> USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
> root 8456 57.0 0.1 37420 7788 ? Rs 22:27 11:31 \_
> /gnu/store/gkv8zl774h2qpa89mrf6d74fry3rsnpa-guix-0.13.0-3.b547349/bin/guix-daemon
> 8450 guixbuild --max-silent-time 0 --timeout 0
> --substitute-urls https://mirror.hydra.gnu.org --gc-keep-derivations=yes
> --gc-keep-outputs=yes
> root 8457 45.0 0.9 124040 38556 ? Rl 22:27 9:03 \_
> /gnu/store/z16li2znnk2pdgrg3ldm34k669pcrdcx-guile-2.2.2/bin/guile
> --no-auto-compile
> /gnu/store/gkv8zl774h2qpa89mrf6d74fry3rsnpa-guix-0.13.0-3.b547349/bin/.guix-real
> substitute --query
Is it reproducible? If/when that happens again, could you ‘strace’ the
‘guix substitute’ process?
Any idea whether hydra.gnu.org was loaded at the time and returning 504
(“Gateway Timeout”)?
Thanks,
Ludo’.