From: ludo@gnu.org (Ludovic Courtès)
To: Pjotr Prins <pjotr.public12@thebird.nl>
Cc: guix-devel@gnu.org
Subject: Re: updating list of substitutes
Date: Sun, 11 Oct 2015 20:39:32 +0200 [thread overview]
Message-ID: <87wputz1uj.fsf@gnu.org> (raw)
In-Reply-To: <20151011074654.GA8058@thebird.nl> (Pjotr Prins's message of "Sun, 11 Oct 2015 09:46:54 +0200")
Pjotr Prins <pjotr.public12@thebird.nl> skribis:
> The list of substitutes gets downloaded every time I do someting:
>
> substitute: updating list of substitutes from 'http://hydra.gnu.org'... 4.6%
>
> and it is slow. Am I doing something wrong?
No! Slowness is a longstanding issue of hydra.gnu.org, a poor little
VM. I hope we can address it soon! See
<https://lists.gnu.org/archive/html/guix-devel/2015-10/msg00172.html>.
> It appears to me that if the list does not change it should not be
> downloaded.
It’s not downloaded “every time.”
When building a package FOO, Guix looks for substitutes for FOO and its
prerequisites (those not already available locally.) It maintains in
/var/guix/substitute/cache a cache of those lookups.
Positive caches (for substitutes that are available) expire after 36h;
negative caches (substitutes that are missing) expire after 3h.
See (guix scripts substitute) for details; look for ‘ttl’.
Ludo’.
next prev parent reply other threads:[~2015-10-11 18:39 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-21 6:45 updating list of substitutes Pjotr Prins
2015-04-21 8:22 ` Ludovic Courtès
2015-04-21 8:40 ` Pjotr Prins
2015-04-21 9:19 ` Andreas Enge
2015-04-21 10:02 ` Pjotr Prins
2015-04-21 12:02 ` Andreas Enge
2015-04-21 16:38 ` Pjotr Prins
2015-04-22 19:01 ` Mark H Weaver
2015-04-22 11:46 ` Pjotr Prins
2015-04-22 12:24 ` Andreas Enge
2015-04-22 12:35 ` Pjotr Prins
2015-04-22 13:08 ` Taylan Ulrich Bayırlı/Kammer
2015-04-23 9:52 ` Ludovic Courtès
2015-05-26 12:42 ` Pjotr Prins
2015-05-26 20:50 ` Ludovic Courtès
2015-10-11 7:46 ` Pjotr Prins
2015-10-11 8:47 ` Efraim Flashner
2015-10-11 18:39 ` Ludovic Courtès [this message]
2015-10-11 21:27 ` Pjotr Prins
2015-10-12 5:15 ` Mark H Weaver
2015-10-12 6:06 ` Pjotr Prins
2015-10-12 16:31 ` Mark H Weaver
2015-10-12 21:12 ` Pjotr Prins
2015-10-12 17:03 ` Ludovic Courtès
2015-10-13 12:11 ` Pjotr Prins
2015-10-13 12:52 ` Andreas Enge
2015-10-13 14:35 ` Ludovic Courtès
2015-11-18 16:15 ` Pjotr Prins
2015-11-18 16:28 ` Thompson, David
2015-11-18 16:30 ` Alex Sassmannshausen
2015-11-18 18:29 ` Funding the build farm Ludovic Courtès
2015-11-18 18:38 ` Cook, Malcolm
2015-11-18 20:55 ` Pjotr Prins
2015-11-18 21:20 ` Ludovic Courtès
2015-11-18 21:26 ` Cook, Malcolm
2015-11-22 10:53 ` Andreas Enge
2015-11-23 15:00 ` Ludovic Courtès
2015-11-23 15:29 ` Mathieu Lirzin
2015-11-23 19:38 ` John Darrington
2015-11-24 12:05 ` Alex Sassmannshausen
2015-11-24 14:54 ` Efraim Flashner
2015-11-24 15:12 ` John Darrington
2015-11-24 15:12 ` Ricardo Wurmus
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://guix.gnu.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87wputz1uj.fsf@gnu.org \
--to=ludo@gnu.org \
--cc=guix-devel@gnu.org \
--cc=pjotr.public12@thebird.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/guix.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).