From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: 51472@debbugs.gnu.org
Subject: bug#51472: substitute servers should be preferred according to their coverage rate
Date: Thu, 28 Oct 2021 22:07:39 -0400 [thread overview]
Message-ID: <87k0hwa8ic.fsf@gmail.com> (raw)
Hello,
When using substitute servers discovery, I've noticed that if one of the
substitute servers doesn't have any substitutes available, it'll keep
getting tried instead of others, leading to a slide-show of substitutes
updates such as:
--8<---------------cut here---------------start------------->8---
normalized load on machine '127.0.0.1' is 0.04
building /gnu/store/ajd0hx104702jpz2ycdwgrnyrv8jsp6d-xorg-server-21.1.0.tar.xz.drv...
process 9195 acquired build slot '/var/guix/offload/127.0.0.1:6666/1'
normalized load on machine '127.0.0.1' is 0.04
building /gnu/store/49rqi3wpvdm5pv6in9pamzdvg0wscrl8-xorgproto-2021.5.drv...
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://127.0.0.1:8080'... 100.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
substitute: updating substitutes from 'http://127.0.0.1:8080'... 100.0%
substitute: updating substitutes from 'http://192.168.10.102:80'... 0.0%
--8<---------------cut here---------------end--------------->8---
We should implement some scheme to prefer querying high-substitute
servers first, instead of wasting time querying servers always failed
queries; this would greatly improve performance when using substitute
discovery for example combined with low coverage.
Thanks!
Maxim
next reply other threads:[~2021-10-29 2:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-29 2:07 Maxim Cournoyer [this message]
2021-11-07 15:11 ` bug#51472: substitute servers should be preferred according to their coverage rate Ludovic Courtès
2022-01-11 3:43 ` Maxim Cournoyer
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=87k0hwa8ic.fsf@gmail.com \
--to=maxim.cournoyer@gmail.com \
--cc=51472@debbugs.gnu.org \
/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).