From: Ricardo Wurmus <rekado@elephly.net>
To: Chris Marusich <cmmarusich@gmail.com>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: Guix to participate in the Google Summer of Code
Date: Wed, 21 Feb 2018 09:25:11 +0100 [thread overview]
Message-ID: <87h8qarbq0.fsf@elephly.net> (raw)
In-Reply-To: <87sh9u3lph.fsf@gmail.com>
Chris Marusich <cmmarusich@gmail.com> writes:
> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> Garbage collection in the context of Guix is not very difficult to
>> understand. The garbage collector may remove any item that has zero
>> users; the link count on a store item is indicative of the number of
>> users that item has. For garbage collection you essentially go through
>> all items and check if the link count is zero.
[…]
> It looks like, in nix/libstore/gc.cc, we basically walk the references
> graph starting from the GC roots and delete anything that can't be
> reached from a root.
Yes, this is more accurate. Thanks for the correction.
(Link counts only matter for deduplication.)
--
Ricardo
GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC
https://elephly.net
prev parent reply other threads:[~2018-02-21 8:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-14 23:47 Guix to participate in the Google Summer of Code Ludovic Courtès
2018-02-18 7:23 ` Alex Vong
2018-02-18 10:28 ` Ricardo Wurmus
2018-02-19 16:02 ` Alex Vong
2018-02-21 9:10 ` Ricardo Wurmus
2018-02-21 6:23 ` Chris Marusich
2018-02-21 8:25 ` Ricardo Wurmus [this message]
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=87h8qarbq0.fsf@elephly.net \
--to=rekado@elephly.net \
--cc=cmmarusich@gmail.com \
--cc=guix-devel@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).