GNU bug report logs

#24937 "deleting unused links" GC phase is too slow

PackageSource(s)Maintainer(s)
guix PTS Buildd Popcon
Full log

Message #58 received at 24937@debbugs.gnu.org (full text, mbox, reply):

Received: (at 24937) by debbugs.gnu.org; 9 Nov 2021 15:00:42 +0000
From debbugs-submit-bounces@debbugs.gnu.org Tue Nov 09 10:00:41 2021
Received: from localhost ([127.0.0.1]:35329 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces@debbugs.gnu.org>)
	id 1mkSc5-0002tQ-LZ
	for submit@debbugs.gnu.org; Tue, 09 Nov 2021 10:00:41 -0500
Received: from eggs.gnu.org ([209.51.188.92]:49500)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <ludo@gnu.org>) id 1mkSbz-0002sz-Eg
 for 24937@debbugs.gnu.org; Tue, 09 Nov 2021 10:00:39 -0500
Received: from [2001:470:142:3::e] (port=43366 helo=fencepost.gnu.org)
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <ludo@gnu.org>)
 id 1mkSbu-0007LA-5t; Tue, 09 Nov 2021 10:00:30 -0500
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org;
 s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To:
 From; bh=YgGg4qAAb/yBsquuSHScTCCAQ0J9Mc/s9vUlK504syM=; b=EBzio1+IOxncAE2aK5e8
 l6OvEdwMyKpSpfslDaJz0ITc5pj6EX/raYWyCw8yKdOM01Cmf6gFhBS7CHxUQJPryYpvoDNXIHsd5
 TloVs51WSDNroWBc4PoAFEoyIfvgupTqTewgX22xffAtwGWoljLgBp9n/d2Nflrr1gioTcn1SXE0O
 COJF3Ks5yD4TdSnt4npZYWDjGIyCH1zDYpawZezFXn4stEPLzSkF8yhu49IMZLnbNESIIMGxMj+aJ
 i++kIgZo3X3ykrpSmpyvR5gw1W5esduNK+gL1uGz9Ag7Qk4o1v5BFJSVPo4N1vL+RioHZvuVDFVCu
 YihFGkCS4UJOVw==;
Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201]:50646
 helo=ribbon)
 by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <ludo@gnu.org>)
 id 1mkSbt-0001rR-OZ; Tue, 09 Nov 2021 10:00:29 -0500
From: Ludovic Courtès <ludo@gnu.org>
To: 24937@debbugs.gnu.org
Subject: Re: bug#24937: "deleting unused links" GC phase is too slow
References: <87wpg7ffbm.fsf@gnu.org> <87pmr9l76m.fsf@gnu.org>
Date: Tue, 09 Nov 2021 16:00:25 +0100
In-Reply-To: <87pmr9l76m.fsf@gnu.org> ("Ludovic Courtès"'s message of "Tue, 09 Nov 2021 15:44:49 +0100")
Message-ID: <87fss5l6gm.fsf@gnu.org>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-Spam-Score: -2.3 (--)
X-Debbugs-Envelope-To: 24937
Cc: Maxim Cournoyer <maxim.cournoyer@gmail.com>
X-BeenThere: debbugs-submit@debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request@debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit@debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request@debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request@debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces@debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
X-Spam-Score: -3.3 (---)
Ludovic Courtès <ludo@gnu.org> skribis:

> On my laptop, we’re talking about space savings of 325 MiB, a tiny
> fraction of my store:
>
> scheme@(guile-user)> (saved-space (filter (lambda (file)
> 					    (< (deduplicated-file-size file) 1024))
> 					  l))
> $40 = 325914739

For files < 4 KiB, the savings are ~2 GiB, roughly 1% of my store.

Ludo’.




Send a report that this bug log contains spam.


debbugs.gnu.org maintainers <help-debbugs@gnu.org>. Last modified: Sun Sep 7 08:41:33 2025; Machine Name: wallace-server

GNU bug tracking system

Debbugs is free software and licensed under the terms of the GNU Public License version 2. The current version can be obtained from https://bugs.debian.org/debbugs-source/.

Copyright © 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson, 2005-2017 Don Armstrong, and many other contributors.