From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <guix-patches-bounces+larch=yhetil.org@gnu.org>
Received: from mp12.migadu.com ([2001:41d0:2:bcc0::])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
	by ms5.migadu.com with LMTPS
	id GA2qOkgG12KsbAEAbAwnHQ
	(envelope-from <guix-patches-bounces+larch=yhetil.org@gnu.org>)
	for <larch@yhetil.org>; Tue, 19 Jul 2022 21:30:17 +0200
Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
	by mp12.migadu.com with LMTPS
	id OBm1OkgG12JylQAAauVa8A
	(envelope-from <guix-patches-bounces+larch=yhetil.org@gnu.org>)
	for <larch@yhetil.org>; Tue, 19 Jul 2022 21:30:16 +0200
Received: from lists.gnu.org (lists.gnu.org [209.51.188.17])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by aspmx1.migadu.com (Postfix) with ESMTPS id 997E1117EB
	for <larch@yhetil.org>; Tue, 19 Jul 2022 21:30:16 +0200 (CEST)
Received: from localhost ([::1]:33142 helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <guix-patches-bounces+larch=yhetil.org@gnu.org>)
	id 1oDsv9-0005eK-PI
	for larch@yhetil.org; Tue, 19 Jul 2022 15:30:15 -0400
Received: from eggs.gnu.org ([2001:470:142:3::10]:33576)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
 id 1oDsuw-0005e1-Mz
 for guix-patches@gnu.org; Tue, 19 Jul 2022 15:30:02 -0400
Received: from debbugs.gnu.org ([209.51.188.43]:57431)
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
 (Exim 4.90_1) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
 id 1oDsuw-0006uV-EB
 for guix-patches@gnu.org; Tue, 19 Jul 2022 15:30:02 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
 (envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1oDsuw-000878-5U
 for guix-patches@gnu.org; Tue, 19 Jul 2022 15:30:02 -0400
X-Loop: help-debbugs@gnu.org
Subject: [bug#51427] [PATCH] nix: libstore: Do not remove unused links when
 deleting specific items.
Resent-From: Tobias Geerinckx-Rice <me@tobias.gr>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-CC: guix-patches@gnu.org
Resent-Date: Tue, 19 Jul 2022 19:30:02 +0000
Resent-Message-ID: <handler.51427.B.165825898431139@debbugs.gnu.org>
Resent-Sender: help-debbugs@gnu.org
X-GNU-PR-Message: followup 51427
X-GNU-PR-Package: guix-patches
X-GNU-PR-Keywords: patch
To: Liliana Marie Prikler <liliana.prikler@gmail.com>
Cc: 51427@debbugs.gnu.org, ludo@gnu.org, maxim.cournoyer@gmail.com,
 zimon.toutoune@gmail.com
X-Debbugs-Original-Cc: 51427@debbugs.gnu.org,
 Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>, guix-patches@gnu.org,
 Maxim Cournoyer <maxim.cournoyer@gmail.com>, zimoun <zimon.toutoune@gmail.com>
Received: via spool by submit@debbugs.gnu.org id=B.165825898431139
 (code B ref -1); Tue, 19 Jul 2022 19:30:02 +0000
Received: (at submit) by debbugs.gnu.org; 19 Jul 2022 19:29:44 +0000
Received: from localhost ([127.0.0.1]:55190 helo=debbugs.gnu.org)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <debbugs-submit-bounces@debbugs.gnu.org>)
 id 1oDsue-00086B-8d
 for submit@debbugs.gnu.org; Tue, 19 Jul 2022 15:29:44 -0400
Received: from lists.gnu.org ([209.51.188.17]:48660)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <me@tobias.gr>) id 1oDsuc-000863-FA
 for submit@debbugs.gnu.org; Tue, 19 Jul 2022 15:29:43 -0400
Received: from eggs.gnu.org ([2001:470:142:3::10]:33514)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <me@tobias.gr>) id 1oDsuc-0005bO-Ai
 for guix-patches@gnu.org; Tue, 19 Jul 2022 15:29:42 -0400
Received: from tobias.gr ([2a02:c205:2020:6054::1]:51356)
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <me@tobias.gr>)
 id 1oDsua-0006pd-5i; Tue, 19 Jul 2022 15:29:42 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=2018; bh=AE6i+HglaYMZ/
 OUpxzWZuelHjgUeWmi56J1QBWM0V4Q=;
 h=in-reply-to:date:subject:cc:to:
 from:references; d=tobias.gr; b=aGr42HW4ouUn+0yzJ3d//yRfGAbvt9VYfMSG7J
 reYJQrlzx7r7IcY6rbOER4BwqYsakVTUHimQfTvGuHJCSGgcFTzRhtcj0/AhyabFlSFI/c
 VMvFWZuRa1E4v+sXU7TyJhe0P8Uj7MuE858vrMtZ7TjUA0f/4WwBr8ww5TYv2YqXX3Yd3t
 lktRr5w2oyZVT87mLTzi5b+aGO2cdd/bancvSgFDA5SOsQx9BEt2DDyG8k/o+nRruJJVV3
 KUIN6CRKtPtyBshaguZ9XO9fkFnjamIAZCY9EmJ7gSA/7YJtvLd4e11T0hqqZSH7/V3xRi
 pDIOMFqAd2iRMYN8etjxc0Xw==
Received: by submission.tobias.gr (OpenSMTPD) with ESMTPSA id d0db2af7
 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); 
 Tue, 19 Jul 2022 19:29:33 +0000 (UTC)
References: <20211027034918.4591-1-maxim.cournoyer@gmail.com>
 <87o8795j61.fsf@gnu.org>
 <5c2dd60acfaa7d74b7554babb3e223bc855bac8a.camel@gmail.com>
 <87h7cxp9tl.fsf@gnu.org> <87sfwg7w9z.fsf@gmail.com>
 <87ee7tmdbd.fsf@gnu.org> <86k0hhnqss.fsf@gmail.com>
 <871r3f2j7y.fsf@gnu.org> <867dd7roi2.fsf@gmail.com>
 <87o7xmy14l.fsf_-_@gnu.org>
 <2441c768fea8faee800947a17aef896c35173845.camel@gmail.com>
 <87sfmxv6ue.fsf@gnu.org>
 <8538dc9925eb499ea2b728e349d98296eedeb14d.camel@gmail.com>
Date: Tue, 19 Jul 2022 21:25:24 +0200
In-reply-to: <8538dc9925eb499ea2b728e349d98296eedeb14d.camel@gmail.com>
BIMI-Selector: v=BIMI1; s=default;
Message-ID: <877d48lx41@nckx>
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=-=-=";
 micalg=pgp-sha512; protocol="application/pgp-signature"
Received-SPF: pass client-ip=2a02:c205:2020:6054::1; envelope-from=me@tobias.gr;
 helo=tobias.gr
X-Spam_score_int: -20
X-Spam_score: -2.1
X-Spam_bar: --
X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, 
 SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-BeenThere: debbugs-submit@debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
X-BeenThere: guix-patches@gnu.org
List-Id: <guix-patches.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-patches>,
 <mailto:guix-patches-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/guix-patches>
List-Post: <mailto:guix-patches@gnu.org>
List-Help: <mailto:guix-patches-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-patches>,
 <mailto:guix-patches-request@gnu.org?subject=subscribe>
Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org
Sender: "Guix-patches" <guix-patches-bounces+larch=yhetil.org@gnu.org>
Reply-to:  Tobias Geerinckx-Rice <me@tobias.gr>
X-ACL-Warn: ,  Tobias Geerinckx-Rice via Guix-patches <guix-patches@gnu.org>
From:  Tobias Geerinckx-Rice via Guix-patches via <guix-patches@gnu.org>
X-Migadu-Flow: FLOW_IN
X-Migadu-To: larch@yhetil.org
X-Migadu-Country: US
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org;
	s=key1; t=1658259016;
	h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date:
	 message-id:message-id:to:to:cc:cc:mime-version:mime-version:
	 content-type:content-type:resent-cc:resent-from:resent-sender:
	 resent-message-id:in-reply-to:in-reply-to:references:references:
	 list-id:list-help:list-unsubscribe:list-subscribe:list-post:
	 dkim-signature; bh=AE6i+HglaYMZ/OUpxzWZuelHjgUeWmi56J1QBWM0V4Q=;
	b=G3EP/UJZZ7qhmn38SK+jTYzxuTNZE5BermWgCkfLz81AzFRrXwA9SVQjAFxv5fHaq6e1+B
	uyqPam5KLiiEDBVmteSUzgEeaDqA7TMBs416CIph2pG4/QERMddU76NfoYrHsgK8JtY/0t
	yxUg/9PrMJYPHKNZrUXlcKH8c9umdLqbzxOFvRasXWovSEtjCyU52ffOoisBWvbOIAcYdB
	HYyVcZEF0bsH3p3vLpIamZp4nIY6XRXy9URfv5i1L4kcWnq2rzsgGIHRBWWmbXK38IqNi2
	wrlbjIzH3CNLP/oOmpqCf8CgBsnZYn5Xv3tOLGYegeiqfXjtUYak7WRWjTei7A==
ARC-Seal: i=1; s=key1; d=yhetil.org; t=1658259016; a=rsa-sha256; cv=none;
	b=stgDpUGH692cllxZQqMv59k4HMxOw8MNwEwyKcshA2xwPCgpkAp78wKzqDEnEgAypTnoXl
	2G5cs8YAIyuNbH3qF9pjdaPkjOVywtrQbDpjOhR2z+W4oNfm5jPCiUUQm34cDfCef1enf+
	mNItCbJ65/CJtFZtI7xECKdh7EPyX8DsmNcsrlWGEI6xTOxY/kKAkpTdgh0o9jBYrb0YOy
	FpP+l6KNXgxKBGS1SlSsozQJ9X1X/EVAn82+fCvDPiKpcJvO5WgIbrEUzmMVSBw8+0AbpO
	KJyCJOpjVYHHffJpDs6uYSeVDdfWXSQAFQIGYqQIMq8OW4tFsv1V9Q6F2ubZuA==
ARC-Authentication-Results: i=1;
	aspmx1.migadu.com;
	dkim=fail ("headers rsa verify failed") header.d=tobias.gr header.s=2018 header.b=aGr42HW4;
	dmarc=pass (policy=none) header.from=gnu.org;
	spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org"
X-Migadu-Spam-Score: -3.73
Authentication-Results: aspmx1.migadu.com;
	dkim=fail ("headers rsa verify failed") header.d=tobias.gr header.s=2018 header.b=aGr42HW4;
	dmarc=pass (policy=none) header.from=gnu.org;
	spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org"
X-Migadu-Queue-Id: 997E1117EB
X-Spam-Score: -3.73
X-Migadu-Scanner: scn1.migadu.com
X-TUID: /c5NV0uCET6M

--=-=-=
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: quoted-printable

Liliana Marie Prikler =E5=86=99=E9=81=93=EF=BC=9A
> scheme@(guile-user)> ,t (length (scandir "/gnu/store/.links"))
> $1 =3D 213027
> ;; 1417.872747s real time, 28.514293s run time.  1.284866s spent=20
> in GC.

[=E2=80=A6]

> So yeah, assuming that scandir scales linearly

=E2=80=A6your rotational drive is beyond ridiculously slower than mine (an=
=20
ST1000DM010-2EP102):

athena.tobias.gr:~ =CE=BB echo 3 | sudo tee /proc/sys/vm/drop_caches=20
3
athena.tobias.gr:~ =CE=BB guix repl
[=E2=80=A6]
scheme@(guix-user)> ,use (ice-9 ftw)
scheme@(guix-user)> ,t (length (scandir "/gnu/store/.links"))
$1 =3D 164437
;; 7.081361s real time, 2.569773s run time.  0.199963s spent in=20
   GC.

Kind regards,

T G-R

--=-=-=
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iIMEARYKACsWIQT12iAyS4c9C3o4dnINsP+IT1VteQUCYtcGHg0cbWVAdG9iaWFz
LmdyAAoJEA2w/4hPVW15jLUA/RUtMKSluKICEiuL0dauuBZAjb6INZhfjlDq6UM9
o0tLAQC/+FGYEsWJ01hyRbU2KcFGoUXEmN8aGlu7s7Uo9658Cw==
=pcnk
-----END PGP SIGNATURE-----
--=-=-=--