GNU bug report logs - #38336
‘wine64-staging’ is very expensive to build

Message received at submit <at> debbugs.gnu.org:

Received: (at submit) by debbugs.gnu.org; 22 Nov 2019 23:12:19 +0000
From debbugs-submit-bounces <at> debbugs.gnu.org Fri Nov 22 18:12:19 2019
Received: from localhost ([127.0.0.1]:55699 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1iYI65-0007Cn-3F
	for submit <at> debbugs.gnu.org; Fri, 22 Nov 2019 18:12:19 -0500
Received: from lists.gnu.org ([209.51.188.17]:41655)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <ludo@HIDDEN>) id 1iYI5y-0007CZ-ES
 for submit <at> debbugs.gnu.org; Fri, 22 Nov 2019 18:12:15 -0500
Received: from eggs.gnu.org ([2001:470:142:3::10]:48244)
 by lists.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <ludo@HIDDEN>) id 1iYI5x-0000T0-DG
 for bug-Guix@HIDDEN; Fri, 22 Nov 2019 18:12:10 -0500
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org
X-Spam-Level: 
X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00
 autolearn=disabled version=3.3.2
Received: from fencepost.gnu.org ([2001:470:142:3::e]:47973)
 by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <ludo@HIDDEN>)
 id 1iYI5x-0008PA-9x
 for bug-Guix@HIDDEN; Fri, 22 Nov 2019 18:12:09 -0500
Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=60130 helo=ribbon)
 by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256)
 (Exim 4.82) (envelope-from <ludo@HIDDEN>) id 1iYI5w-0001vH-R6
 for bug-Guix@HIDDEN; Fri, 22 Nov 2019 18:12:09 -0500
From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: bug-Guix@HIDDEN
Subject: =?utf-8?Q?=E2=80=98wine64-staging=E2=80=99?= is very expensive to
 build
X-Debbugs-Cc: Rutger Helling <rhelling@HIDDEN>
X-URL: http://www.fdn.fr/~lcourtes/
X-Revolutionary-Date: 3 Frimaire an 228 de la =?utf-8?Q?R=C3=A9volution?=
X-PGP-Key-ID: 0x090B11993D9AEBB5
X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc
X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4  0CFB 090B 1199 3D9A EBB5
X-OS: x86_64-pc-linux-gnu
Date: Sat, 23 Nov 2019 00:12:07 +0100
Message-ID: <87r21z7bg8.fsf@HIDDEN>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
X-Spam-Score: -2.3 (--)
X-Debbugs-Envelope-To: submit
X-BeenThere: debbugs-submit <at> 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 <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -3.3 (---)

Hello,

I noticed that =E2=80=98wine64-staging=E2=80=99 is our most expensive packa=
ge to build.
Initially I was surprised because it only has a couple of nodes more in
its <package> object than =E2=80=98wine-staging=E2=80=99:

--8<---------------cut here---------------start------------->8---
ludo@ribbon ~/src/guix$ guix graph wine-staging |grep 'label =3D ' |wc -l
509
ludo@ribbon ~/src/guix$ guix graph wine64-staging |grep 'label =3D ' |wc -l
511
--8<---------------cut here---------------end--------------->8---

However, that single additional node leads to the duplication of the
whole derivation graph on x86_64-linux:

--8<---------------cut here---------------start------------->8---
ludo@ribbon ~/src/guix$ guix graph -t derivation wine-staging |grep 'label =
=3D ' |wc -l
2738
ludo@ribbon ~/src/guix$ guix graph -t derivation wine64-staging |grep 'labe=
l =3D ' |wc -l
4598
--8<---------------cut here---------------end--------------->8---

This is because =E2=80=98wine-staging=E2=80=99 has a hard-coded =E2=80=98#:=
system "i686-linux"=E2=80=99,
whereas =E2=80=98wine64-staging=E2=80=99 is (unsurprisingly :-)) built on x=
86_64-linux.

(The same problem happens with =E2=80=98wine=E2=80=99 vs. =E2=80=98wine64=
=E2=80=99.)

Likewise, =E2=80=98guix size wine64=E2=80=99 shows that every dependency ap=
pears twice
(one 32-bit, one 64-bit), and thus the total size is twice that of
=E2=80=98wine=E2=80=99.

Rutger, is there something that can be done to avoid this?  Apparently
only JSON files are copied from =E2=80=98wine-staging=E2=80=99 into =E2=80=
=98wine64-staging=E2=80=99,
but maybe they refer to 32-bit shared libraries or something?

Thanks,
Ludo=E2=80=99.