From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id 2L1AONFIcGLEvwAAbAwnHQ (envelope-from ) for ; Mon, 02 May 2022 23:10:41 +0200 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id YG0nONFIcGLfkgAAauVa8A (envelope-from ) for ; Mon, 02 May 2022 23:10:41 +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 B91C729026 for ; Mon, 2 May 2022 23:10:41 +0200 (CEST) Received: from localhost ([::1]:59328 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nldJY-0002Iv-BL for larch@yhetil.org; Mon, 02 May 2022 17:10:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35704) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nldJJ-0002Ih-3z for guix-devel@gnu.org; Mon, 02 May 2022 17:10:25 -0400 Received: from laurent.telenet-ops.be ([2a02:1800:110:4::f00:19]:38280) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nldJH-0007Mg-1k for guix-devel@gnu.org; Mon, 02 May 2022 17:10:24 -0400 Received: from ptr-bvsjgyhxw7psv60dyze.18120a2.ip6.access.telenet.be ([IPv6:2a02:1811:8c09:9d00:3c5f:2eff:feb0:ba5a]) by laurent.telenet-ops.be with bizsmtp id RxAK2700S4UW6Th01xAK58; Mon, 02 May 2022 23:10:20 +0200 Message-ID: <1ff0dc254fb6f80192bf8f5914e5aa94dd7a00d1.camel@telenet.be> Subject: Re: Hardened toolchain From: Maxime Devos To: zimoun , Ludovic =?ISO-8859-1?Q?Court=E8s?= , Maxim Cournoyer Cc: guix-devel@gnu.org, kiasoc5@tutanota.com Date: Mon, 02 May 2022 23:10:14 +0200 In-Reply-To: <87ilqn96hl.fsf@gmail.com> References: <874k3r8m4m.fsf@gmail.com> <8464b1bff3acb0a84f46ea6dcbbeaa7045b03d1c.camel@telenet.be> <874k3iwysf.fsf@gmail.com> <87pmm512uv.fsf@gnu.org> <87h76ccha7.fsf@gmail.com> <599c070e48d782c5edf1b2a209c09a0489b79bc2.camel@telenet.be> <87ilqn96hl.fsf@gmail.com> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-K392Vqp8X5Gne6ZcdTs9" User-Agent: Evolution 3.38.3-1 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telenet.be; s=r22; t=1651525820; bh=2hpwf5gQrlvX55T9Z673KJ5sLJP0KW3eQbhPpPDs7Ls=; h=Subject:From:To:Cc:Date:In-Reply-To:References; b=JfsYsMF8cSf6GneC7Ram8jF7Ex92u0LZdub75E/i3s1NmunaOaUL5xypztHL7vZBI zfhIw1INHcO+Y67shWlKXfEqukh0skuC92kVjUEEPpkxr44zvXadLB39/Yf8gxas2t CTxQix0WlrBemu51gzvLohOPHjjHHVfY/bHy0gIupCSyaefpv0Q2cLKos3pcJhEFee e7AY8OCKM1LaeWr3rqGUYN/VAfITxgksPKnYh/huS77aICeI3T6gv6WDLkdfv5hHZg yAZPELe084RYMHldmIjS9JpiwyFSgTySFou15ey1pI22sv3b5q1MiylvSRAdNxx29B bkcicFP/0y/ZQ== Received-SPF: pass client-ip=2a02:1800:110:4::f00:19; envelope-from=maximedevos@telenet.be; helo=laurent.telenet-ops.be X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=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: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" 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=1651525841; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=2hpwf5gQrlvX55T9Z673KJ5sLJP0KW3eQbhPpPDs7Ls=; b=b6JnbHnNZdufYA8kc+3gWFEgRvVPsubF0Y0bOzHdob9UZHFH3ULgVTqcLFfMqaY/D3Puh/ igvz2g6mC0jmQ+8tDp54/VOxm1gV27QLuTlfMF0t8m52gSRwcdIHSc08dEWJcHkX7ZWk6U ckhyjveUJv4fmm122lsL+4hR5sZfcp8DQTlrHMznufy0ivJlFmP9hGP8GgTE1ErM3ewwE1 bby4j1rv9HJlihkMQUElqkPmLpIvuU8lPl03PV+Pz62z9v4JFQ2KKk3jmZ1HEWerD46450 Hxsxt8Pv2rwuMhRoPyUOgTXIXaP44Oz5ZCN84rNvIH46dxTWIM0452/9Rmjffw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1651525841; a=rsa-sha256; cv=none; b=IY0zzXf7rRLjXsm7+eifpAnqRH1ghRx/LcdRZknn2Ajuwjtcdu5S8ZtiWcL3ZIYX7a88sA i89rSIVUzEz2rw0RSyq/j4laRiw6ozMKSbRSuy+bhAja3Obip8RDsa1hmOK9Eg+D1QOVnz KTOJ5LX9LWC4FYUhB8eK83WQIdlshOlQMBu8UYUgRLwoiYsB72TR4+RrnhV+PsrTQbswhZ Oi+m5yC2Ubo9FJ5vqsUpvsb6vz1Ex2MIEnpzQumrURFXxBE4XrbQdHkmV4sbYH8xl/4zxd B3IVA3SFaPsmBd/7RmcE9xG+g4UN543FzOw+6EMMr5y7IH5Uco96GatjI3i4PQ== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=telenet.be header.s=r22 header.b=JfsYsMF8; dmarc=pass (policy=none) header.from=telenet.be; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -3.18 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=telenet.be header.s=r22 header.b=JfsYsMF8; dmarc=pass (policy=none) header.from=telenet.be; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: B91C729026 X-Spam-Score: -3.18 X-Migadu-Scanner: scn1.migadu.com X-TUID: LL0u0k2bYuU/ --=-K392Vqp8X5Gne6ZcdTs9 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable zimoun schreef op ma 02-05-2022 om 19:41 [+0200]: > > (*) In my case, this is not about supercomputers or computer > > clusters, but about having software run fast enough on the hardware > > that is available.=C2=A0 In some situations, that's a fancy > > supercomputer, but often a simple laptop can do ... if the software > > is sufficiently optimised. >=20 > I agree that HPC practitioners can burn some CPU cycles and recompile > the world if they care so much about run-time performances. >=20 > To me, it is the same trade-off by HPC folks as custom / performance > vs portable / pre-built. :-) I didn't mean rebuilding the world, only things like numpy, openblas, fftw and maybe glibc -- avoiding rebuilding dependents, with the grafts mechanism used by --tune. Greetiings, Maxime. --=-K392Vqp8X5Gne6ZcdTs9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iI0EABYKADUWIQTB8z7iDFKP233XAR9J4+4iGRcl7gUCYnBIthccbWF4aW1lZGV2 b3NAdGVsZW5ldC5iZQAKCRBJ4+4iGRcl7gFJAQDITHyK+cAXLN2lN7251ERFNO99 yEU4jVoF2nY/6ooX9wD+M3EfZP+IRa0QVnHmPAANtH3/Lpw3s3Os7fWSqNo79Q0= =Mhjf -----END PGP SIGNATURE----- --=-K392Vqp8X5Gne6ZcdTs9--