From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id SHwTABfvz19+CgAA0tVLHw (envelope-from ) for ; Tue, 08 Dec 2020 21:24:39 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id UGB8Nxbvz1/NPAAAB5/wlQ (envelope-from ) for ; Tue, 08 Dec 2020 21:24:38 +0000 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 A213894030E for ; Tue, 8 Dec 2020 21:24:38 +0000 (UTC) Received: from localhost ([::1]:43764 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kmkTN-0001Zh-KY for larch@yhetil.org; Tue, 08 Dec 2020 16:24:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60354) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kmjXj-0008MX-LG for guix-patches@gnu.org; Tue, 08 Dec 2020 15:25:03 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:48384) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kmjXj-0004Ei-EI for guix-patches@gnu.org; Tue, 08 Dec 2020 15:25:03 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kmjXi-0006KT-9y for guix-patches@gnu.org; Tue, 08 Dec 2020 15:25:02 -0500 X-Loop: help-debbugs@gnu.org Subject: [bug#45102] [PATCH 0/4] Making fewer 'stat' calls during startup Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Tue, 08 Dec 2020 20:25:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45102 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Mathieu Othacehe Cc: 45102@debbugs.gnu.org Received: via spool by 45102-submit@debbugs.gnu.org id=B45102.160745907824292 (code B ref 45102); Tue, 08 Dec 2020 20:25:02 +0000 Received: (at 45102) by debbugs.gnu.org; 8 Dec 2020 20:24:38 +0000 Received: from localhost ([127.0.0.1]:59930 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kmjXK-0006Jk-Fy for submit@debbugs.gnu.org; Tue, 08 Dec 2020 15:24:38 -0500 Received: from eggs.gnu.org ([209.51.188.92]:38932) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kmjXI-0006JV-O2 for 45102@debbugs.gnu.org; Tue, 08 Dec 2020 15:24:37 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58602) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kmjXD-000463-GE for 45102@debbugs.gnu.org; Tue, 08 Dec 2020 15:24:31 -0500 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=53432 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kmjXC-00034l-PX; Tue, 08 Dec 2020 15:24:30 -0500 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <20201207152159.28551-1-ludo@gnu.org> <871rg0tnjj.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 18 Frimaire an 229 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: Tue, 08 Dec 2020 21:24:29 +0100 In-Reply-To: <871rg0tnjj.fsf@gnu.org> (Mathieu Othacehe's message of "Tue, 08 Dec 2020 14:50:08 +0100") Message-ID: <875z5cujuq.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -2.81 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Queue-Id: A213894030E X-Spam-Score: -2.81 X-Migadu-Scanner: ns3122888.ip-94-23-21.eu X-TUID: zxq4k3LpGm/3 Hi, Mathieu Othacehe skribis: >> The semantic difference should be invisible to users: their modules >> are still visible and usable in manifests, in =E2=80=98guix repl=E2=80= =99, etc.; they >> just cannot take precedence over modules from Guile and from the >> channels. For instance, one cannot define a (gnu packages base) >> module or (ice-9 rdelim), drop it in $GUILE_LOAD_PATH, and have that >> module picked up in lieu of the original one. I think that=E2=80=99s a >> reasonable tradeoff. > > I think that's reasonable too. I tested it locally and have the > following command: > > strace -c -e stat,openat ./pre-inst-env guix > > drop from 1671 calls to 1017 calls, which is nice. You should try: ./pre-inst-env strace -c stat guix but even then you=E2=80=99ll get more =E2=80=98stat=E2=80=99 calls than the= =E2=80=98guix=E2=80=99 command provided by =E2=80=98guix pull=E2=80=99. You can run, say: strace -c $(make as-derivation)/bin/guix > The patchset looks good to me. Cool, thanks! Ludo=E2=80=99.