From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id QO4KA4EG/V6FBAAA0tVLHw (envelope-from ) for ; Wed, 01 Jul 2020 21:56:17 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id OLJdOoAG/V6/OwAAbx9fmQ (envelope-from ) for ; Wed, 01 Jul 2020 21:56:16 +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 593BE9401CD for ; Wed, 1 Jul 2020 21:56:16 +0000 (UTC) Received: from localhost ([::1]:33562 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jqkiE-0006qg-Bu for larch@yhetil.org; Wed, 01 Jul 2020 17:56:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49848) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jqkh6-0005zj-IL for bug-guix@gnu.org; Wed, 01 Jul 2020 17:55:04 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:42310) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jqkh3-0000iq-Un for bug-guix@gnu.org; Wed, 01 Jul 2020 17:55:04 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jqkh3-0005OW-NW for bug-guix@gnu.org; Wed, 01 Jul 2020 17:55:01 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#41702: `guix environment` performance issues Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Wed, 01 Jul 2020 21:55:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41702 X-GNU-PR-Package: guix X-GNU-PR-Keywords: patch To: Lars-Dominik Braun Received: via spool by 41702-submit@debbugs.gnu.org id=B41702.159364044420663 (code B ref 41702); Wed, 01 Jul 2020 21:55:01 +0000 Received: (at 41702) by debbugs.gnu.org; 1 Jul 2020 21:54:04 +0000 Received: from localhost ([127.0.0.1]:53856 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jqkg8-0005NC-Mc for submit@debbugs.gnu.org; Wed, 01 Jul 2020 17:54:04 -0400 Received: from eggs.gnu.org ([209.51.188.92]:34336) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jqkg6-0005Mi-FR for 41702@debbugs.gnu.org; Wed, 01 Jul 2020 17:54:03 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:47296) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jqkg1-00006e-4B; Wed, 01 Jul 2020 17:53:57 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=51352 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jqkg0-0000av-4u; Wed, 01 Jul 2020 17:53:56 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <20200604082316.GA3146@zpidnp36> <87mu5gtbwg.fsf@gnu.org> <20200608090453.GC3166@zpidnp36> <87k10hp6ba.fsf@gnu.org> <20200609091522.GB8597@zpidnp36> <87wo3sjjdw.fsf@gnu.org> <87y2o3zf00.fsf@gnu.org> <20200701112453.GB25179@zpidnp36> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 14 Messidor 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: Wed, 01 Jul 2020 23:53:54 +0200 In-Reply-To: <20200701112453.GB25179@zpidnp36> (Lars-Dominik Braun's message of "Wed, 1 Jul 2020 13:24:53 +0200") Message-ID: <87eepuyk99.fsf@gnu.org> 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-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 41702@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: n6ndoyvqI9gr Hi, Lars-Dominik Braun skribis: >> What we need is Guile-SSH bindings for =E2=80=98ssh_get_fd=E2=80=99, whi= ch would allow >> us to get at the actual file descriptor after the connection has been >> opened, and to set TCP_NODELAY there: >>=20 >> http://api.libssh.org/stable/group__libssh__session.html#gafe509fcea47= 714b5cd277d1e35e83276 >>=20 >> It=E2=80=99s not 100% clear though if it returns that =E2=80=9Cright=E2= =80=9D FD when there=E2=80=99s a >> proxy command. > wouldn=E2=80=99t it be easier to add the SSH_OPTIONS_NODELAY option (see = [1]) to > guile-ssh (should be trivial[2]) and let guile-ssh handle all the connect= ion > stuff without touching the socket? Or do we need the raw socket elsewhere? Good idea, I had overlooked that possibility. Would you like to send them a patch? Thanks, Ludo=E2=80=99.