From nobody Tue Mar 12 19:14:17 2024 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TvNcG2zMTz5FL6h; Tue, 12 Mar 2024 19:14:22 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Sectigo RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TvNcF67G4z4KbS; Tue, 12 Mar 2024 19:14:21 +0000 (UTC) (envelope-from tuexen@freebsd.org) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1140:c3d:ada9:be50:695b:7583]) (Authenticated sender: micmac) by drew.franken.de (Postfix) with ESMTPSA id 6B9D8721E2817; Tue, 12 Mar 2024 20:14:18 +0100 (CET) Content-Type: text/plain; charset=utf-8 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.500.171.1.1\)) Subject: Re: Request for Testing: TCP RACK From: tuexen@freebsd.org In-Reply-To: Date: Tue, 12 Mar 2024 20:14:17 +0100 Cc: current@freebsd.org, net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <486915F0-456B-4B09-A8BC-93BBA79C4CA1@freebsd.org> References: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org> To: Nuno Teixeira X-Mailer: Apple Mail (2.3774.500.171.1.1) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, T_SCC_BODY_TEXT_LINE autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4TvNcF67G4z4KbS > On 12. Mar 2024, at 14:39, Nuno Teixeira wrote: >=20 > Hello, >=20 > I'm curious about tcp RACK. >=20 > As I do not run on a server background, only a laptop and a rpi4 for > poudriere, git, browsing, some torrent and ssh/sftp connections, will > I see any difference using RACK? > What tests should I do for comparison? You might want to read the following article in the FreeBSD Journal: = https://freebsdfoundation.org/our-work/journal/browser-based-edition/rack-= and-alternate-tcp-stacks-for-freebsd/ There is no specific area for testing. Just test the stack on the systems you use with the workload you use and report back any issues... Best regards Michael >=20 > Thanks, >=20 > escreveu (quinta, 16/11/2023 =C3=A0(s) 15:10): >>=20 >> Dear all, >>=20 >> recently the main branch was changed to build the TCP RACK stack >> which is a loadable kernel module, by default: >> = https://cgit.FreeBSD.org/src/commit/?id=3D3a338c534154164504005beb00a3c6fe= b03756cc >>=20 >> As discussed on the bi-weekly transport call, it would be great if = people >> could test the RACK stack for their workload. Please report any = problems to the >> net@ mailing list or open an issue in the bug tracker and drop me a = note via email. >> This includes regressions in CPU usage, regressions in performance or = any other >> unexpected change you observe. >>=20 >> You can load the kernel module using >> kldload tcp_rack >>=20 >> You can make the RACK stack the default stack using >> sysctl net.inet.tcp.functions_default=3Drack >>=20 >> Based on the feedback we get, the default stack might be switched to = the >> RACK stack. >>=20 >> Please let me know if you have any questions. >>=20 >> Best regards >> Michael >>=20 >>=20 >>=20 >=20 >=20 > --=20 > Nuno Teixeira > FreeBSD Committer (ports)