From owner-freebsd-net@freebsd.org Thu Oct 24 06:30:05 2019 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id AF58F15FE8D for ; Thu, 24 Oct 2019 06:30:05 +0000 (UTC) (envelope-from vm.finance2@gmail.com) Received: from mail-il1-x131.google.com (mail-il1-x131.google.com [IPv6:2607:f8b0:4864:20::131]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46zHRJ0V1Bz4ZBV for ; Thu, 24 Oct 2019 06:30:03 +0000 (UTC) (envelope-from vm.finance2@gmail.com) Received: by mail-il1-x131.google.com with SMTP id z10so21302186ilo.8 for ; Wed, 23 Oct 2019 23:30:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=5+Tcd9+IAEiye5UMJIyk3RX9fNeNDF+vsxlbbyQstn8=; b=Xgvx5I+RmrZ+PS44I9N+Lv5m8T+nrtPUfaDZLf31HJwDOdVLS4uo1M/ybmUPtWwJQD ENwe76zn1Ztw5rVjX6+L7cnNGTIOLlHmHEbyma5m9OAki220qnUibo3pcoCn+/0W+bn2 krkSVPZJboU6FfH/UL+99nUFMYM9CalleMXEN7ipXbF6ebbRgmcUeZR2U53ZEmQOc8o/ YRQ2LuKjOU2Re0cGwtsAjgswWULXZC6ayI472qjBc7Gx/TYed719T/Gz+tiHf4ymqYZM gmaOi5ZdZxyWF1kpELj8FOqBolrHZi/jLgcZHllr/6pFse1ssURZyWhUyNtBE1oAF0S3 QBMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=5+Tcd9+IAEiye5UMJIyk3RX9fNeNDF+vsxlbbyQstn8=; b=TFk8z6Q+0f/2IJFmQ8JQ+BbFSooPELINSSfvyYhmwzAS3EwAAgjDUbK6lyMlq8Gsfe tSnmo7GtNq9akZOX6cHPs+MV45IsXv1w1fCbE6QnBkT1LTalkbazM7kQqCqkj10JExvA J5pSLeCki1DHLmUe/fXiUsesJSopZ66o5lOkQQn/Qo3BouDHu/ke8KfaMp8yr+nZfws0 xZBd3olBaSsAKytMOjkFWW7BKdomwWtEmEaHFM3ZOj9yQpzFYQCDPc1lJkEpDye9t0UY 7D3cSxtJnn7Tk71fEyVSglVOm7VpOzBTmbE4MgmJh1sTeXSBtMAeYc3Wm2HUgZ1LEcbe bXIQ== X-Gm-Message-State: APjAAAWjnzf9uTG6aIXJhz5a24Dm8LdFiQwMuhm8+W3fiyOGYCvOCKEw CQHOxsdOhbVlFcRav2Vm/ubj3dWGfA/oFVADiSU= X-Google-Smtp-Source: APXvYqxE2H+JDVnmLNasfqQ+H5jRY3m2t5m2tyLNqSxvKENpM3b48v0y5oTr24LetnS6/n+J1ATKi4fWwW6xwv+GcGY= X-Received: by 2002:a92:c686:: with SMTP id o6mr12345390ilg.27.1571898602915; Wed, 23 Oct 2019 23:30:02 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: vm finance Date: Wed, 23 Oct 2019 23:29:50 -0700 Message-ID: Subject: Re: TCP Congestion Control To: Kevin Oberman Cc: freebsd-net X-Rspamd-Queue-Id: 46zHRJ0V1Bz4ZBV X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Xgvx5I+R; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of vmfinance2@gmail.com designates 2607:f8b0:4864:20::131 as permitted sender) smtp.mailfrom=vmfinance2@gmail.com X-Spamd-Result: default: False [-2.00 / 15.00]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; URI_COUNT_ODD(1.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(0.00)[ip: (-7.86), ipnet: 2607:f8b0::/32(-2.42), asn: 15169(-2.06), country: US(-0.05)]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; TAGGED_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[1.3.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Oct 2019 06:30:05 -0000 Ok - I see there is a socket option to pick a different cc per-socket basis. Any experiences on loading / using different cc per socket...does it work seamlessly? Thanks! On Wed, Oct 23, 2019 at 11:19 PM Kevin Oberman wrote: > Have you loaded kernel modules for other algorithms? I believe only > newreno is in the default kernel. "man 4 mod_cc" for available modules and > other information. > -- > Kevin Oberman, Part time kid herder and retired Network Engineer > E-mail: rkoberman@gmail.com > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 > > > On Wed, Oct 23, 2019 at 11:04 PM vm finance wrote: > >> Hi, >> >> We can set per-socket congestion control under Linux, but not under >> FreeBSD >> (12.0). >> The current available and allowed is only newReno: >> net.inet.tcp.cc.available: newreno >> net.inet.tcp.cc.algorithm: newreno >> >> Any thoughts on why FreeBSD chose not to allow different cc to be set per >> socket? >> AFAIK, it would get complicated to have different sessions having >> different >> congestion algos. >> >> Thanks for any pointers! >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> >