From owner-freebsd-net@freebsd.org Thu Oct 24 06:20:01 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 1F34915FA6B for ; Thu, 24 Oct 2019 06:20:01 +0000 (UTC) (envelope-from kob6558@gmail.com) Received: from mail-oi1-x243.google.com (mail-oi1-x243.google.com [IPv6:2607:f8b0:4864:20::243]) (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 46zHCh27hbz4YnR for ; Thu, 24 Oct 2019 06:20:00 +0000 (UTC) (envelope-from kob6558@gmail.com) Received: by mail-oi1-x243.google.com with SMTP id 83so19646269oii.1 for ; Wed, 23 Oct 2019 23:20:00 -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=sgrVlSbV6MmahOmAUkTEbGm+s0XEdXwEDmInQhavRyA=; b=Si9WOBpBJDSaQAxpf7/esDJrGW+2MeLryJ4ra7XSccHANI7f454gulowajkz4CWKZy YT75AE6VFUSgR/VrHZvAC3/n1xaOYInbUETQvXjhnPgKnZnnrSFYDGXfShQPstfffgJo pLzHVKP+AWCqWf6usMWNyra7IY7RTyd2TGgUNCOO5U5pRCG4LOEOhdwAh0rwc/5ZxWAW gExLJLvZBdJCoxCaQPwZUyegRwLsQYCddNjE/F+y3WIpNkRt9+bAFgeisA4CAZyCAe2i Vr4lM9kESns4738Ooq+6Qmy9A2ikT3It16FtIQnu/kQJ2+m8CCR5MXExq5+z+9DMhzst aZFw== 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=sgrVlSbV6MmahOmAUkTEbGm+s0XEdXwEDmInQhavRyA=; b=bxeD2NJKbEm5zBKaHdI71g7f05KU8+P5qv7fTTPx/hWVLrIc65SAtVW9urrEDzy/Te ioPnFuZ8P91J//wb2qbHrmJrWxbnxbMwx0x8W3DwsNxmX5ZvN4a83Ua7n8n3S6RNKRRe BuzsewgbhpAuaYHD3lVnbkFPU73L37oVEL9NmrvDnQ2uHVsvkRuQHlNWwKjHOxN1kvdx y22Hdf5mAeeIIIqZ0WcjnP0kY6z/PQHfegqcPXediClIZyC2kbhJJP622PtsJwiantA+ B2Vpm7KEW2R1K5djxWVOhVxuAbvWAum6Wi3MIXCQUkWaWBz0V36zXY7mfJtdlqFPsLkp A0Bw== X-Gm-Message-State: APjAAAWmC1hEgfoJbqIfF8gr8cSAGJ5aZJzQvvhIxnNf2hPLaxtD5+GT QIBvlKoL1fULl5CFBv8BoIouWZIqDq9viUfX8We+DA== X-Google-Smtp-Source: APXvYqwDZ4TuiF6oDHsQzrSJ7Yws+mlH43f2++Dnaq9BMDcM7CQxF9+iXrl8JrjE2xE3HD6/QfXo+o0LozFJ1iRTVgk= X-Received: by 2002:aca:e109:: with SMTP id y9mr3109795oig.27.1571897998793; Wed, 23 Oct 2019 23:19:58 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Kevin Oberman Date: Wed, 23 Oct 2019 23:19:42 -0700 Message-ID: Subject: Re: TCP Congestion Control To: vm finance Cc: freebsd-net X-Rspamd-Queue-Id: 46zHCh27hbz4YnR X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Si9WOBpB; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of kob6558@gmail.com designates 2607:f8b0:4864:20::243 as permitted sender) smtp.mailfrom=kob6558@gmail.com X-Spamd-Result: default: False [-1.70 / 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]; FORGED_SENDER(0.30)[rkoberman@gmail.com,kob6558@gmail.com]; FREEMAIL_TO(0.00)[gmail.com]; IP_SCORE(0.00)[ip: (2.53), 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]; FROM_NEQ_ENVFROM(0.00)[rkoberman@gmail.com,kob6558@gmail.com]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TAGGED_RCPT(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[3.4.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.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 06:20:01 -0000 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" >