From owner-freebsd-net@freebsd.org Tue May 29 13:05:56 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5CFCAF7B325 for ; Tue, 29 May 2018 13:05:56 +0000 (UTC) (envelope-from satan@ukr.net) Received: from hell.ukr.net (hell.ukr.net [212.42.67.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E5F2E6960D for ; Tue, 29 May 2018 13:05:55 +0000 (UTC) (envelope-from satan@ukr.net) Received: from satan by hell.ukr.net with local ID 1fNeK1-000Flo-Lq ; Tue, 29 May 2018 16:05:53 +0300 Date: Tue, 29 May 2018 16:05:53 +0300 From: Vitalij Satanivskij To: "Muenz, Michael" Cc: freebsd-net@freebsd.org Subject: Re: GRE/gif/netgraph tunnel speed on 10Gbit channel Message-ID: <20180529130553.GA60437@hell.ukr.net> References: <20180529071733.GA18182@hell.ukr.net> <58deda3e-6eda-bade-0461-97014a64182e@yandex.ru> <20180529100544.GA58705@hell.ukr.net> <347581ff-1f32-c8c4-dce8-9c4632f4cd84@yandex.ru> <20180529105853.GA59230@hell.ukr.net> <20180529113304.GA59501@hell.ukr.net> <2d73fb0b-4e2f-d130-de95-88f7b8bf20ae@spam-fetish.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2d73fb0b-4e2f-d130-de95-88f7b8bf20ae@spam-fetish.org> User-Agent: Mutt/1.10.0 (2018-05-17) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 May 2018 13:05:56 -0000 Am 29.05.2018 um 13:33 schrieb Vitalij Satanivskij: MM> Can you try MTU 1400 on GRE0 and MSS of 1300 just for testing? MM> With this values I get 4600Mbit sending and 1400Mbit receiving with MM> iperf and 10 parallel streams. MM> UUUPSS looks like i have problem with metodology I'm use iperf3 and even with -P10 or run's in parallel (on diferents ports) it show summary of +-2gbits max While iperf v2 show 4+gbit's [ ID] Interval Transfer Bandwidth [ 11] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 10] 0.0-20.0 sec 910 MBytes 382 Mbits/sec [ 9] 0.0-20.0 sec 503 MBytes 211 Mbits/sec [ 8] 0.0-20.0 sec 1.66 GBytes 714 Mbits/sec [ 12] 0.0-20.0 sec 2.25 GBytes 965 Mbits/sec [ 7] 0.0-20.0 sec 368 MBytes 154 Mbits/sec [ 6] 0.0-20.0 sec 1.90 GBytes 815 Mbits/sec [ 5] 0.0-20.0 sec 900 MBytes 378 Mbits/sec [ 4] 0.0-20.0 sec 833 MBytes 349 Mbits/sec [ 3] 0.0-20.0 sec 1.11 GBytes 478 Mbits/sec [SUM] 0.0-20.0 sec 10.4 GBytes 4.44 Gbits/sec It's very strange for me but at last it mutch more beter. Ok now question is - which maximum speed we can get from gre on 10Gbit link's. ^)