From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x232.google.com (mail-oi0-x232.google.com [IPv6:2607:f8b0:4003:c06::232]) by lists.bufferbloat.net (Postfix) with ESMTPS id 520D83ECFF for ; Wed, 23 Dec 2015 09:08:14 -0500 (EST) Received: by mail-oi0-x232.google.com with SMTP id y66so123982971oig.0 for ; Wed, 23 Dec 2015 06:08:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=LZJIU+pcXqSrB6ttQDbvBiWl6s8Brj80NwEHHuyOPkA=; b=uzg0nlkz7KV2MotBBblk2zPoa9Yify1KQZQnbWZNt+rVP8zN0unZ+au10MktAwN2UQ ZOJR09KnrAVFUinpQAWYqdncMjAtJf/DpFr8bujhFjOD6/dxRyfDAADVf4Fg3K6ShYh3 5MEvmw6Ia4OV19CsimTZYFGfC4DMTmjZbAQEREOImHVM+N5oX/G+w8DIgNcDE4Jn/xxE mNC9rhr1TAAjf0Mua+dHsVUXt6K8HpF6AfopmP+rF78KmCH09yQ98iYCgVhOjxwya/zi zPeg33H0XlO1zJLjzDxJoFaBTXYxE8wy7jEGYOvKpglYw7cQCTbZo38qbdOcAyhCdNzk 56lw== MIME-Version: 1.0 X-Received: by 10.202.79.5 with SMTP id d5mr10032747oib.121.1450879693692; Wed, 23 Dec 2015 06:08:13 -0800 (PST) Received: by 10.202.187.3 with HTTP; Wed, 23 Dec 2015 06:08:13 -0800 (PST) Date: Wed, 23 Dec 2015 15:08:13 +0100 Message-ID: From: Dave Taht To: cake@lists.bufferbloat.net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Cake] longer rtt codel/cake testing with remote servers X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Dec 2015 14:08:14 -0000 I have long maintained a set of servers suitable for testing at a range of RTTs, but did not publish them because I'd had no desire to maintain them personally [1] for wide use, they are "in the cloud", so I do not trust their network behavior not much past 100mbit, I frequently used shapers on them merely to get interesting bandwidths at varieties of RTTS, and they cost 10 bucks a month each which I have sometimes needed for food. If people truly want to get a feel for how to modify codel without a lab handy, these boxes would be good to test against - and have long term flent data sets against, at typical home bandwidths, from your home. The most basic multi-rtt tests are the rtt_fair tests, but the rrul and tcp_upload/dlownload tests are also good for seeing the interactions on long rtts... and it's always good to do occasionally do a test to, like, tokoyo and wonder why tcp even works at all. I would like to find flent servers in finland, russia, australia/nz spain, and elsewhere in the eu. [1] These machines are active subdomains of bufferbloat.net. netperf-west: defunct (was snapon) netperf-east I do not know where this is actually netperf-eu - this is toke's server somewhere flent-atlanta # georgia flent-dallas # texas flent-freemont # california flent-london # england - this is also taht.net, at the moment flent-newark # new jersey flent-tokyo # japan [1] maintainer wanted. Also could use d-itg set up on them. Securely. I also do not remember if they all have ecn enabled by default or not. Several run the fq qdisc. I am in the progress of migrating several to kvm from xen. I would argue for consistently using sch_fq on these servers with ecn always enabled. I will check today. Dave T=C3=A4ht Let's go make home routers and wifi faster! With better software! https://www.gofundme.com/savewifi