From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 2C8BE3B29E for ; Tue, 30 Jul 2019 23:15:53 -0400 (EDT) Received: by mail-io1-xd2c.google.com with SMTP id o9so29487722iom.3 for ; Tue, 30 Jul 2019 20:15:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=yVaBPfw3B1XeV62gqrku1AQnMlCgcI1lLPvzVPNztvA=; b=ZO0llINBYKrbKdVhJ8S4f4RWscB/AlMBFt0R1TcZ36Y1CoPgdcAN9SvGX1proRhTPk WyHW42obMgDlmTbwdXiwjGoV8v54EZB1CGOSfVOcmTLexoJk0h+7jQMYGFuMN8+3IhWg +PKrWtJ3m6OF4noD1YamLNgqn8hxk/HW8aZaJ86uAf/o11rJSrZNiOrZQMLb30VmAipq wibriOTmRbF6e6bvkLBd2CQXPB10HU+DfJFmw+MQF1Vr+eX7yani1/Csua8gBwHtSUf5 mWwfM7R8CaLJBPJHi0WdiJvZBOeTOxq0MJrdUGIz5epL+ZMfVEHkt1yjl6x8RYb1grnX b1hQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=yVaBPfw3B1XeV62gqrku1AQnMlCgcI1lLPvzVPNztvA=; b=pjfNlfLjePNocF9xqQzOqnE311kUISXXA73r2Ry2ywZoJljjah2IxzcmuHzbMY3LE0 PzrHaF58EQ1ugI4PWsOGI65oRWbHuHVYUqtB1UdOYhiVFbgvLe6vckfJIVuw3DJd0dCo A2Bf7z2fhGo7FaxnqRFj9m1wu27CGsIVEPMyq/w9kU3sc6O9IkwBZDju9tv902v2zbW4 2y+eXJelQlwFxHlFkbN1ifTF4nZ/AXeOPr1BzSkczrrrEiMNPTUgn6qm/JbGdpesRC+e nfM87FzG1ozLXF0amHrkVOae7gOpLIWzzn42TKPG4JXhZ8b3Yr1HSggqTO+fbJCzXB99 meRg== X-Gm-Message-State: APjAAAV6b2HJ6cd6k6tkF0pl9N8Vm1MG+uiOQ2XqfLOPgYAyU0fZ7Whg 0Kcuwc6h3BpDDuzbHeKMKfkOFMefV4xuz8Gfj04= X-Google-Smtp-Source: APXvYqzrx1upf1Zfe+UpJALpyZcwnmnmC6sWJrisgqCU4jM3XE+0QpDLXIBJubBKHQj0gO5zJ7KU4fEBCnQ2Z0BZ3bk= X-Received: by 2002:a5e:c30f:: with SMTP id a15mr66264646iok.246.1564542952573; Tue, 30 Jul 2019 20:15:52 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Tue, 30 Jul 2019 20:15:40 -0700 Message-ID: To: jendaipou palmei , shefaligups11 Gups , "Mohit P. Tahiliani" , bloat , flent-users Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Bloat] an sce enabled flent server is now up in India, testers wanted X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Jul 2019 03:15:53 -0000 The new linode data center finally went up last week in mumbai. Aside from the ones in singapore and japan, this is the furthest "out" of any flent servers we have. sce-mumbai.taht.net # name might change Right now this server is just under test!! it's the first kernel I've had up with spectre mitigations, in a new dc, it's on a new vm substrate, on a new version of ubuntu (19) and connectivity between it and the rest of my cloud is "interesting" with some signs there's some diffserv on ipv4 happening. So this is just a test of a test idea for now. I would *dearly* like to get a grip on multiple issues in india that have been reported. * IPv4 vs IPv6 availability * Traceroutes (how many layers of nat?) * Diffserv mangling * ecn mangling * flent tests over wifi from a variety of coffee shops and other locations with it * Tests from home of each major ISP (how many are there?) * Tests taken in areas with really lousy wifi like train stations I'd love to generically know paths and rtts to this server from around the world also. One thought I had was to actually pay students to go forth and test from each location, I figured buying lunch for 10 students for 10 weeks in 30+ different locations might be enough to get somewhere. (?) Too broke to do that at the moment... don't know how many students we could get... have no idea as to how common OSX and linux clients are... Originally I'd planned to do this to just test bbrv2 vs cubic, (since it's perpetually reported that policing is prevalent) but presently what's up is a 100Mbit htb + fq_codel_fast implementation with an sce_threshold of 262us which is more than enough to trigger it nearly all the time. I'm still sorting out what to test, but at 10 bucks a month for the first server seemed like a good idea. The 5/month nanode vm I'm testing elsewhere. It's got netperf, irtt, and fping. iperf2 is also on this server. If there are any other test tools I should roll out, I in general need to do a major rebuild of much of the flent fleet since the sack and rack cves came out. --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740