From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-x833.google.com (mail-qt1-x833.google.com [IPv6:2607:f8b0:4864:20::833]) (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 3030B3B29D for ; Sun, 8 Nov 2020 17:07:58 -0500 (EST) Received: by mail-qt1-x833.google.com with SMTP id 7so425091qtp.1 for ; Sun, 08 Nov 2020 14:07:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=LuegPUETtQyrYaQrcWeQ8lfOJhtjpb+l3EXst4hN7b4=; b=SVT9GxPVMUVCpu+CWE/aOyu1C2aFJLoBLstafMn1XNLvgUlxyYX2w0UjwCgY5vcLtm oAbslnFHmWnD+wBbb7pt5NCwNm4I9sMzKbCtCRLsoqMy1oPjkNOUHJHwXsxP5cbjip/2 qWlsgT/6Q4fDTU+RRBSdUUbil+Gv+xSAm2Gi4nDKZQGy8//Db9rbYXGEr6wf6Ds5Likb sF4cYQ6/THqda8egs1lB53Q9zix2o/VCLvWwzuADKozxbvTQ8Zn99ytpFVyFs93IGWPU C7NO40F3QfRQWHySS7legimUig4MRA+hXhuUygDBGPAVtIGlAMnN1P8BIb7sTSPaRDH2 qDfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=LuegPUETtQyrYaQrcWeQ8lfOJhtjpb+l3EXst4hN7b4=; b=HGgl/7w/8lqiJJddRu6kYy8AyNiFqRIybUXxIil0HIf+vAq5srBHwh/+52AS8MYCsa 75T6/D2x8bZ9P41Dk7sdoVf4U+KjscrJAPHFTEd2VooDAjfH+J6H22HgJ6IWsgHK/gi2 btyOVRDkF1Nix43T9Q9F6BSlIQWDRnmssMoUVTchYpEtHLbY+TaqgmH2wcuBroUX3MEn RcDvH7mvKbAX9xq8vmgfLK6ZF3eD5vVndw8CM31NFX8wnsQX5TPJQn4VJx40zoDW+m6/ lp3IpD75pCunl0QlRqjAbeyBW/xVAXUKdv/rtwwtUxOME45mfqhbT+bl0QT5DDEnvET7 JrXQ== X-Gm-Message-State: AOAM5333eXh1lqSrO6/K/WRcpqMxvoWFxrmH5OvjYIpRPsgxdbOMsYMg d32Rw9RBsA79Fu7mKBuVoX7a7dSZPnaEfQ== X-Google-Smtp-Source: ABdhPJx9Rzod4AAZWyPwaT9TDYxobe3CO6YIR2DgvBMwHLZBBATQuAo1oFCoVFp1DoEb5TKi5EIpUg== X-Received: by 2002:ac8:1482:: with SMTP id l2mr10623161qtj.75.1604873277351; Sun, 08 Nov 2020 14:07:57 -0800 (PST) Received: from [192.168.2.19] (bras-vprn-rmhlon3411w-lp130-04-174-88-69-45.dsl.bell.ca. [174.88.69.45]) by smtp.gmail.com with ESMTPSA id u24sm4667457qtv.83.2020.11.08.14.07.56 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 08 Nov 2020 14:07:56 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) From: Arshan Khanifar In-Reply-To: <87h7q3solo.fsf@toke.dk> Date: Sun, 8 Nov 2020 17:07:55 -0500 Cc: bloat@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: <6315456F-AB57-4FDB-9D26-8AA2BB0DF687@gmail.com> References: <87mtzwt47a.fsf@toke.dk> <87wnyzswy9.fsf@toke.dk> <87h7q3solo.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3608.120.23.2.4) Subject: Re: [Bloat] Comparing bufferbloat tests (was: We built a new bufferbloat test and keen for feedback) 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: Sun, 08 Nov 2020 22:07:58 -0000 Hello Toke! > Curious to know why you picked this instead of, say, something from > speed.cloudflare.com (since you're using that for the speed tests = anyway)? The reason we chose the static file instead of cloudflare was because = the ping to Cloudflare from where I am reported a pretty high number = (around 20ms), and we also noticed that there was an issue with the = network path to cloudflare in general. We were getting some packet = losses when doing a normal ping, and there were some latency spikes that = would happen regularly.=20 > Yeah, allowing some ramp-up time before determining the bandwidth = seems > reasonable, but it's not generally possible to just pick a static = number > of (say) seconds to chop off... Having the graph over time helps > sanity-check things, though. Yeah it=E2=80=99d be useful to have a real-time graph.=20 > Also, a continuous graph of latency samples over time (for the whole > duration, including idle/upload/download) is usually very instructive > when plotting such a test. I had that in the earlier version of the test that I sent to you = previously. It would make the test look a bit complicated though, so we = should maybe have an advanced view, where the user can see these charts. > The test at speed.cloudflare.com does seem to plot real-time upload > bandwidth; is that a privileged operation for themselves, or = something? It=E2=80=99s not =E2=80=9Cthat=E2=80=9D real time, they start from a = small upload size, and progressively increase the file size. They will = calculate the average bandwidth for each upload and show it on the chart = that they have. I want to have the test continuously do a big upload, = and have real-time measurements. > If you're reporting standard deviation, I'd just label it as such. One > good definition for jitter is IPDV: > https://en.wikipedia.org/wiki/Packet_delay_variation Thanks! This is great!=20 >=20 >> @Toke H=C3=B8iland-J=C3=B8rgensen >>> Also, what are the shields below the grade supposed to mean? Do they >>> change depending on the result? On which criteria?=20 >=20 > Right, cool; explaining this on the page might be useful ;) Yeah we=E2=80=99ll change the texts and add more explanations in the = end.=20 > Just having the test be on a separate (static) page would be the = obvious > fix ;) Correct hahah. I=E2=80=99ll bring that up with the team.=20 Thank you so much for all the help! Arshan=