From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-x72c.google.com (mail-qk1-x72c.google.com [IPv6:2607:f8b0:4864:20::72c]) (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 127EB3B2A4 for ; Mon, 7 Sep 2020 13:20:59 -0400 (EDT) Received: by mail-qk1-x72c.google.com with SMTP id w12so13143709qki.6 for ; Mon, 07 Sep 2020 10:20:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:reply-to:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language; bh=z48Fq2rmY7EoQJ75mYnfRXhnUDP/dcwJTswLCTtDRoo=; b=PxRSw61PVKT/qCG9UyO4iPNkwhapLwmEnV7vPJ9CW0PRIrxhZWPxTDV8Pg7hoKu73X 3UflXZEaqZ4AIj5xAyNZ8W7T/gpPjNjaW39DhLX7uRE8NFk1zgg4Ev6kl/3+EayRAcjW cPBgputGJfCi8ga//su4ECcqJcHQcmakWTnN7nQi34RfqFSxM8Ro7B+ImitmRNrCDVNm J5tV1ztDsylQjOCO5wwBf0TRnvezpeGwNCi2wZ5wd0fispoMXZicMkyTqVueyIExgL2r SDdSeq+9UQ6IFBXW++wyCuw79vcFdnpZdih4lfqbNgp9VOe1abR++7o5YWd5wNqWPI9F K7yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:reply-to:to:cc:references :message-id:date:user-agent:mime-version:in-reply-to :content-language; bh=z48Fq2rmY7EoQJ75mYnfRXhnUDP/dcwJTswLCTtDRoo=; b=Z8F82SoB57CBj8iPgxYhDPawOVuZRsYR8NU/OOxJMD2gNhhYrEmooA0zTc9QLV/HAm Alc2hU9epYc85YvhVk2iO3AnzqOBFkUxb8dM/ATYmxWkcCxR3CwRXUxAQs/IjqBIcErC mnRHIXOAsWj7EzQE+mqHPQz8b2TZJ6/o78a51f3K4xtDv2gP9ziEf4iOyvp1vrRsuslb w8T4bVICN+DNHN6Wk4awrwzpHZy7FoUJi8bes/eLdj+9r88Zu5ZXOGneDjzcZhV4nGPV YQ+ySDFHXj6lIwVFmqEEQNePj4exhTmN5mG6rhLLkQ4H0wryMQctiEwudVdRedWBUde9 6MQA== X-Gm-Message-State: AOAM530Opz7TgvdnQv32uEan6pgYF1ZMp4rtgLCLakn157cCKZJ1Tq0+ CdvNhe5u814my2oFMlMUY+pF36p63Kg= X-Google-Smtp-Source: ABdhPJyTGWQg0GVRpQm55O6X1RUl9bizuqchd/2ytC9yYgpq1Ro2MR4rYbi3LI/0fL2x2tqYsILAcw== X-Received: by 2002:ae9:ebd0:: with SMTP id b199mr20279415qkg.39.1599499258181; Mon, 07 Sep 2020 10:20:58 -0700 (PDT) Received: from ?IPv6:2607:fea8:561f:e34d::3930? ([2607:fea8:561f:e34d::3930]) by smtp.gmail.com with ESMTPSA id v42sm12456359qth.35.2020.09.07.10.20.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Sep 2020 10:20:57 -0700 (PDT) From: David Collier-Brown X-Google-Original-From: David Collier-Brown Reply-To: davecb@spamcop.net To: Dave Taht , David Collier-Brown Cc: bloat References: <87k0x6os8t.fsf@toke.dk> <1916fe37-04f5-137b-0ec5-a82fa9c3898e@indexexchange.com> Message-ID: <727bcf44-e3b5-f6ff-3063-e8b080dfb6e1@rogers.com> Date: Mon, 7 Sep 2020 13:20:55 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <1916fe37-04f5-137b-0ec5-a82fa9c3898e@indexexchange.com> Content-Type: multipart/alternative; boundary="------------C2AC445DDDCB33DCC28FE4BA" Content-Language: en-US Subject: Re: [Bloat] How about a topical LWN article on demonstrating the real-world goodness of CAKE? 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: Mon, 07 Sep 2020 17:20:59 -0000 This is a multi-part message in MIME format. --------------C2AC445DDDCB33DCC28FE4BA Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Just FYI, I did two tests today, in my Copious Spare Time 1. a DSLReports speed test using an IQrouter, and 2. a Skype "tap" test, with and without the de-bloated router The router did exactly what I expected: it vaporized the bloat-induced delay provided by Rogers. My previous bloat-induced lag was between 700 and 900 milliseconds under load, and an unimpressive 240 milliseconds when idle.  With a de-bloated router, lag was 40 milliseconds maximum, whether idle or loaded, and about 30 millisecond minimum, or a 3500 km round-trip, appropriate for the distances to the measurements points. By comparison, Rodger-Dogers was giving me lag times more appropriate for a test to Ankara, Turkey. The tap test was interesting, but less helpful. I connected to 1-909-390-0003, which is an instant-echo server, used to test voice telephones. If you connect to it and say something, it will echo it back to you. If you tap on your microphone, it's fairly easy to get an idea of how much delay there is. Alas, with and without bufferbloat mitigation, it took about a second echo back the tap, so it's not the kind of instantly-obvious success test I'm searching for, to demonstrate the goodness of CAKE to my grandmother (;-)) --dave -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest davecb@spamcop.net | -- Mark Twain --------------C2AC445DDDCB33DCC28FE4BA Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Just FYI, I did two tests today, in my Copious Spare Time

  1. a DSLReports speed test using an IQrouter, and
  2. a Skype "tap" test, with and without the de-bloated router

The router did exactly what I expected: it vaporized the bloat-induced delay provided by Rogers.

My previous bloat-induced lag was between 700 and 900 milliseconds under load, and an unimpressive 240 milliseconds when idle.  With a de-bloated router, lag was 40 milliseconds maximum, whether idle or loaded, and about 30 millisecond minimum, or a 3500 km round-trip, appropriate for the distances to the measurements points. By comparison, Rodger-Dogers was giving me lag times more appropriate for a test to Ankara, Turkey.

The tap test was interesting, but less helpful. I connected to 1-909-390-0003, which is an instant-echo server, used to test voice telephones. If you connect to it and say something, it will echo it back to you. If you tap on your microphone, it's fairly easy to get an idea of how much delay there is.

Alas, with and without bufferbloat mitigation, it took about a second echo back the tap, so it's not the kind of instantly-obvious success test I'm searching for, to demonstrate the goodness of CAKE to my grandmother (;-))

--dave
-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb@spamcop.net           |                      -- Mark Twain
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