From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x235.google.com (mail-pg0-x235.google.com [IPv6:2607:f8b0:400e:c05::235]) (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 7682C3B29E for ; Wed, 11 Oct 2017 09:00:26 -0400 (EDT) Received: by mail-pg0-x235.google.com with SMTP id k7so945447pga.3 for ; Wed, 11 Oct 2017 06:00:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=martingeddes-com.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=4X0lGffICSXtKdwGwOAKtjlND/zrey10f1WDJHnD3qI=; b=UbJNW0a8fVN2awEzQTneb5Yz1jqJ+9lk5VO3vON8rN8ZOrgNC76JxoAETm64/Vn7Gn K3visekAscSmDbzFPfzKIPUxzDJIB65/Wx0hHJbjDy2ok2hhmhs6B0bsGB2VkzyE+O9G oWl3Z9ueIJ6ca6uC5mXKF0VS1toSKI/ObhqCYJfXNaXXDKcSecwI/8cTV4f67bVKIPM1 QS4yMK3+sE3M4RJ7eNc4IH1iNdc1r/lxYzXbZY3wSrUl5n9VkbLEesjRtpTzFOCgyhKZ tci/wJe0oK4+XeUioVJyLuikmCrYAKV7xRwOD9X2jqvdNRqk8w9FaACrS+GRW/bWii7i xudA== 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; bh=4X0lGffICSXtKdwGwOAKtjlND/zrey10f1WDJHnD3qI=; b=esgLiGVctrUmLplk1vxSpeyJg5aefjWusDm53UFqla5Ofu3h3p4QRN1ngMKacN+eRR taDjYEiLA7iLpqfK2TKuikSMCSIWx/In/2v64pFZIib36n6sB/Hu40VuJmf7ECdOMff7 1yv3WZvB6oKItz82/4NoD4aqEkw5zU6Ul6BbKZuvror68rrGM4fJJ6nAEf1OOf+xGCd7 OXz0/47DImMK3mZSE3UDLGrPWjnyiKcgAKWDdnu54VHAHS5ypqlB/PTg6/nkjTDUBt6J /DmMdEpAt9qbKvwexFbRC6GhrdDDK0xDfNmeqfuZCfVqPrUO4s/DKVF5XCcMWTKY3FWf uaOg== X-Gm-Message-State: AMCzsaXTtj2c96M0SdGSZ8Q4Djwv+wT5wYF+l5Nc3f0ROoywuBHnKatG vic2w4AqGw46QXn/Nov80/GLYq4H2CuWe1rEb4LDwgO+sug= X-Google-Smtp-Source: AOwi7QD3FOEhjydIlvCVIpeiOtWeiY8ZtX5XhySS6K2FetrsJc2/OZL34Y+OKeAaIqi4puNR+Se5aOOhTbc0/0utInE= X-Received: by 10.84.215.9 with SMTP id k9mr9724516pli.284.1507726825302; Wed, 11 Oct 2017 06:00:25 -0700 (PDT) MIME-Version: 1.0 Received: by 10.100.166.37 with HTTP; Wed, 11 Oct 2017 06:00:04 -0700 (PDT) From: Martin Geddes Date: Wed, 11 Oct 2017 14:00:04 +0100 Message-ID: To: bloat Content-Type: multipart/alternative; boundary="94eb2c1a0ca0d752f8055b450109" Subject: [Bloat] Bufferbloat in high resolution + non-stationarity 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, 11 Oct 2017 13:00:26 -0000 --94eb2c1a0ca0d752f8055b450109 Content-Type: text/plain; charset="UTF-8" Folks, I have uploaded a presentation of high-fidelity network performance measures which includes an example of bufferbloat in high resolution, as possibly you have never seen it before. See slide 18 of this deck: https://www.slideshare.net/mgeddes/stationarity-is-the-new-speed. The classic "bloat" is a sudden formation of the queue, and a very slow (and steady) draining. Bufferbloat is just one form of statistical variability ("non-stationarity") in packet networks. For a world record winner, see this one where packets take over a minute (Huawei WiFi hotspot roaming in Ireland with UK SIM)! Or for a pretty picture of buffers draining, try this one . Happy to answer any questions. Martin Geddes --94eb2c1a0ca0d752f8055b450109 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Folks,

I have uploaded a presentation o= f high-fidelity network performance measures which includes an example of b= ufferbloat in high resolution, as possibly you have never seen it before.

See slide 18 of this deck:=C2=A0https://www.slide= share.net/mgeddes/stationarity-is-the-new-speed. The classic "bloa= t" is a sudden formation of the queue, and a very slow (and steady) dr= aining. Bufferbloat is just one form of statistical variability ("non-= stationarity") in packet networks.

For a worl= d record winner, see this one where packets take over a minute (Huawei WiF= i hotspot roaming in Ireland with UK SIM)! Or for a pretty picture of buffe= rs draining, try this one.

Happy to an= swer any questions.

Martin Geddes

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