From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) (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 9AE373B29D for ; Thu, 4 Aug 2022 08:21:31 -0400 (EDT) Received: by mail-pg1-x529.google.com with SMTP id 12so17817999pga.1 for ; Thu, 04 Aug 2022 05:21:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=domos-no.20210112.gappssmtp.com; s=20210112; h=to:subject:message-id:date:from:mime-version:from:to:cc; bh=9y07muCF1kbjcqQKPD68QJIWnCMJbU39dYCtE/lH1XE=; b=w+5P5niiuEeqHDvm9el1HDNDA0Kh7zlmDoDCExzEIGNNvb+ztv9u1uHFVxqbZAYXer Vv8XprdXnpsQEYx5ZOy8vI/0b3PDF9KsAkhEeLDuGKluvOksdwkBj6DlJDUHCkO00yfX K1IBShKgDylnoI9DHz7OzqY/fp1XSnHJu9s0g/tJ8RRLR/9NSjUr86sgckYqkYfEo3M6 vLx05RIAaXXqsgEx3KT56nYxkvJqtRHJbfrZosqDRtIdl3HX1RpOvVVYJyiBvcFC1aMo zqdN0Km5wQ2ky1d0xobOL69NJcfKjjucsYO6ROGhSgaWhupVetm4UnibLCYCoONpFKWZ SVog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc; bh=9y07muCF1kbjcqQKPD68QJIWnCMJbU39dYCtE/lH1XE=; b=LsnwmjVCvIFv4C6SV7ZqRSGEKlMzo7aCrcSEJ0QlYUuTE7xKQRevYPvD4cs0nXqeTo PyQG4JcQ68JpDZrtEIHqzZyCh8RiKmtbJvDMJiVOGx5Xt9aOOG7cPgwPq/xK8uBrkh1T AnY4Nha15bclhld5G+SRDGTsGmJsNCRJbuzl6fUUXBfwJtnXu3PKvObaezbP35rzdamv tGUEgz5czW4hwSvNJ2i/e4k98KBI8yEXrGOPNh5MQ9hvMhgCDGGGtsbFOZ0GWVwDOWvO dSbut8+iAS4QLXCfBXU3msm6aDCO25xW8J3Op16BKsinix5g1UUhAqI0TWnM52QLI8OW qP4w== X-Gm-Message-State: ACgBeo10ivh523KyjZD1w82LFBQMWQ3l801CcoIZn61pjZPu7vVRVaQ9 jK0Rxtoi+eqHE97xLFuOf4aqFXDZzyY4qYEV9oUEvMMSTOOFRQ== X-Google-Smtp-Source: AA6agR732xxcqKsVUJIruqUbd8ozza2XhZqyYZacbKXd4JOtgA4Y/m1Og+ymZLwBh5VEFOrj9X9P8F6aRcVfC8z0k5Y= X-Received: by 2002:a63:5620:0:b0:41a:4c1e:a821 with SMTP id k32-20020a635620000000b0041a4c1ea821mr1420994pgb.611.1659615690267; Thu, 04 Aug 2022 05:21:30 -0700 (PDT) MIME-Version: 1.0 From: =?UTF-8?Q?Bj=C3=B8rn_Ivar_Teigen?= Date: Thu, 4 Aug 2022 14:21:19 +0200 Message-ID: To: bloat Content-Type: multipart/alternative; boundary="000000000000aeb41205e56963bc" Subject: [Bloat] Researchers discover major roadblock in alleviating network congestion 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: Thu, 04 Aug 2022 12:21:31 -0000 --000000000000aeb41205e56963bc Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Interesting article from MIT: https://news.mit.edu/2022/algorithm-computer-network-bandwidth-0804 The paper can be found on Venkat Arun's website: https://people.csail.mit.edu/venkatar/ Main take-away (as I understand it) is something like "In real-world networks, jitter adds noise to the end-to-end delay such that any algorithm trying to infer congestion from end-to-end delay measurements will occasionally get it wrong and this can lead to starvation". Seems related to Jaffe's work on network power (titled "Flow control power is non-decentralizable"). Thoughts? --=20 Bj=C3=B8rn Ivar Teigen Head of Research +47 47335952 | bjorn@domos.no | www.domos.no --000000000000aeb41205e56963bc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

<= div>The paper can be found on Venkat Arun's website: https://people.csail.mit.edu/venkatar/=

Main take-away (as I understand it) is something = like "In real-world networks, jitter adds noise to the end-to-end dela= y such that any algorithm trying to infer congestion from end-to-end delay = measurements will occasionally get it wrong and this can lead to starvation= ". Seems related to Jaffe's work on network power (titled "Fl= ow control power is non-decentralizable").

Thoughts?

--
=
Bj=C3= =B8rn Ivar Teigen
H= ead of Research
+47 47335952 | bjorn@domos.no=C2=A0|=C2=A0www.domos.no
--000000000000aeb41205e56963bc--