From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) (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 720FB3B2A4 for ; Sun, 3 Sep 2023 11:49:12 -0400 (EDT) Received: by mail-pg1-x535.google.com with SMTP id 41be03b00d2f7-56b0c5a140dso534396a12.0 for ; Sun, 03 Sep 2023 08:49:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1693756151; x=1694360951; darn=lists.bufferbloat.net; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=OHqTA4H1Cl3hMUsc3ymDAEZpXKjL4O9jwCfupg0iTS0=; b=FfFrKq8gfsmWLQCvt08ZVF59fWVmBbXgqbywElJT80Bs43/c5njt8Uv+I/TuNNET7N 88zl4YjrMpal5DiFXNvc7ZMiG1+vUgCMHEQDF6drDK/sf+AnLlW/a/cVOeor+lvOlehI 9kqYhYn+JSY73aF6jEi4VrDD4HNQ3Deujt3iF9Fu8/SjldMJSD5OF7LSAXyEEUsl+p0H niE+KUH9IgkbBiXWRs9F2pXqoEXA4xXUshGrd5khPRmhckaVlu55TK8ZisRURmNtEMCQ 1/HsHKx95x7xZQsfObc1bHedE94L9U3kDQYHyjqGbCoyy1UAQem9gabNGLfxVTG6wnkX ndsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693756151; x=1694360951; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=OHqTA4H1Cl3hMUsc3ymDAEZpXKjL4O9jwCfupg0iTS0=; b=RASwAPFiHnfLxZlhMFvOrpCImU4K9wc49scMKCHYF60GeFPJrbA6U3Vm7pAprqGBii NbX6l8Tg6kOvych2Top49XDby8Ljpd1407lGBJh3JbQOz47+XjSVVeF5eBw8C6HkiO7/ H7gf1aZpG5SHsPeChXO7AtFzdBjm0YscxCedkIX2VUoHfq48rCWzhqqiHSJ1/42/hqZg nqZfepgjToHuh6fFahD2tXXdirTJfH9rMBa1mSVZ1mqr+JN9/Afy80++FnXttXWAWpAm 6v0gfwad4D/pWMixoY/8LMQybWpSHNJyZg4oxBbcPu4U10yYmqacMp3y45CQ3pokTeiy s0ag== X-Gm-Message-State: AOJu0Yzkk+282a7aSZIr5ivecoEWc1b1ykAvtpafQiYh3UIZ3o809bGf dj4ysXlDQOKKtjTn/kCcy2Y3O76o1te2+jYStlLi58s/+8I= X-Google-Smtp-Source: AGHT+IF2hUBlZEgBOjkuG9M0jz46oAsyiXMq2+l6eH2YZUWBzGb1RypyLhtvbqvp54k8ovaDjKKUOAp8mR8zj1u5vOE= X-Received: by 2002:a17:90a:cb92:b0:267:8012:b393 with SMTP id a18-20020a17090acb9200b002678012b393mr7236020pju.34.1693756150897; Sun, 03 Sep 2023 08:49:10 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Sun, 3 Sep 2023 08:48:59 -0700 Message-ID: To: Dave Taht via Starlink Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Starlink] capturing some cake-mq requirements X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Sep 2023 15:49:12 -0000 I have been writing down some requirements for a new version of the CAKE qdisc based on observed results from the field. I apologize for the somewhat random nature of this (and there are a great deal of outstanding comments on it - we seem to be seeing some issues with steam and ecn), I tend to write first and polish later. I started putting in some observations about starlink=C2=B4s behaviors and how to possibly fix them, towards the end, in thinking about adding a "plug" facility to it in particular. https://docs.google.com/document/d/1tTYBPeaRdCO9AGTGQCpoiuLORQzN_bG3TAkEolJ= Ph28/edit Anyway, if you don=C2=B4t feel like wading through that mess: In looking over my starlink data accumulated in the last couple weeks I am seeing that 70ms spike more regularly, and I am curious if it is appearing in other data? Why are the steps in baseline latency are so large? Could they be doing something further to delay the packets and deal with the doppler that way? I keep hoping that a good video conferencing analysis tool would show up that would show glitches per minute and the recovery period for each glitch. --=20 Oct 30: https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.htm= l Dave T=C3=A4ht CSO, LibreQos