From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) (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 4B87A3B29E for ; Mon, 26 Sep 2022 17:14:47 -0400 (EDT) Received: by mail-wr1-x42f.google.com with SMTP id s14so12202977wro.0 for ; Mon, 26 Sep 2022 14:14:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date; bh=mLu2/h0CR1/bMSQkcsbHHDkAJetU97wOoZJ/WEasxOE=; b=piJVsoToM12ri26PiNPo6UY7XUFN6HNGzNQZQ6K9eLnKrfgbXlZ7wCShDAbRvJTrLW 4iW1xaL4nD4sYerg1zhAXTQRfrqq50uo8HGD79noX6sgBW6rcWoTSPt6P5aroVhgX7sH RluTT27eO8IWkpAHcb3w5JtLG2Hih36b2pfPO0XFpzP0nTg5HzK35cS+ns9FuluJgo6B Vc0vQeOZRiiquldvyaaU+cClwBN3FbHShv0vs39PfpXK5xfNY2ma6Z9JgwZwLOs1xdd1 WI0U/nagQus0PJ7A/4ut5v/G78MFJi9OEbM25u28zbnaNxLd+2yPgfEiocEzCG/ueljk NloA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date; bh=mLu2/h0CR1/bMSQkcsbHHDkAJetU97wOoZJ/WEasxOE=; b=4adkG6yfg6wkPVblivFUedJnSI8jvH0BG91/X5gWrAtI50iPfsZ/Gw/m2odFizTwMa hGtjGa8NmO/sHgDvB7yCfDVfWpRr4bjGVileP6bSChjcmZ2398gvl8FPwpW8lfoHG7oy gG+vy7umj4Snz+wnYfQzFn7Tr4bhABSfZ9mtYCMVFHgMfhpHPh2h8FR+LYhuohRL5G88 lkgdKLsFS9ONz9ADtvNuE20K/mdDcxVndWw4oqMrmsNfgR9epez5wGXE3cV3Pa7fYelN QOaWkZ3QTuFcqlJ3m4bC5vs2sNfDUaw+LHgZqgKpFMM0gbGk1BT9fYZ7kVITCJdaNuPE 8gYg== X-Gm-Message-State: ACrzQf3WfE7cUlFLAG1O8kJ17k0VgpH0Fx0dTtNSl9jp4gMvfxWHW30Y JKSIfY9hupO/lyABFXW172vUUpAkN9ioGXeA3uUMu8LG X-Google-Smtp-Source: AMsMyM7urAqLb4LiXGEz9oDBCiPMx3cdzOgOVacxQzSI0vuZ2nz8Ps+GdIQE4osRHRBjOqzBEDDL/2eg7YGeuF8ViH0= X-Received: by 2002:a05:6000:1565:b0:22c:8da7:3cf8 with SMTP id 5-20020a056000156500b0022c8da73cf8mr9425026wrz.688.1664226886117; Mon, 26 Sep 2022 14:14:46 -0700 (PDT) MIME-Version: 1.0 References: <060F7695-D48E-413C-9501-54ECC651ABEB@cable.comcast.com> <07C46DD5-7359-410E-8820-82B319944618@alum.mit.edu> <39E525B8-D356-4F76-82FF-F1F0B3183908@ieee.org> <498p2p23-on1q-op89-p518-1874r3r6rpo@ynat.uz> In-Reply-To: From: Dave Taht Date: Mon, 26 Sep 2022 14:14:32 -0700 Message-ID: To: Bruce Perens Cc: Eugene Y Chang , Dave Taht via Starlink Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Starlink] It's still the starlink latency... 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: Mon, 26 Sep 2022 21:14:47 -0000 On Mon, Sep 26, 2022 at 2:02 PM Bruce Perens via Starlink wrote: > > > > On Mon, Sep 26, 2022 at 1:54 PM Eugene Y Chang wr= ote: >> >> Every node in the path has to implement this to be effective. > > > It would certainly be optimal if every node implemented it. But any node = can detect the endpoint round-trip time, and how it degrades, and thus adju= st how fast it feeds packets into the network. And a midpoint can detect wh= en a host is feeding packets too fast for downstream nodes, and send explic= it congestion notification, and failing that, drop some packets from that s= ource. yes. Been working on libreqos.io lately, which is targetted at small ISPs, and uses our latest XDP and cake code. It's getting marvelous - the ipv6 code landed today, and we think we're good for 20gbit on 16 cores on < $2k hw with purely free software. Preseem (also using fq_codel) has been delivering a nice shaping middlebox into the wisp market for going on 6 years. > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink --=20 FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_code= l/ Dave T=C3=A4ht CEO, TekLibre, LLC