From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) (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 17A003B29D for ; Wed, 26 Feb 2020 16:00:55 -0500 (EST) Received: by mail-lf1-x12c.google.com with SMTP id v6so342479lfo.13 for ; Wed, 26 Feb 2020 13:00:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HRaGYWn6iZSQQOmSOQONOpmRKyGlvjxItfjmNu6+C9Y=; b=bri5gSC8D8++pz1GSrvVdqtR9em8MmOaZ/c7R40cA2NbKSuJY4wAIshWWVPBEe3o6w i7uxuJXyfH2/p2N19cbX8tfU5IKuBr34lNPxYd5ZYbtlSELX/qKqGmlYX5Wc50kp62mR B9c30FREkYJbA9XNOyOH+WW6GudIejPUDJoHNVQ3oIdFwLYwdaAKNHte+Mkx1YSdIZXP 4xGhU3NvbDWfcg64Rts6atZKMRo8qBt7AqnOYQE+0l8rZN7iJM5VKLXlrhCzetEs/oor qk43g6UKQxdvMhj3weYAFor3swHnyL0II7F6aW2VvaTtnR9dpYWTOYTpMwvoqBMIPLf8 r08Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HRaGYWn6iZSQQOmSOQONOpmRKyGlvjxItfjmNu6+C9Y=; b=obCg7fVLZe64M1Zs9oS2+/itcpPAKr3SdMQHOt/K43dQx2K5OuRsN0g5vyka+qIuG+ +9grBbKG4+5gT27yO5hjpBh93uI+D8vUeUnuwiceBB0Js2o6hX453XTpRX/G+D2Trinn ft0ndBeyYsP3bB0w1ZbQ2eEkVyowby/8PoXsl108e19+CXMyAp3sEweLGS+hQZZ0JHs/ wSvJnk+leQUjgkXVtVe6poUFwvNQp6KSKjEK7CMza7a/6tV2PS7yixajOLTnwZfAQ/4z ZdFzETXEudc6mdRAXVqqTfBeMhJwYL2VR7wkP6ISBS26OeSrKj8JvEcIhLO/6UJ24fH8 WIKQ== X-Gm-Message-State: ANhLgQ0JAZrBDlbKl1Ir84FGhnx+ZfnOluSgNMUS48EVmRKqexKbQ3ox MgM5FlaxEIfMzKvsMt77bs0= X-Google-Smtp-Source: ADFU+vsLQkh6ODtZcaa0zFhEYeJPbU99fpnIQY6BxSACWviBuMx2Peh9W7Zm38bSh6mcu1rX3BsIfA== X-Received: by 2002:ac2:4857:: with SMTP id 23mr262126lfy.200.1582750843978; Wed, 26 Feb 2020 13:00:43 -0800 (PST) Received: from jonathartonsmbp.lan (83-245-227-14-nat-p.elisa-mobile.fi. [83.245.227.14]) by smtp.gmail.com with ESMTPSA id w8sm1737235ljj.75.2020.02.26.13.00.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Feb 2020 13:00:43 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) From: Jonathan Morton In-Reply-To: Date: Wed, 26 Feb 2020 23:00:42 +0200 Cc: bloat@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: <30B4826A-F0C3-4376-B281-A1BE68DE7487@gmail.com> References: To: Taran Lynn X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Bloat] pacing, applied differently than bbr 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, 26 Feb 2020 21:00:55 -0000 > On 26 Feb, 2020, at 8:51 am, Taran Lynn wrote: >=20 > As promised, here's the updated arXiv paper on applying model = predictive > control to TCP CC [1]. It contains more in depth information about the > implementation, as well as some data from physical experiments. >=20 > [1] https://arxiv.org/abs/2002.09825 Hmmm. I see some qualitative similarities to BBR behaviour, but the = algorithm doesn't seem to be very robust since it seems to improve a lot = when given approximate a-priori information via cap and collar settings. How does it treat ECN information, or does it set itself Not-ECT? - Jonathan Morton=