From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x22f.google.com (mail-qk0-x22f.google.com [IPv6:2607:f8b0:400d:c09::22f]) (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 5F2633B2A4 for ; Sun, 1 Oct 2017 21:08:05 -0400 (EDT) Received: by mail-qk0-x22f.google.com with SMTP id q8so3879573qkl.12 for ; Sun, 01 Oct 2017 18:08:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=EDkNVuyd9my9ZFrIkan1MkpcEhYJZg/jw71vBCi9pLs=; b=ssQ52dbRQ2iTI+1mb1+Ct72ZsFPgY/jwLstuEwK5a5Jp8Ieg0tne01ugzAKdej15I1 CNIWWRxyIDUZTHXrvBDqCGG5xykk3E7ovVZSUq8XqCEHFGvZAvZ1I3MtcHhjSLubdfaL d07CYaqe40pXdGAqy1cBFQRbMyeLDHBQ8D6BGavyrZCoqXisrw+dapDnnLvRyu+fpHCz +/woGeHdzgw+MOCn1GzC4Vbg8Uu37DGijv0c3GZ/X2ogyoCJVWbnBY+vR+sPto4swE27 AXXvWQYt7+KEUnulqu+1uo83TTKUpfVK9w+Cd6rcwmVQfo7N/XSDmC4SJ2Af80Lw89eg CH/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=EDkNVuyd9my9ZFrIkan1MkpcEhYJZg/jw71vBCi9pLs=; b=TitPGVs6YKs3npwtkwR/IKGZyqE49TtzPP5q36dKKNDiYT/kTJZXh0t6ynrIU+1VvY PPOl+JwhCYvZ9C4x5AJONQo3cuJfXyGnbzX7G+YO3jTkSK2awSKdhY13eUIOWM8AcJoY m7kcEiBqbD2IZaQXu4yWi6VA+X2ex0dHyqE5MGmd8q+zH/gPa5/a6qyjIO0QqoSKEeqg 4W1oxomAQaTgQZCjFgkvwqkE1ZjeI0uSW2GLAhJ9XiXdPxbDcXrUL58497Twg00R49Xk Ld9M6QUiRYUa7rhTwf/w20zc8gY+YVct3FaOTo/QYFK9HxCqK1Jq2qOY1MHXXbYsw5Xl ITnA== X-Gm-Message-State: AMCzsaWZG2eLaf+PV3w3TX707Vk4ebl/riswXHrVuO7NcJnBtwgJ0ENd BB0YhKmudG4o1bSTwRxsSM+60Yylq7VpZV0sVQk= X-Google-Smtp-Source: AOwi7QB3nvyg7b7qYlGS0PQQB5oaTNF8KsxjaZSpD9XnOVnABv/LG/wG9/yZ5j5XumoiNu0tabr6rWLzBQnRVO2H01c= X-Received: by 10.55.42.73 with SMTP id q70mr12865328qkh.337.1506906484928; Sun, 01 Oct 2017 18:08:04 -0700 (PDT) MIME-Version: 1.0 Received: by 10.140.93.227 with HTTP; Sun, 1 Oct 2017 18:08:04 -0700 (PDT) Received: by 10.140.93.227 with HTTP; Sun, 1 Oct 2017 18:08:04 -0700 (PDT) In-Reply-To: References: From: Jonathan Morton Date: Mon, 2 Oct 2017 04:08:04 +0300 Message-ID: To: Dave Taht Cc: Cake List Content-Type: multipart/alternative; boundary="001a114970a6be7600055a860153" Subject: Re: [Cake] best way at getting at tcp ack data? X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Oct 2017 01:08:05 -0000 --001a114970a6be7600055a860153 Content-Type: text/plain; charset="UTF-8" Ah, so effectively you want to drop acks more aggressively than data packets when they become a saturating flow in themselves, but without disturbing the cues that TCP relies on. There is some logic behind that, since COBALT ramps up quite slowly with very small packets like acks. I think it's worth opening an issue to remind me to look into that. I still don't have a replacement for my MBP, which is complicating matters here. - Jonathan Morton --001a114970a6be7600055a860153 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Ah, so effectively you want to drop acks more aggressively t= han data packets when they become a saturating flow in themselves, but with= out disturbing the cues that TCP relies on.=C2=A0 There is some logic behin= d that, since COBALT ramps up quite slowly with very small packets like ack= s.

I think it's worth opening an issue to remind me to look= into that.=C2=A0 I still don't have a replacement for my MBP, which is= complicating matters here.

- Jonathan Morton

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