From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) (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 67DBE3B2A4 for ; Tue, 9 Mar 2021 18:14:29 -0500 (EST) Received: by mail-lf1-x135.google.com with SMTP id x4so23467259lfu.7 for ; Tue, 09 Mar 2021 15:14:29 -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=vv+yosbxwU0OWTCxh25uabW5x47b/s6/VVHvcofhgSU=; b=brPdv8StMIDOl/B5zG1l0OUhlI/vbx0+y81mG34oZL63yCAJMpfwl2xExwVa9oIusr 8ik0/xHjEdNuZ4UPzUwXLRYoK8H2M2Kx95mIbeA/b4PfJ5DeVtnssieTcaxceMYE+tTg UC5ns3jCoWAJB3d4mi0QpfUTmC4Shvc2iKt2PA1dEVKGxi8i7S3UVW1aidWwPgSmevlW rj3TPedSiuVOVOmI7ROkxG5Q9QsVVaf3NKmpuzioJyAnqzKZ5GFb/DBpbVLU+Qb/4eI6 nBf51sGBk2WrnunDUlxJEZqbhRqH6J1Z9iHfOg9AMuAbnCh6zxGVJN7uesxXvZ4WXV2w 3tMA== 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=vv+yosbxwU0OWTCxh25uabW5x47b/s6/VVHvcofhgSU=; b=lCfGpbvong2bYB1ooaBwl63bDSjstQOXioxkX/U8EqxvQfHfaCP6xc3ct5x2GKN04U ZLFFc7jfN1ZWHhnbvhNMuLG4tQrNJ9ftATYpEpQ/Gk2CTqj/i5HVUhYX2rIFbabJ7jYa Hj0E/fiKylpbdYLd7rY4n47+u4Q5ZTrQW/hMXYl47K507JJt8VLmAsKUIYUlDmqYMTtZ QmaWk/xWng5zR1HVjFhhVxwcX8j73jU9nFh20fqTLJyXCXQx+Ex+4h8MiGU+p3H/w0PK UrX+1JzS1NgHDpr2EyLB+FM4POmyJGL9aX2LhTs8XoGpDWg1pXFjl0KKndkYF5YrQdXd iDCw== X-Gm-Message-State: AOAM532zL3deLsq8/VxTvphAsiBzCbC2iBi5l9bFpIPLdI3sxZ549Ci4 jRRPj+Kz257mBr/GeqW5yos= X-Google-Smtp-Source: ABdhPJyE9teM6+jdmz00pGuKIhXcP7TTmNNH3JGy7lzaB0lM19rYpNrk16pwhdMfqYmgBb+rhZky4Q== X-Received: by 2002:a19:8197:: with SMTP id c145mr211756lfd.655.1615331668265; Tue, 09 Mar 2021 15:14:28 -0800 (PST) Received: from jonathartonsmbp.lan (176-93-29-60.bb.dnainternet.fi. [176.93.29.60]) by smtp.gmail.com with ESMTPSA id s5sm2242578lfd.284.2021.03.09.15.14.27 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 Mar 2021 15:14:27 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.7\)) From: Jonathan Morton In-Reply-To: Date: Wed, 10 Mar 2021 01:14:26 +0200 Cc: Taraldsen Erik , =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen_via_Cake?= Content-Transfer-Encoding: quoted-printable Message-Id: <9AADDAFC-ECCE-4023-BB68-C5CC729EC521@gmail.com> References: <5407860ac65c4059838e7952ae162f9d@telenor.no> To: Dave Taht X-Mailer: Apple Mail (2.3445.9.7) Subject: Re: [Cake] STEAM tcp algo from CDN? 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: Tue, 09 Mar 2021 23:14:29 -0000 > On 9 Mar, 2021, at 10:20 pm, Dave Taht wrote: >=20 > 10-20 flows, cubic, last I looked. It's ugly. I can't confirm CUBIC from here, but it seems to be 4-8 flows in = parallel now. Latency to the national CDN is about 22ms over LTE, so = it's hard to distinguish CUBIC from anything else in particular; in this = range it would look a lot like NewReno. It seems to shut down each flow = and start a fresh one after about a minute. It does have ECN enabled and seems to be producing CWR flags in response = at the correct times. With this small a BDP (I've throttled down quite = hard due to the amount of videoconferencing I'm doing at peak hours this = week), it quickly ends up getting CE marks on almost every data segment. = This is actually fine, since it's then controlled nicely by = ack-clocking and FQ. - Jonathan Morton=