From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id F3BD83B29D; Tue, 19 Oct 2021 09:34:54 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1634650491; bh=XPOG9DyGo5FO9loDrFQvzHTHk80ph2HbQQTbMfyWx8E=; h=X-UI-Sender-Class:Subject:From:In-Reply-To:Date:Cc:References:To; b=haiuP1M8guN6FEKZ+611xegaCnn7jpNGY5PJJf4f8f7JiC05R/rhz1wevNwK4ztDA +e6gCUPNN5XNg2FNTUhFhwZyh/mBhn69Urh9OkOUNVhhtwwCE0vTr0TBTQALajVIlZ z53hTIMNkBiQMjp76xDDSjXnMtJvf9cxVBBVD2fM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.250.101] ([134.76.241.253]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N7zFZ-1mpb2m2VIh-0154Ni; Tue, 19 Oct 2021 15:34:51 +0200 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.7\)) From: Sebastian Moeller In-Reply-To: Date: Tue, 19 Oct 2021 15:34:49 +0200 Cc: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , Cake List , ECN-Sane Content-Transfer-Encoding: quoted-printable Message-Id: References: <87sfx31dt5.fsf@toke.dk> <87pms71cmr.fsf@toke.dk> <878ryqjxke.fsf@toke.dk> <87tuhdgt35.fsf@toke.dk> To: =?utf-8?Q?Dave_T=C3=A4ht?= X-Mailer: Apple Mail (2.3608.120.23.2.7) X-Provags-ID: V03:K1:IwOJC86d3k1vIPd1JDECbEFRZa8Aeie8P6d+q9AqsfSCxU+Cy6s STSZlzKtymUf+VPiL9O2z9uZzbm2J7m9iJHuhlVml7W3Ub2E3ryAywNaMrWVo0r49IzkbxS PsZjn/0Ee73F3IkSCo3evfO7EIIiizeXDzSYPX0V8fHkluFgrFkAXgnDLsX5hQw+WutTZ6J gn8xP2V8jK48wCEK9RyBA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:qlS0NZat2fg=:OIdq1FtqpH4VDfdIL5W1qd K22yZQ2oCPTVULCoX+R8ulhgp5wpJXv11XWjXSnhcZE9Lga1htCSTrH+UhwbEdvskUgZ7pZNj 4PzwtpV5Qz8Z/u7iRXrdpocMtI+gKIeS7+IwI1o38sKACYnh6DTU81dsilaqnKnwlJof7E6UM c2hQV2jMRyN8Qk19PqR/Hyj2j97HLHUwiooYs253GvergGNtRCHFf2cOgwYcKmZz5g46ZvhKY YyWS7vbJFY5RI+zd00SUMEYSIXt+HdS3urnktmeHNf6uZC75ShWNgC1DBJYvbH58bRMPW32n9 9GSQDet952h+3x3trOLMNWQy9XL2XtBG97jWNe3YuBrsOlT+f9vcUd8MfJEkLn7CNIbuV92To SCG/Os+lvdO5vlaEiQUpzVCYjHGAfs9/NATXkP3hQ6jqNFvfR00Jblu4+lQDOzVZGbGkNvNF8 kv2pZrfbAs+/7F16ezEOh2uFfDIRmC6QOqqysXIBKdMA+YbWekqCCczSVIS6tsgK8LdbsOLI4 y0B2ie9oOpZpPM3GIF4R/dN4Ie78cLmZes5JLVZ/nkwOMRkk/3rCicNuAj4TYI+exRZ/oJIRo 57oIoeY5yXVY906/z7ihHUqlH0IX2tKKR0vvbi9lVjJUAbbOmGQCYhu5GzlFpiW5HiXvy3NDF ldh4QR32v2XMie7pe1vzPvOBmavfopj/jP/T1GjPT+xtuS4rWaMyzNtdz4jWzJOtaWKfM1MCV UqunFKgF1JUVrI0g+Zkq7wCsRKQHj1ZrTQOjDJjEvWHfM67azWsj7eYVcfbOcafduj3FSgKjs nLEzAwLcI6LZCMkz2VoFZbl1D9BvrivXEvY7HmHAKr7dGwRC3uIBZ0FmGvvZ18eY1KENEXIdl BVNY+6AnkBlBtfb8N2oDtMpjtZCxFRFISYw+OC/TeKwKQ3ZQui7hHZtVWIBxFVZBloxKGkrW1 riFcXvyDVAV9NluLm0tYvyW8NG6MjVNrv0auxmt8D50DkZw+dBV+/axq0zY7UNMHUmxy+wIa8 a9wtcvvbMcwyq8LYKzkJ4UQzyxQi+IkqPJUF8zoGav2wPRANgtxMhkSRB2YbOt8XJDKCIIgyq vhW9LDbbbva76A= Subject: Re: [Ecn-sane] [Cake] l4s kernel submission X-BeenThere: ecn-sane@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of explicit congestion notification's impact on the Internet List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Oct 2021 13:34:55 -0000 So that still leaves us with GSO introducing CE "spikes" into the = network, that might not necessarily reflect what would happened if the = meta-packet had been segmented before.... I note that rfc3168 probably = will not care, since it will signal a CE mark for >=3D a full RTT = anyway, but HFCCs will care.=20 Regards Sebastian > On Oct 19, 2021, at 15:30, Dave Taht wrote: >=20 > On Tue, Oct 19, 2021 at 4:19 AM Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >>=20 >> Dave Taht writes: >>=20 >>> my more specific question was gro. On gro assembly is the dscp/ecn >>> header examined? >>=20 >> Yes, and only packets with the same value get aggregated: >> = https://elixir.bootlin.com/linux/latest/source/net/ipv6/ip6_offload.c#L263= >=20 > Good to know. Thx. >=20 >> -Toke >=20 >=20 >=20 > --=20 > Fixing Starlink's Latencies: = https://www.youtube.com/watch?v=3Dc9gLo6Xrwgw >=20 > Dave T=C3=A4ht CEO, TekLibre, LLC