From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x242.google.com (mail-wr0-x242.google.com [IPv6:2a00:1450:400c:c0c::242]) (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 946C93B2A4 for ; Tue, 24 Apr 2018 04:57:49 -0400 (EDT) Received: by mail-wr0-x242.google.com with SMTP id p5-v6so20695663wre.12 for ; Tue, 24 Apr 2018 01:57:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eventide.io; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=9HTH0z5Kv9OCxsc1jhaPGYOk2CBeSZkX8+dzfG0qoTw=; b=FFkv41D+0Hl4O/I0YKPQRWevzDn3k8D/n83PMePHiD6jw4VCAvu/ZNKrcCH8RWZZPw 7H8KyqmNwlI6UgL89bxjbP/6kxvW+UHr+9qXxVQxbj6wr2WDNktEPwdiqL7Lr0rEZ1AM kRAKESKVwHw++vv8fbOoOXzUuU28gPae2rKjmosGExL2/xBUteVfFwFFpQOoFuHNAii6 /oM30v6EM1ukH56fxeW/4WErSgrc2n1azgBZ23uLbqCRKmITOtJbrrsELzGrRNK8Hcil ZHN9jSfPMKvLuxkCOX+tr28kZU6sAgofApHwF9phl2xiin9kKxdhrvifkmN0260OP2Z+ YYCA== 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=9HTH0z5Kv9OCxsc1jhaPGYOk2CBeSZkX8+dzfG0qoTw=; b=WsoX/faLSHd0CIJAuGI+lHLElztD98FLZvAH7bGm2gcVH4v0VJgYwHdIMOkycnNHPa P9/kYurdFeDrXbdi4L2eTzz4w4w15OtH10dCe9ByeXIYm/zgc11JEzJaIhKnQuvnufr6 AsGf8mD3vxg2UlgtPRiwx+s+yk5heqGuvLjC39kFDLMdeGT69DadWRYC2j0kzKCFXPI1 rknB7hTCkvruSWNxMHUVHHRRAx8eoHU2m28pd0ME5QWsz9Eh3enPlM57lQFz+wsFpkuz 2VHY3S5nzp6SqggBRmw2KcBA1uaqKgH6/tIBoszmVjVXZCWIENn2IX0CNAJ4V5PG7ZNJ Jvfw== X-Gm-Message-State: ALQs6tCGIUHEOjVlrrQ2yhTki3IWDE7p8Z4k/dxvYtrF7jxmeg7yJmAG JZC3QEWLuinM9mnYYLRbBDgRfw== X-Google-Smtp-Source: AIpwx4/oMi1apLPlyzFjg959NHhWX0JHTcmjWu3HdxBHH+HAGM9F/PybMqlonpw6wYQTH9buZFetPQ== X-Received: by 2002:adf:b312:: with SMTP id j18-v6mr20102986wrd.33.1524560268680; Tue, 24 Apr 2018 01:57:48 -0700 (PDT) Received: from [10.72.0.64] (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id u187sm8466286wmu.46.2018.04.24.01.57.47 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 24 Apr 2018 01:57:47 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: <87r2n5802t.fsf@toke.dk> Date: Tue, 24 Apr 2018 10:57:47 +0200 Cc: Jonathan Morton , cake@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: References: <871sf6xqne.fsf@toke.dk> <003D19B8-73F8-46D4-8FC8-95F6E518D3B5@eventide.io> <311BE3FC-9211-4B33-AD46-444F21E2A38A@gmail.com> <6A13BD7F-D682-4864-B5DB-2352C1C3F529@eventide.io> <87r2n5802t.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3124) Subject: Re: [Cake] Pre-print of Cake paper available 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, 24 Apr 2018 08:57:49 -0000 > On Apr 24, 2018, at 10:45 AM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 > Pete Heist writes: >=20 >>> On Apr 24, 2018, at 7:58 AM, Jonathan Morton = wrote: >>>=20 >>> Turning NAT support on by default might actually be reasonable, = since >>> it doesn't really break anything if it's not needed - it just eats a >>> bit of CPU with unnecessary conntrack lookups. >>=20 >> I would be for it, if it eats say < 1% additional CPU, and preferably >> less. I expect the impact to increase with packet rates. >=20 > I'm a bit worried that the way it is implemented now, if we turn it on > by default we risk activating conntrack even when it was otherwise > disabled... That would be a bad side effect, so I think it's better to > be safe and leave it for userspace to enable (which, again, we could = do > by default in sqm-scripts). Fair enough. It sounds like cake=E2=80=99s configuration policy is to be = more =E2=80=9Cpredictable and consistent=E2=80=9D by default than = =E2=80=9Cready to use in your home gateway=E2=80=9D by default, which is = understandable if it=E2=80=99s anticipated that more people will use it = through some router=E2=80=99s UI or setup scripts than will set it up by = hand from the command line=E2=80=A6