From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x242.google.com (mail-qk0-x242.google.com [IPv6:2607:f8b0:400d:c09::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 748293B29E for ; Sat, 21 Jul 2018 14:38:34 -0400 (EDT) Received: by mail-qk0-x242.google.com with SMTP id d22-v6so8016789qkc.8 for ; Sat, 21 Jul 2018 11:38:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :content-transfer-encoding; bh=uiNPA8auM10UWWVJubHBx+TBgPD3PCcd5Gnzz6oA2e8=; b=HSXsoApUmWzVSjKPwUJaQMbM3LIL1WbkSTn0C9zXs+2YOP34JoGRzP6p8QTKMe2eB9 H3vaBkfYXilsq6gQ9EzW4xUteojIb38c/HTCxqMP7dZowpnyKpgn5XOc21+khuMODkc1 v3eLcOHDBS3HeatXP3r4eByoxsNVhMnvzC+Au71tbsUSAvIEdbh1/Fh8DxDzYQbI7i0C t6VV0WCBkw0Q7EbHonipZ7FhPVk9fJyZjXfivZ+P2iACV72fe+LEnMUoprqurSkazVow dlahLCqaW1PBMUx+5O3r6linJjC3Y0Xvqv6JgmnWTcZ3tL6/j8yUMlHPEWZkPvYmtaQX VbBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:content-transfer-encoding; bh=uiNPA8auM10UWWVJubHBx+TBgPD3PCcd5Gnzz6oA2e8=; b=B+GZiCLVpoa3O1HcOOp2pX8475tOU7S6Ic2Se9vXDv08Cj65US/NejHIpzrV4qDOcX iOlg2lF34ZyX8gj5P+uq65i+fOU9XkIVpEK0FCCTPeQ2I+AmJ4U5RsFQrkO8ItgjLkZn YxCktJVjf279QRkWnWOZtLGQLsGLofW4mRxl5k0bED2toPRo/tgCpP+ZXtE24QaT5rVu r3DmlIkfuu/BgDTwU1kmr7/55m6hhScdJ7lL41/6R36WOB/gTE/a6zVivvdauhAL0Wer EAmJPkHNzqx+QmtTlIurKC35XRQmPs+2b3dCQnW0Q5G7nvIKVlqILY3TfYwv1DATUXPU oS9g== X-Gm-Message-State: AOUpUlE2s00O7JByjNpUi2XX69uAwBcsIuqYwaZ8ckCYwLy+MTEadA+t 9CFgU09MxqRy5ccniSjMjgPhfDHIo81t3sQZYulxrQ== X-Google-Smtp-Source: AAOMgpcPoAG5CGkl41EDEuhqQ/KzRLcGix2AsQiu2bF2wRy0OHUzxKnwZ4K81Dzk1MNk+SAMHw7zMyURoJOdGpwxRNc= X-Received: by 2002:a37:c40d:: with SMTP id d13-v6mr6050575qki.190.1532198313641; Sat, 21 Jul 2018 11:38:33 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dave Taht Date: Sat, 21 Jul 2018 11:38:21 -0700 Message-ID: To: Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Cake] policers, finally 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: Sat, 21 Jul 2018 18:38:34 -0000 On Sat, Jul 21, 2018 at 11:37 AM Dave Taht wrote: > > On Sat, Jul 21, 2018 at 11:23 AM Arie wrote: > > > > It does. > > well, one approach seems to be to police as per that bug report at say > 90-95% of the actual inbound rate, while shaping at 85%... or some > combination thereof. > > figuring out the "burst" value is tricky, of course, but I'd much > rather let the queues build up in cake than the cmts, and putting a > brick wall there at this point in the internet's evolution seems like > a start. > > this morning I spent watching ietf preso after preso "accept" that > 100ms of queuing delay and pdv was acceptible, then showing tests with > 50 packet buffers showing that things like BBR worked ok at 100mbit, > when... well... here I am at hundred mbit, with 300+ms of inherent > queuing delay on the cable downlink, that shapes down nicely using > cake vs cubic to 5-40, looking at the carnage. I *don't like* policers > (at least, not what's deployed today), and the BBR folk don't like > them either... but they seem necessary if overly aggressive transports > (as netflix's appears to be, also) exist. > > > > > > On 21 July 2018 at 20:02, Dave Taht wrote: > >> > >> In other news: > >> > >> https://github.com/tohojo/sqm-scripts/issues/68 > >> > >> does the ER4 have act_police? > >> > >> On Sat, Jul 21, 2018 at 10:55 AM Arie wrote: > >> > > >> > It's Ziggo NL/Liberty Global. I'm surprised by the reported latency = in the fast.com test. Both the site and the flent ping test report about th= e same 60-ish ms. DSLReports and flent RRUL report way more bufferbloat, s= o I guess those stress my connection more than fast.com > >> > > >> > > >> > On 21 July 2018 at 19:45, Dave Taht wrote: > >> >> > >> >> Thank you. At least for your ISP (?), at 250mbit, you can hold the > >> >> damage down to something reasonable, and certainly you are winning = big > >> >> on the upload. > >> >> > >> >> Good to know the ER4 can keep up, also. > >> >> On Sat, Jul 21, 2018 at 10:36 AM Arie wrote= : > >> >> > > >> >> > Unshaped reno attached. > >> >> > > >> >> > On 21 July 2018 at 19:27, Dave Taht wrote: > >> >> >> > >> >> >> Yours is not as horrific as mine in either case. > >> >> >> > >> >> >> Can you provide an unshaped result as well? > >> >> >> > >> >> >> > >> >> >> On Sat, Jul 21, 2018 at 10:24 AM Arie wr= ote: > >> >> >> > > >> >> >> > Two more data points. Shaped my connection to 250Mbit out of t= he advertised 250Mbit (my usual setting) and shaped to 200Mbit out of the 2= 50Mbit. This is a pre-linux-net-next cake running on an Edgemax ER4 with ke= rnel 3.10.107-UBNT. > >> >> >> > > >> >> >> > The regular spikes in ICMP ping is due to the crappy Puma 6 ch= ipset in the cable modem. UDP is not affected. > >> >> >> > > >> >> >> > On 21 July 2018 at 19:20, Georgios Amanakis wrote: > >> >> >> >> > >> >> >> >> On Sat, 2018-07-21 at 09:09 -0700, Dave Taht wrote: > >> >> >> >> > > >> >> >> >> > 1) Can someone else on a cablemodem (even without the lates= t cake, > >> >> >> >> > this happens to me on older cake and fq_codel) try this tes= t? > >> >> >> >> > > >> >> >> >> > >> >> >> >> I just tried this on my cable comcast connection. I set ingre= ss to ~80% > >> >> >> >> of what fast.com reports when no shaper is in place. > >> >> >> >> > >> >> >> >> #tc qdisc add dev ens4 root handle 8011 cake bandwidth 16000k= bit dual- > >> >> >> >> dsthost docsis ingress > >> >> >> >> #tc qdisc add dev ens3 root handle 8012 cake bandwidth 2500kb= it dual- > >> >> >> >> srchost nat docsis ack-filter > >> >> >> >> > >> >> >> >> I got the same result as you. This is using latest cake. > >> >> >> >> > >> >> >> >> Georgios > >> >> >> >> > >> >> >> >> _______________________________________________ > >> >> >> >> Cake mailing list > >> >> >> >> Cake@lists.bufferbloat.net > >> >> >> >> https://lists.bufferbloat.net/listinfo/cake > >> >> >> >> > >> >> >> > > >> >> >> > _______________________________________________ > >> >> >> > Cake mailing list > >> >> >> > Cake@lists.bufferbloat.net > >> >> >> > https://lists.bufferbloat.net/listinfo/cake > >> >> >> > >> >> >> > >> >> >> > >> >> >> -- > >> >> >> > >> >> >> Dave T=C3=A4ht > >> >> >> CEO, TekLibre, LLC > >> >> >> http://www.teklibre.com > >> >> >> Tel: 1-669-226-2619 > >> >> > > >> >> > > >> >> > >> >> > >> >> -- > >> >> > >> >> Dave T=C3=A4ht > >> >> CEO, TekLibre, LLC > >> >> http://www.teklibre.com > >> >> Tel: 1-669-226-2619 > >> > > >> > > >> > >> > >> -- > >> > >> Dave T=C3=A4ht > >> CEO, TekLibre, LLC > >> http://www.teklibre.com > >> Tel: 1-669-226-2619 > > > > > > > -- > > Dave T=C3=A4ht > CEO, TekLibre, LLC > http://www.teklibre.com > Tel: 1-669-226-2619 --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619