From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) (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 161CF3B2A4 for ; Tue, 9 Jan 2024 10:59:17 -0500 (EST) Received: by mail-pj1-x1029.google.com with SMTP id 98e67ed59e1d1-28c9d424cceso2165275a91.0 for ; Tue, 09 Jan 2024 07:59:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1704815957; x=1705420757; darn=lists.bufferbloat.net; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=Xq8oZcMeFPR6jNBQz21bWOMpaHbiawZ1V0SXNRhqEcM=; b=FWIUE3bMGe3CYMHw5+WUfqqruL4cJZQRRfwHX368bizcoX/K5lK3rTFudVONaXHDpb U/FuY/2WvzHF1YJLvCP2pg+91NyHKLMfYjxkLXhnWKnO1RmjCXbZE5GO99LMBqSv9Md2 jOLWppvH9GpRLTv/xRu9lQEl2SYWdhJK0iL5UB/bXJCD2TGZAPfeHYiGcF6c7hFUlVFS MwGFEsAjUQltAR9dVnqUj3PMghRVK72nHRT509f6+Wr9eAtNwvj9dmwr8/AMwNazWV8f lEknycvPpyvZ0poY48WcrThRbV11gaDHSJ03T4evoMX9V1hCd47WOnycXE1Z0fDt+o/z /CtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704815957; x=1705420757; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Xq8oZcMeFPR6jNBQz21bWOMpaHbiawZ1V0SXNRhqEcM=; b=euFq7gKJIyFyJ7fuG7k1XLSxmfUQtUe2TdR5+XzwS0BM5+UwC1bvkUuSiM9M/cFuG/ cIvsLVFhh84lAsCKdJUyjxkwFbodIMLwS9aj64BGW7TUnWe3iNJKZZhvkXa7asE0jXng Dd5BXFOrX0Uns0e4zb33Q+68p7koh5Dh7o+i/Lnvv/jKoNGfO6geMpF68lsa59BgqwEM P+7wc08nl9ABRb3/v8m3K3+s2QIsGy1PwMvEC9oZuAcr/JPX9PDPo9h0C8Nki5ureIdu h7aFFfb0VQjh1PzODATg1sMtbkPfZsOmwLffZhYpEw+sd9Q+MmEA9OYgOhFiDz3iqg4Z 4iSA== X-Gm-Message-State: AOJu0YzN5DH2kI9twm6PvuJxbgr94nfmN3hmh6DAxfi+womRR8Fy6BCM s9HbsYCCJjIRKjFbneg+iYeU1pZtZB/x5XP6uM/aAcswvjU= X-Google-Smtp-Source: AGHT+IHJAY+p/QJ7HA3ERAlwxXO9gs0X+llKEbHUFAjsiSb/GTKBM4fmHQiqRZr7CbrfGInPIkGSL4Uwu03/aNSur7M= X-Received: by 2002:a17:90a:fb4d:b0:28b:765c:163e with SMTP id iq13-20020a17090afb4d00b0028b765c163emr1129596pjb.16.1704815956880; Tue, 09 Jan 2024 07:59:16 -0800 (PST) MIME-Version: 1.0 References: <65325791-A1D1-4E21-9F1D-D17737BCFF0F@lochnair.net> In-Reply-To: <65325791-A1D1-4E21-9F1D-D17737BCFF0F@lochnair.net> From: Dave Taht Date: Tue, 9 Jan 2024 10:59:05 -0500 Message-ID: To: Nils Andreas Svee Cc: Pete Heist , CAKE list Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] Ubiquity (Unifi ) Smart Queues 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 Jan 2024 15:59:18 -0000 It is so nice to see this list come to life again. I just wanted to point out that the inbound drop rate was merely .03% in the first email. Elsewhere we keep hearing of 1-2% drop rates being common, and I just aint seeing it in any of the larger scale data I have been getting from the libreqos deployment. Maybe that=C2=B4s how fifos collapse in slow start a lot more than we have ever observed. Maybe it is retransmits going wild at 250ms worth of buffering. scale=3D10 10688/29185742 .0003662062 I still have to sit back and admire you all for this magnificent achievement of cake. I am not really the gloating sort, but seeing juniper go up for sale to hpe today, at a firesale price, is oddly satisfying. https://blog.cerowrt.org/post/juniper/ On Tue, Jan 9, 2024 at 10:40=E2=80=AFAM Nils Andreas Svee via Cake wrote: > > You=E2=80=99re unlikely to do any real harm though, but the warning is th= ere cause you can potentially soft brick your router using it. I=E2=80=99ve= run into that myself if I remember correctly, where after a firmware upgra= de the kernel had slightly changed, so loading the sch_cake module caused i= t to panic. And I had it start through /config/scripts/post-config.d of cou= rse, so it would happen on every restart. > > Nothing a factory reset won=E2=80=99t solve, but annoying when if you=E2= =80=99re messing about remotely :) > > As for USG, I think I used to have some binaries for those too. I do stil= l have some old kernel sources for them laying around in a repo. > It=E2=80=99s been awhile, but I probably stopped building for those as it= wasn=E2=80=99t as straightforward to keep up with the versions of the firm= ware. > > Though frankly, I don=E2=80=99t plan on updating the sch_cake and tc bina= ries when new firmwares are released anymore, as they don=E2=80=99t publish= the GPL archives on their webpage after the redesign, and they don=E2=80= =99t respond to requests for them either by the looks of the forums. So if = it breaks there=E2=80=99s not much I can do anymore. > > Best Regards, > Nils Andreas Svee > > On Jan 3, 2024, at 14:44, Pete Heist via Cake wrote: > > On Tue, 2024-01-02 at 10:59 -0800, dave seddon via Cake wrote: > > I thought people might be interested to see what Ubiquity/Unifi is > doing with "Smart Queues" on their devices. The documentation on > their website is not very informative. > > "Smart Queue" Implementation > > Looks like they only apply tc qdiscs to the Eth2, and sadly this is > NOT cake, but fq_codel. > > And cake isn't available :( > > root@USG-Pro-4:~# tc qdisc replace dev eth0 cake bandwidth 100m rtt > 20ms > Unknown qdisc "cake", hence option "bandwidth" is unparsable > > > Hi Dave, there's a community contributed version of Cake for EdgeRouter > devices that I've been using for years on production ER-X's: > > https://community.ui.com/questions/Cake-compiled-for-the-EdgeRouter-devic= es/fc1ff27c-f321-4344-8737-fcc755cae8a2 > > I don't think that works for UniFi/USG devices, however, and one should > note the disclaimer and be careful when installing it. Also, it must be > re-installed after every upgrade. > > Cheers, > Pete > > _______________________________________________ > 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 --=20 40 years of net history, a couple songs: https://www.youtube.com/watch?v=3DD9RGX6QFm5E Dave T=C3=A4ht CSO, LibreQos