From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) (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 57DC03B2A4 for ; Sat, 30 Jun 2018 13:06:04 -0400 (EDT) Received: by mail-lj1-x22a.google.com with SMTP id u6-v6so9595331lju.13 for ; Sat, 30 Jun 2018 10:06:04 -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 :cc; bh=Jcr6ntPRDxooEb1T6337jJnoCbTLQbS3XHOR6LHoCvQ=; b=n+6uXCAR+X+V4icuBVdVdHuuh+V9TSiaAAzs0o0oPDDvi1dVa5+qF09N1+4JORShqA TXF93rQOWu+Rt967KhXexodRS29bFEA6AgnrIE5jvmciVkOn2zgF85jFQ3qIV0tv1Z5N Yo4JHugRzfvs6o9yX9WX+lG6QLkM4qcRWClnDMO2GjtKSoSXCUGzIaX5T2e8Mn1J4AWG t6saJk2yZNqUhae7dbknqmGfUtIhnf8p2E8vK7/B0vk3+wcdEAasdvonPDXYqM6TFZBE YnxFVG8ZP90tZi++XeDlqMJg7KKZ7S5szdANKSQuVW/fgAbaVOMrm28rN3T/5rsxskYI ZxKA== 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:cc; bh=Jcr6ntPRDxooEb1T6337jJnoCbTLQbS3XHOR6LHoCvQ=; b=uQmIjjEnZByCBii7ehC1YVnGxWL8+xoEMf9rHqYiZw87qIUwFQPJO8Pt1Q5nlJF/A2 SclbsuCX7e4GKSA4y3malyWpsjhUd9h1cRP2d3kQDY6ntsBUOJEZ5Tal+Ki/Exggi8fw oKdAZ0TSqHiZdl9t6eh5S6UrMJiRh1DkcmeZK1ZTM/7Gz359aKqttv5IcJEnzGhCpjNb E3VHMfaaCj0iiHuBFuM8xdCIHg+h5/FvA1RmD6cL5zM/3AZecgDJzEo+GJhIMVXOLkPe EDv420YdLvdh3966HRbguMNGJEk0k17Ju2cX5Vur7l8nSFCwxNIDKQW8Ca7R8IUhbZ18 /4Eg== X-Gm-Message-State: APt69E0pWtdN0/iXd3M83QJufCyehSOD3bjNTiOXr30oeG8v0OGvDm4L YyPtuxgnfyW/4ABKUlCu10WXig1Dy4HbPmS/oNI= X-Google-Smtp-Source: AAOMgpdRaelEOgSjznYgn6REBH5LnQuv1VbGqW/1guxHzQShN/Jf0VsYwa6Pv1oirg248Yy9Q7x4vOjQFFOpL3wX750= X-Received: by 2002:a2e:9742:: with SMTP id f2-v6mr11488964ljj.5.1530376672440; Sat, 30 Jun 2018 09:37:52 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Georgios Amanakis Date: Sat, 30 Jun 2018 12:37:40 -0400 Message-ID: To: Kevin Darbyshire-Bryant Cc: Cake List Content-Type: multipart/alternative; boundary="000000000000eef8e6056fde95a8" Subject: Re: [Cake] Cake on openwrt - falling behind 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, 30 Jun 2018 17:06:04 -0000 --000000000000eef8e6056fde95a8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Kevin and Toke, First of all thank you for all your efforts! I recently acquired a linksys wrt1900acs (arm/mvebu), I will test this by compiling latest openwrt with latest sch_cake/master and tc-adv/master. Best, George On Sat, Jun 30, 2018, 4:29 AM Kevin Darbyshire-Bryant via Cake < cake@lists.bufferbloat.net> wrote: > > > > ---------- Forwarded message ---------- > From: Kevin Darbyshire-Bryant > To: Cake List > Cc: > Bcc: > Date: Sat, 30 Jun 2018 08:29:05 +0000 > Subject: Cake on openwrt - falling behind > Hi Chaps, > > I=E2=80=99m concerned that cake on openwrt is falling behind. Due to str= ange > behaviour at least on MIPS since commit > https://github.com/dtaht/sch_cake/commit/af1d7cde7046af55ec867b29854d7548= 16b64bc8 > Switch rates to 64bit, openwrt has been =E2=80=98stuck=E2=80=99 on the pr= ior commit. I > personally have hack patches in my that effectively reverts the conversio= n > to 64 netlink values in cake & tc and I=E2=80=99m pleased to say that wor= ks, > however the wider community are a) not so lucky b) not actually running o= ur > latest code, there are a number of tweaks to the ack filter code that > openwrt users are not benefitting from. > > Toke & myself dug into this a bit and we don=E2=80=99t, so far, think thi= s is a > bug in cake but is rather exposing an issue in netlink handling. But we= =E2=80=99ve > hit an information vacuum, in essence I=E2=80=99m only seeing this on MIP= S/Openwrt > *BUT* that=E2=80=99s the only thing I can actually test on. So is this 3= 2bit MIPS > only? Is it Openwrt only? Is it MIPS & Openwrt only? Is it 32bit archs > only? And so on. > > This really needs to be investigated & solved, so that a) openwrt=E2=80= =99s cake > can be bumped and b) Someone can get on with backporting the class handli= ng > code (which is being sent upstream) to 4.14/4.9 (maybe earlier) > > If *you* have the means of compiling the latest cake & tc code on your > platform could you please do so and report architecture etc if you do/do > not see cake=E2=80=99s tin stats from =E2=80=98tc -s qdisc=E2=80=99 (that= =E2=80=99s the biggest indicator > of the issue) > > > Cheers, > > Kevin D-B > > 012C ACB2 28C6 C53E 9775 9123 B3A2 389B 9DE2 334A > > > > > ---------- Forwarded message ---------- > From: Kevin Darbyshire-Bryant via Cake > To: Cake List > Cc: > Bcc: > Date: Sat, 30 Jun 2018 01:29:10 -0700 (PDT) > Subject: [Cake] Cake on openwrt - falling behind > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake > > --000000000000eef8e6056fde95a8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear Kevin and Toke,

First of all thank you for all your effort= s!=C2=A0

I recently acqu= ired a linksys wrt1900acs (arm/mvebu), I will test this by compiling latest= openwrt with latest sch_cake/master and tc-adv/master.


Best,
George


<= div dir=3D"ltr">On Sat, Jun 30, 2018, 4:29 AM Kevin Darbyshire-Bryant via C= ake <cake@lists.bufferbloat.net> wrote:



---------- Forwarded message ----------<= br>From:=C2=A0Kevin Darbyshire-Bryant <kevin@darby= shire-bryant.me.uk>
To:=C2=A0Cake List <cak= e@lists.bufferbloat.net>
Cc:=C2=A0
Bcc:=C2=A0
Date:=C2=A0Sa= t, 30 Jun 2018 08:29:05 +0000
Subject:=C2=A0Cake on openwrt - falling be= hind
Hi Chaps,

I=E2=80=99m concerned that cake on openwrt is falling behind.=C2=A0 Due to = strange behaviour at least on MIPS since commit https://github.com/dtaht= /sch_cake/commit/af1d7cde7046af55ec867b29854d754816b64bc8 Switch rates = to 64bit, openwrt has been =E2=80=98stuck=E2=80=99 on the prior commit.=C2= =A0 I personally have hack patches in my that effectively reverts the conve= rsion to 64 netlink values in cake & tc and I=E2=80=99m pleased to say = that works, however the wider community are a) not so lucky b) not actually= running our latest code, there are a number of tweaks to the ack filter co= de that openwrt users are not benefitting from.

Toke & myself dug into this a bit and we don=E2=80=99t, so far, think t= his is a bug in cake but is rather exposing an issue in netlink handling.= =C2=A0 But we=E2=80=99ve hit an information vacuum, in essence I=E2=80=99m = only seeing this on MIPS/Openwrt *BUT* that=E2=80=99s the only thing I can = actually test on.=C2=A0 So is this 32bit MIPS only?=C2=A0 Is it Openwrt onl= y?=C2=A0 Is it MIPS & Openwrt only?=C2=A0 Is it 32bit archs only?=C2=A0= And so on.

This really needs to be investigated & solved, so that a) openwrt=E2=80= =99s cake can be bumped and b) Someone can get on with backporting the clas= s handling code (which is being sent upstream) to 4.14/4.9 (maybe earlier)<= br>
If *you* have the means of compiling the latest cake & tc code on your = platform could you please do so and report architecture etc if you do/do no= t see cake=E2=80=99s tin stats from =E2=80=98tc -s qdisc=E2=80=99 (that=E2= =80=99s the biggest indicator of the issue)


Cheers,

Kevin D-B

012C ACB2 28C6 C53E 9775=C2=A0 9123 B3A2 389B 9DE2 334A




---------- Forwarded message ----------
From:=C2=A0Kevin Dar= byshire-Bryant via Cake <cake@lists.bufferbloat.net>
To:=C2=A0Cake List <cake@lists.bufferbloat.= net>
Cc:=C2=A0
Bcc:=C2=A0
Date:=C2=A0Sat, 30 Jun 2018 01:29= :10 -0700 (PDT)
Subject:=C2=A0[Cake] Cake on openwrt - falling behind_______________________________________________
Cake mailing list
Cake@lists.bufferbloat.net
https://lists.bufferbloat.net/listi= nfo/cake

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