From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x22c.google.com (mail-qk0-x22c.google.com [IPv6:2607:f8b0:400d:c09::22c]) (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 0EF803BA8D for ; Sat, 28 Jan 2017 21:48:17 -0500 (EST) Received: by mail-qk0-x22c.google.com with SMTP id s140so99718999qke.0 for ; Sat, 28 Jan 2017 18:48:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kriskinc.com; s=google; h=mime-version:from:date:message-id:subject:to; bh=iHDV5sPQ1g4zicJWsYRM6P/bq5BBq/jZphr9+sL/RBU=; b=ekZt28DB9lytNdd8+mHqpCihs0vnr1GAJMnE6XWwwARx+GeWnArZpZEl0DTvrZQx0b KxiLnWxELJnBhzehsEOtfEIU2OluRNbldzRVIeLzAldYZQc1vxVv7JXXFbQn8Z6DGOTc FhL/t/lsMUz5phwGmfEqVOJYZTEx9mBAcq0bmDsPu7+zTpq7UrAPQ42+HSW63EtbAgI4 q5T1A/ljoSCVsCGvzAt+R+cBEaKM+0i6bPWBKZQeL9UKaWI0rTEWxVOW9RS+o7GFaX0f ziVltoWItOMBAr2nN6mowJPhuij7JqJ741IcDl0B1NXmxtyZUY94Nxg/uwsSWSnMD47Y Lcgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=iHDV5sPQ1g4zicJWsYRM6P/bq5BBq/jZphr9+sL/RBU=; b=IWMpsIR/+TqWiWhU3TaSYcxNAENG+eM8ihOfxEReQzbE/DGtuKPnFArm6ZVtukHXiS 7KWXR0czUdbFuhvURToRisyv3CD1oYkZhxkRy/F9cG98JFE3PpuNPQfHrXvXrV7e3+29 w3Elh3VYH1JNlQAiPQf5ltE4y6s09ektMaKUHH/Dr2KhKWr+eWCheHmUU0kzTPMIM7cY /JX67NBr7as7Noj5bm7nTYEtw/sWNyS1bgPzcViII6r9xB/AyWfS0dJhHVHfdCjY7Nw+ 9UUHTSz7Y5PQXg3jHnkEkuncbDWnTJ3uKgynlMIHVgMsRJDVevuiF8T1gYQlsG64cSsA k9BQ== X-Gm-Message-State: AIkVDXKPtXF1z1uJ4RAk8qeAxnTgWocUpCk9/uv9chWC8bc59Rv7d7o5maRtt/CANgi4hv3sqiA30fTqieO5YcTj X-Received: by 10.55.101.206 with SMTP id z197mr16274120qkb.117.1485658096502; Sat, 28 Jan 2017 18:48:16 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.163.101 with HTTP; Sat, 28 Jan 2017 18:48:16 -0800 (PST) From: Kristian Kielhofner Date: Sat, 28 Jan 2017 21:48:16 -0500 Message-ID: To: bloat@lists.bufferbloat.net Content-Type: text/plain; charset=UTF-8 Subject: [Bloat] Cake "out of tree" on Debian X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Jan 2017 02:48:17 -0000 Hello All, Having enjoyed great success with codel in various places I'm finally getting around to dipping my toes in the water with Cake. Router in this case is a Debian 8.7 machine running the provided 3.16.0-4-amd64 kernel. Following the instructions here: https://www.bufferbloat.net/projects/codel/wiki/Cake/#installing-cake-out-of-tree-on-linux I wrote myself a quick and dirty script: #!/bin/bash WAN="eth2" DOWN="117mbit" UP="22mbit" if [ -n "$1" ]; then echo "DOWN:" tc -s qdisc show dev "$WAN" echo echo "UP:" tc -s qdisc show dev ifb4"$WAN" exit fi tc qdisc del dev "$WAN" root tc qdisc del dev ifb4"$WAN" root modprobe sch_cake modprobe act_mirred modprobe ifb tc qdisc add dev "$WAN" root cake bandwidth "$DOWN" ip link add name ifb4"$WAN" type ifb tc qdisc del dev "$WAN" ingress tc qdisc add dev "$WAN" handle ffff: ingress tc qdisc del dev ifb4"$WAN" root tc qdisc add dev ifb4"$WAN" root cake bandwidth "$UP" besteffort ifconfig ifb4"$WAN" up tc filter add dev "$WAN" parent ffff: protocol all prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress redirect dev ifb4"$WAN" status shows: DOWN: qdisc cake 8003: root refcnt 9 bandwidth 117Mbit (?diffserv?) triple-isolate rtt 100.0ms noatm overhead 14 Sent 6280 bytes 27 pkt (dropped 0, overlimits 4 requeues 0) backlog 0b 0p requeues 0 memory used: 4736b of 5850000b capacity estimate: 117Mbit Tin 0 Tin 1 Tin 2 thresh 7312Kbit 117Mbit 29250Kbit target 5.0ms 5.0ms 5.0ms interval 100.0ms 100.0ms 10.0ms Pk-delay 0us 86us 0us Av-delay 0us 1us 0us Sp-delay 0us 0us 0us pkts 0 27 0 bytes 0 6280 0 way-inds 0 0 0 way-miss 0 5 0 way-cols 0 0 0 drops 0 0 0 marks 0 0 0 Sp-flows 0 1 0 Bk-flows 0 1 0 last-len 0 0 0 max-len 0 1412 0 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent 31023 bytes 32 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 UP: qdisc cake 8004: root refcnt 2 bandwidth 22Mbit besteffort triple-isolate rtt 100.0ms noatm overhead 14 Sent 29861 bytes 30 pkt (dropped 1, overlimits 42 requeues 0) backlog 0b 0p requeues 0 memory used: 53888b of 4Mb capacity estimate: 22Mbit Tin 0 thresh 22Mbit target 5.0ms interval 100.0ms Pk-delay 6.9ms Av-delay 349us Sp-delay 198us pkts 31 bytes 31273 way-inds 0 way-miss 4 way-cols 0 drops 1 marks 0 Sp-flows 1 Bk-flows 1 last-len 0 max-len 1412 From what I've tested to far everything works exactly as expected (upstream throughput, downstream throughput, etc) until the last line. When the egress traffic is redirected through the IFB device test downstream drops to the same rate specified by upstream. Hardware is Rangeley C2758, eth2 is an Intel I354 using Debian provided igb. What am I missing here? Thanks! -- Kristian Kielhofner