Re: [Bloat] Cake "out of tree" on Debian

[Y <intruder_tkyf@yahoo.fr>]

Hi,all.

Did you install cake qdisc to Debian 8.7 as usual?
I can not at follow debian. 

Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.39-1 (2016-12-30) i686
GNU/Linux

Yuta.

2017-01-28 (土) の 21:48 -0500 に Kristian Kielhofner さんは書きました:
> 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!
>