Re: [Cake] cake flenter results round 2

[Georgios Amanakis <gamanakis@gmail.com>]

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I just ran some rrul tests, but I am getting a strange behaviour.
Setup:
server        --        delay        --        mbox        --        client
netserver         50ms/50ms         45/900mbit

cli:
https://drive.google.com/open?id=10CwMwLItL6bVSyMTp8-kVXWuFBAG6ft2
1) ./vsetup.sh (includes vcake.sh)
2) ip netns exec server netserver
3) ip netns exec client flent ....

rrul1 flent:
https://drive.google.com/open?id=1XB1k68fv4PCsRhSbmbCMvqOLk7Dv08bh
rrul1 tc qdisc show:
https://drive.google.com/open?id=1mKEYq7iDauOL5A9lCat_jAUgE7Eq6et8

rrul2 flent:
https://drive.google.com/open?id=19OhJdOtMLcsNM66Jy-Edn7rD8TC9WelJ
rrul2 tc qdisc show:
https://drive.google.com/open?id=1HtgjwvmTbr7XQKRp4XOqVvkz8FzCxdTk

rrul1 looks good, while rrul2 has a very strange trace. Look at the
upload/ping. The setup was exactly the same between these two. If I lower
the mbox bandwidth to 10/200mbit I don't get this behaviour anymore, the
traces look like rrul1.

Am I doing something wrong?

George

On Tue, Nov 28, 2017 at 7:20 PM, Georgios Amanakis <gamanakis@gmail.com>
wrote:

>
>
> I got Dave's netns scripts working on my server. Will try to run rrul
> tests on a 200/10mbit tonight.
>
> George
>
> On Nov 28, 2017 7:16 PM, "Pete Heist" <peteheist@gmail.com> wrote:
>
>>
>> > On Nov 28, 2017, at 11:52 PM, Dave Taht <dave@taht.net> wrote:
>> >
>> > A diffserv 200Mbit result would be good.
>> >
>> > We are utterly out of cpu at 900mbits here.
>> >
>> > <not_winning_on_cpu.png>
>>
>> Wow, I see flent’s combination plots are handy though.
>>
>> Stuff to sort in irtt also. Merely setting the source IP of an outgoing
>> packet doubles allocated heap when it calls into x/net code. Super.
>>
>> Ok, here’s a quick veth try but I gotta get to sleep so I’m not
>> investigating much ’til later. I wonder if 4.9.0-4 is enough:
>>
>> root@apu2a:/home/sysadmin/src/veth# cat settings.example
>> export HOSTS="server client delay mbox"
>>
>> # I’ve been a bad boy and did sudo make install in iproute2-cake-next
>> export TC=/sbin/tc
>> root@apu2a:/home/sysadmin/src/veth# ./vsetup.sh
>> Cannot remove namespace file "/var/run/netns/server": No such file or
>> directory
>> Cannot remove namespace file "/var/run/netns/client": No such file or
>> directory
>> Cannot remove namespace file "/var/run/netns/delay": No such file or
>> directory
>> Cannot remove namespace file "/var/run/netns/mbox": No such file or
>> directory
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> RTNETLINK answers: File exists
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> net.ipv4.ip_forward = 1
>> net.ipv6.conf.all.forwarding = 1
>> root@apu2a:/home/sysadmin/src/veth# ./vcake.sh
>> root@apu2a:/home/sysadmin/src/veth# ip netns exec server flent -H
>> 10.10.2.2 rrul_be
>> Started Flent 1.1.1-git-5daa2b3 using Python 2.7.13.
>> Starting rrul_be test. Expected run time: 70 seconds.
>> WARNING: Program exited non-zero.
>> Runner class: NetperfDemoRunner
>> Command: /usr/bin/netperf -P 0 -v 0 -D -0.20 -4 -Y CS0,CS0 -H 10.10.2.2
>> -p 12865 -t UDP_RR -l 70 -F /dev/urandom    --   -H 10.10.2.2 -k
>> THROUGHPUT,LOCAL_CONG_CONTROL,REMOTE_CONG_CONTROL,TRANSPORT_
>> MSS,LOCAL_TRANSPORT_RETRANS,REMOTE_TRANSPORT_RETRANS,LOCAL_S
>> OCKET_TOS,REMOTE_SOCKET_TOS,DIRECTION,ELAPSED_TIME,PROTOCOL,
>> LOCAL_SEND_SIZE,LOCAL_RECV_SIZE,REMOTE_SEND_SIZE,REMOTE_RECV_SIZE
>> Return code: 255
>> Stdout: establish control: are you sure there is a netserver listening on
>> 10.10.2.2 at port 12865?
>> establish_control could not establish the control connection from 0.0.0.0
>> port 0 address family AF_INET to 10.10.2.2 port 12865 address family AF_INET
>>
>> ...
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>> https://lists.bufferbloat.net/listinfo/cake
>>
>
>

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