[Bloat] Getting started with sqm-scripts - latency good, bandwidth decimated

[Etienne Champetier]

Hi,

2016-01-20 18:42 GMT+01:00 moeller0 <moeller0 at gmx.de>:

> Hi Etienne,
>
> I could be out to lunch, but I always assumed for virtual interfaces the
> txque does not matter as packets are immediate passed to the real interface.
>

This was not the case in the past (I remember losing quite some time on
this some years ago),
but i don't know if it's still the case.

2 choices: tests or read the code :)



>
> Best Regards
>         Sebastian
>
> > On Jan 20, 2016, at 18:09 , Etienne Champetier <
> champetier.etienne at gmail.com> wrote:
> >
> >
> >
> > 2016-01-20 17:54 GMT+01:00 Brandon Applegate <brandon at burn.net>:
> >
> >> On Jan 20, 2016, at 11:47 AM, Etienne Champetier <
> champetier.etienne at gmail.com> wrote:
> >>
> >> Hi Brandon,
> >>
> >> e quickly read the thread (maybe too quickly),
> >> from what i remember for virtual interface txqueuelen is 0 by default,
> so nothing work as expected
> >> can you check the txqueuelen with ip -a ?
> >> (i've found no reference to txqueuelen in sqm-scripts)
> >>
> >> see also
> >>
> https://wiki.openwrt.org/doc/howto/packet.scheduler/packet.scheduler#tips
> >
> > I haven’t done anything manually to change txqueuelen.  Whatever is here
> is default (1000 on eth) or I assume set by sqm-scripts / tc (32).
> >
> > I believe this is the output you are looking for:
> >
> > —
> >
> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
> >     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> > 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
> UP qlen 1000
> >     link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
> > 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
> UP qlen 1000
> >     link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
> > 4: eth0.666 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb
> state UP
> >     link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
> > 5: eth0.10 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UP
> >     link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
> > 6: eth0.11 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UP
> >     link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
> > 7: ifb0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN qlen 32
> >     link/ether 52:18:cd:a7:ad:71 brd ff:ff:ff:ff:ff:ff
> > 8: ifb1: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN qlen 32
> >     link/ether 5e:f0:86:88:8d:8e brd ff:ff:ff:ff:ff:ff
> > 11: ifb4eth0.666: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc htb state
> UNKNOWN qlen 32
> >     link/ether 86:68:83:69:2e:b2 brd ff:ff:ff:ff:ff:ff
> > —
> >
> >
> > no qlen means 0 I think
> > maybe try
> > ip link set eth0.666 txqueuelen 1000
> >
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>
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