What kind of performance should be expected when applying FQ-Codel on a shaper policy?

General questions
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21

Out of the blue, if you remove ALL the QoS config (and reboot) - how are the results then?

Because over here I have been running fq_codel with bbr for some time without any of the issues mentioned in this thread.

22

I think your account was probably just marked as “new” which limits you - you should now be OK to post links/images/reply freely as you’ve posted a number of times now.

If not please send me a DM and I’ll check it.

23

Testing, testing, is this mic on?

I would love a FTTH vyos user to run the same test series oleg just ran for starlink: Starlink terminal revision 4: overview and tests – Oleg Kutkov personal blog

1 Like
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I’m on a DOCSIS 3 connection, provisioned to roughly 350 down / 11 up. And I am using an APU4. Results vary a little from run to run, but these are representative. FQ-CODEL seems to be working now. (I haven’t tried CAKE yet. Something to try when I get time.)

With no QOS on 1.4epa1 (built via Docker), Waveform’s test gave me:
Grade B
Download speed 368 Mbps
Upload speed 11.1 Mbps
Unloaded 22 ms
Download +19
Upload +53

I got very good results on 1.4epa1 with just fair-queuing (all defaults, BW = 325/11)
Grade A+
Download speed 315 Mbps
Upload speed 10.4 Mbps
Unloaded 21 ms
Download +0
Upload +0

Now, with VyOS 1.4-rolling-202403072259 (also build via Docker), running FQ-CODEL (all defaults, BW = 325/11), I get:
Grade A
Download speed 315 Mbps
Upload speed 10.5 Mbps
Unloaded 21 ms
Download +6
Upload +0

The relevant configuration commands are:

set interfaces ethernet eth0 redirect ‘ifb0’
set interfaces input ifb0
set qos interface eth0 egress ‘EGRESS_QOS’
set qos interface ifb0 egress ‘INGRESS-SHAPING’
set qos policy shaper EGRESS_QOS bandwidth ‘11mbit’
set qos policy shaper EGRESS_QOS default bandwidth ‘11mbit’
set qos policy shaper EGRESS_QOS default queue-type ‘fair-queue’
set qos policy shaper INGRESS-SHAPING bandwidth ‘325mbit’
set qos policy shaper INGRESS-SHAPING default bandwidth ‘325mbit’
set qos policy shaper INGRESS-SHAPING default queue-type ‘fair-queue’

And just change ‘fair-queue’ to ‘fq-codel’ then commit to get the fq-codel results.