[Bloat] excellent result with OpenWrt 18.06.1 + CAKE on FTTH

[Dave Taht]

Mikael Abrahamsson <swmike at swm.pp.se> writes:

> Hi,
>
> I am running "stock" OpenWrt 18.06.1 on an WRT1200AC with
> CAKE+piece_of_cake.qos and set to 250 down 100 up. This is on an
> ethernet point-to-point FTTH connection in Stockholm,
> Sweden. Basically just installed OpenWrt and then added the
> sqm-scripts-extra and luci-app-sqm packages, went in and configured
> the correct settings in the web UI, and then everything was great.
>
> Biggest benefit with this FTTH setup is that I don't have to
> experience the first-hop sceduler I had with my previous DOCSIS
> connection (that also sometimes didn't do advertised bandwidth so I
> ended up getting 10-30ms of bufferbloat).
>
> http://www.dslreports.com/speedtest/41682104
>
> The smokeping screenshots below show the difference between DOCSIS and
> FTTH scheduler, but the much lower access RTT (1-2 ms ) and the lower
> PDV (which seems to be several ms on DOCSIS but not on my P2P FTTH).
>
> https://imgur.com/a/96dFdho
>
> Thanks everybody for the excellent packaging and ease of use for end
> users to get this to work. I've had this running now for 40 days
> without any issue.

After running a few days... (I imagine you've restarted cake a few times)

tc -s qdisc show dev your_device?
tc -s qdisc show dev your_ifbdevice?