Community discussions

MikroTik App

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by dtaht
Thu Oct 21, 2021 5:22 pm
Forum: RouterOS v7 BETA
Topic: some quick comments on configuring cake
Replies: 10
Views: 1635

Cake's bandwidth parameter

We try to stress that the default options for cake (essentially just the bandwidth parameter) are good enough for most purposes. That said, there are two important differences between how cake's bandwidth shaper works vis a vis htb that are useful to highlight. Token bucket designs date back to the ...
by dtaht
Fri Oct 15, 2021 2:57 am
Forum: General
Topic: CoDel support?
Replies: 46
Views: 17689

Re: CoDel support?

we are doing a more or less "ask us anything" over here, on the fq_codel and cake support in v7: viewtopic.php?t=179307
by dtaht
Thu Oct 14, 2021 4:40 am
Forum: RouterOS v7 BETA
Topic: some quick comments on configuring cake
Replies: 10
Views: 1635

cake (or fq_codel) vs sfq

I thought I'd write a brief note about SFQ vs CAKE. I think highly of SFQ. If I could go back in time to 2002, when it first arrived in linux, I'd have tried to make it the default, instead of a FIFO, given what I know now. It was *the* fundamental component in wondershaper. Nearly any place you hav...
by dtaht
Wed Oct 13, 2021 7:25 pm
Forum: RouterOS v7 BETA
Topic: fq_codel or cake in v7
Replies: 68
Views: 27150

Re: fq_codel or cake in v7

Since fq_codel and cake are now in the beta, I am going to try and talk to the issues on this thread over here:

viewtopic.php?p=885549
by dtaht
Wed Oct 13, 2021 7:08 pm
Forum: RouterOS v7 BETA
Topic: some quick comments on configuring cake
Replies: 10
Views: 1635

Re: some quick comments on configuring cake

Do you have any tips for LTE connections? Especially ones that go from ~5Mbps to 70Mbps in a few hours? The auto ingress doesn't always act as I'd expect it to, and I'm not sure if it's RouterOS' implementation, or a bug, or me not understanding things. Don't use them? We get the "how can an e...
by dtaht
Sun Oct 10, 2021 8:44 pm
Forum: RouterOS v7 BETA
Topic: some quick comments on configuring cake
Replies: 10
Views: 1635

Re: some quick comments on configuring cake

To give an example of where I'd hoped to see fq_codel or cake make more of a dent in the mikrotik universe, consider a topology like this: 10Gbit -> 1GBit port A -> 1Gbit port B 10 more ports In ANY fast->slow rate transition fair queuing, and aqm, can soften the impact of that 10Gbit interface (or ...
by dtaht
Sun Oct 10, 2021 6:56 pm
Forum: RouterOS v7 BETA
Topic: v7.1rc4 [development] is released!
Replies: 266
Views: 38817

Re: v7.1rc4 [development] is released!

Ah, I read the doc. All those options are exposed. Yay! I put a PSA about cake's options over here: https://forum.mikrotik.com/viewtopic.php?p=885000#p885000 Selfishly I'd really like to see from y'all some before (say, htb + sfq)/ after results (cake) on mikrotik's hw. Particularly the higher end s...
by dtaht
Sun Oct 10, 2021 3:29 pm
Forum: RouterOS v7 BETA
Topic: some quick comments on configuring cake
Replies: 10
Views: 1635

some quick comments on configuring cake

Hi, one of the contributors to cake here. I'm pleased y'all are finally shipping it, but I have a few comments: * A modern version of cake has support for the new diffserv LE codepoint. I'd dearly like support for that in mikrotik given how problematic CS1 proved to be, and it's a teeny patch. * One...
by dtaht
Sun Oct 10, 2021 5:40 am
Forum: General
Topic: Bufferbloat Persists Despite Hard Limiting Bandwidth in Queue Tree
Replies: 4
Views: 597

Re: Bufferbloat Persists Despite Hard Limiting Bandwidth in Queue Tree

You are the first person I've found on mikrotik fiddling with their fq_codel implementation. (I'm one of the authors of fq_codel, cake, etc) And you are tackling the worst problem "out there" for bufferbloat - inbound shaping a low rate lte connection. These sorts of connections are not on...
by dtaht
Sun Oct 10, 2021 3:02 am
Forum: RouterOS v7 BETA
Topic: v7.1rc4 [development] is released!
Replies: 266
Views: 38817

Re: v7.1rc4 [development] is released!

Merely someone here posting a tc -s qdisc show with cake output showing some drops or marks and backlog would make me very happy after waiting all this time for mikrotik to catchup Hi Dave, fancy seeing you around here! Thanks for your work in ridding the world of bufferbloat! Unfortunately, Mikrot...
by dtaht
Sun Oct 10, 2021 2:59 am
Forum: RouterOS v7 BETA
Topic: v7.1rc4 [development] is released!
Replies: 266
Views: 38817

Re: v7.1rc4 [development] is released!

Dave, Thank you for the work in making CAKE even exist. It will finally give me a DSCP aware queuing discipline on Mikrotik. Now I just need them to use a modern implementation of CAKE where the Least Effort DSCP mark is LE(000001) instead of CS1(001000). And if they could please add Queue Type sel...
by dtaht
Fri Oct 08, 2021 4:30 am
Forum: RouterOS v7 BETA
Topic: v7.1rc4 [development] is released!
Replies: 266
Views: 38817

Re: v7.1rc4 [development] is released!

What's the correlation between the date a user joined a forum and the actual content of it... We all have our needs and what feels important to us, and when we focus on that we love individually, we tend to see more of it and that's natural. So you dismiss it as unimportant in a disdain manner. Why...
by dtaht
Sat Feb 01, 2020 3:59 am
Forum: RouterOS v7 BETA
Topic: fq_codel or cake in v7
Replies: 68
Views: 27150

Re: fq_codel or cake in v7

I do also keep hoping for fq_codel or cake in miktrotik. However, it's not an "or" choice so much, but an informed one. Wifi: fq_codel for 3 wifi chipsets (mt76, ath9k, and ath10k) have existed now for a couple years ( https://lwn.net/Articles/705884/ ) however a key feature for the ath10k...
by dtaht
Sat Mar 07, 2015 8:10 am
Forum: General
Topic: RouterOS v7.0 beta1 - when?
Replies: 613
Views: 213657

fq_codel in 7.0?

Have you got fq_codel working yet in 7.0? I have done fq_codel backports (where needed) for several manufacturers at this point, and can help out - I also do things like BQL - and I would really like to get some performance numbers out of it + sqm-scripts on your higher end hardware, when your next ...
by dtaht
Fri Sep 26, 2014 4:13 am
Forum: General
Topic: Got fq_codel yet?
Replies: 36
Views: 15251

Re: Got fq_codel yet?

To clear up some stuff - fq_codel became stable in linux 3.6, and was backported by qualcomm-atheros folk as far back as linux 2.6.32 as part of the compat-wireless patchset. If you are using that patchset on an older kernel, you already have fq_codel. Most of the core de-bufferbloating work entered...
by dtaht
Wed Sep 17, 2014 9:45 am
Forum: General
Topic: Got fq_codel yet?
Replies: 36
Views: 15251

Got fq_codel yet?

I am curious if fq_codel is available in these latest beta releases?
by dtaht
Sat Aug 03, 2013 6:19 am
Forum: General
Topic: CoDel support?
Replies: 46
Views: 17689

Re: CoDel support?

A couple notes: 1) codel and fq_codel are not words for the same thing. codel is a drop strategy that keeps queue lengths shorter and overall latency lower. fq_codel combines drr-style packet scheduling with a few twists to give sparser flows (think dns, voip, and gaming packets) priority in the que...