I put a bug here. Someone with a non apu product struggling with
shaping (edgerouter? omnia?)

https://github.com/tohojo/sqm-scripts/issues/71


On Thu, Sep 6, 2018 at 10:51 AM Pete Heist <p...@heistp.net> wrote:
>
> Cool, well I for one would like to see the APU be able to handle higher 
> speeds, for FreeNet’s backhaul, at least. Although frankly, I’ve not 
> definitively witnessed any significant bloat in their backhaul yet with 
> production traffic.
>
> A good number of their routers are still ALIX 
> (https://www.pcengines.ch/alix2d2.htm), all of which are on an upgrade list. 
> These don’t do hfsc + sfq on kernel 2.6.26 much beyond about 70 Mbit. Not a 
> problem to focus on… :)
>
> On Sep 4, 2018, at 11:16 PM, Dave Taht <dave.t...@gmail.com> wrote:
>
> my guess is that burst and cburst should scale roughly as a function
> of the bytes that can fit into 1ms.
> On Tue, Sep 4, 2018 at 2:14 PM Dave Taht <dave.t...@gmail.com> wrote:
>
>
> making htb's cburst and burst parameters 64k gets the APU2  up to
> where it can shape 900mbits. 3 ksoftirq handlers start getting cpu
> time, and we end up 54% idle to achiefe that.
>
> I should really go around running my own old code. I was deeply
> involved in sqm when we still had to run at sub 200mbit levels. since
> then it's been
> mostly tbf (burst 64k) + fq_codel or cake, and me ignoring various bug
> reports about it not scaling well enough at higher rates.
> On Tue, Sep 4, 2018 at 12:59 PM Dave Taht <dave.t...@gmail.com> wrote:
>
>
> less than scientifically (via monitoring top) - on the apu2
>
> 100Mbit sqm (htb + fq_codel)
>
> fq_codel_mainline | fq_codel_fast
> idle 78.8                | 83.5 |
> si    20                   | 16.1 |
>
> Yea! But:
>
> 900Mbit sqm (htb + fq_codel)
>
> fq_codel_mainline | fq_codel_fast
> idle 74.4                | 74.4 |
> si    25                   | 25.1 |
>
> Here: completely bottlenecked on ksoftirqd - and I only get 340Mbits
> out of the 900mbit setting. quantum 96k and burst of 15000. Haven't
> fiddled with higher values yet...
>
>


-- 

Dave Täht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619
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