[Cake] Cake vs fq_codel and c/burst on an ER-X bridge

[Dave Taht]

On Thu, Sep 20, 2018 at 11:19 AM Sebastian Moeller <moeller0 at gmx.de> wrote:
>
> Hi Dave,
>
> please excuse my apparent impatience, all I wanted to convey is that only after proper testing should we roll-out the new burst configuration mode to all users ;) . One thing we should have by then is a decent idea of what to select as default burst duration. But since this is not urgent, there is no objective need to expedite this testing...

I'm delighted you jumped on it. I am just slow these days.

>
> Best Regards
>         Sebastian
>
>
> > On Sep 20, 2018, at 19:05, Dave Taht <dave.taht at gmail.com> wrote:
> >
> > On Thu, Sep 20, 2018 at 3:34 AM Sebastian Moeller <moeller0 at gmx.de> wrote:
> >>
> >> Hi Dave,
> >>
> >>
> >>
> >>> On Sep 19, 2018, at 19:02, Dave Taht <dave.taht at gmail.com> wrote:
> >>>
> >>> thx!
> >>
> >>        You are welcome, but does this actually work for you? I want to clean up things by removing the old burst scaling mode, but want/need confirmation that the new duration based method actually works as intended. (My next step then will be putting the axe on the quantum scaling, where I plan to use exactly the same size as for burst, on the theory that worst case we can only push bust bytes to the NIC and should try to service the other priority tiers at latest on the next HTB execution iteration).
> >>
> >> Best Regards
> >>        Sebastian
> >
> > I meant to get time to fiddle with it yesterday and I didn't. It's
> > sort of stacked in with the ecn-babel test
> >
> >>
> >>
> >>
> >>> On Wed, Sep 19, 2018 at 6:28 AM Sebastian Moeller <moeller0 at gmx.de> wrote:
> >>>>
> >>>> Hi Dave, hi All,
> >>>>
> >>>> so I tried to run with this idea and prototyped something into the burst_by_duration branch at the sqm repository. Would be interested to hear whether that does "the right thing" with your APU or on other's devices? The key variable is TARGET_BURST_DUR_MS in defaults.sh. Let me know how this performs for you (or whether there are bugs). As Toke proposed elsewhere I will try to streamline that branch to only configure burst size by duration so expect some changes in organization, but it should keep functional.
> >>>>
> >>>> Best Regards
> >>>>       Sebastian
> >>>>
> >>>>> On Sep 11, 2018, at 10:20, Dave Taht <dave.taht at gmail.com> wrote:
> >>>>>
> >>>>> What I "fixed" was on the apu2 with the burst/cburst change, I went
> >>>>> from completely bottlenecked on one softirq to having 3 eat cpu, and
> >>>>> from 400mbps to 900mbps. Now, that's a quad core and the e1000 (?)
> >>>>> driver. The edgerouter X is a dual core, and you did see a small
> >>>>> improvement in throughput, but I'd hoped for more.
> >>>>
> >>>
> >>>
> >>> --
> >>>
> >>> Dave Täht
> >>> CEO, TekLibre, LLC
> >>> http://www.teklibre.com
> >>> Tel: 1-669-226-2619
> >>
> >
> >
> > --
> >
> > Dave Täht
> > CEO, TekLibre, LLC
> > http://www.teklibre.com
> > Tel: 1-669-226-2619
>


-- 

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