[Cake] [Fwd: Re: RHODIUM - nuking blue (for testing)]

[Dave Taht]

On Wed, Dec 6, 2017 at 2:35 PM, Luis E. Garcia <luis at bitamins.net> wrote:
> Dave,
> What is the highest bandwidth that you have been able to shape with CAKE on
> the APU2?

pete ran out of cpu at 900mbit in one of the early test rounds.

https://lists.bufferbloat.net/pipermail/cake/2017-November/003032.html

>
> Regards,
> Luis Garcia
>
> On Wed, Dec 6, 2017 at 3:08 PM, Dave Taht <dave at taht.net> wrote:
>>
>>
>> Groovy.
>>
>> I guess if I had any one goal, was that I wanted to have cake to shape
>> well on the APU2 at a gigabit. That's the highest end "home router" we
>> have, although it would be good to get results on things like the turris
>> omnia, also.
>>
>> I hope to start a round of profiling as to what can be optimized (out)
>> this weekend. Last I looked the hashing costs dominated.
>>
>> Pretty sure we're good at 200Mbit there (aside from the ingress bug).
>>
>> It would be nice to have a test showing blue being useful.
>>
>> Did you get cpu stats for the below tests?
>>
>> Georgios Amanakis <gamanakis at gmail.com> writes:
>>
>> > -------- Forwarded Message --------
>> > From: Georgios Amanakis <gamanakis at gmail.com>
>> > To: Dave Taht <dave.taht at gmail.com>
>> > Cc: Cake List <cake at lists.bufferbloat.net>, Jonathan Morton <chromatix9
>> > 9 at gmail.com>, Pete Heist <peteheist at gmail.com>
>> > Subject: Re: [Cake] RHODIUM - nuking blue (for testing)
>> > Date: Tue, 05 Dec 2017 20:58:39 -0500
>> >
>> > I just finished testing Rhodium, and I am supplementing Sunday's
>> > results.
>> >
>> > CMTS setup:
>> > server -- delay -- isp -- mbox -- client
>> >
>> > ISP limited at 200/10mbit.
>> > Cake/HTB shaping at 180/9mbit.
>> > RTT 20ms with cake's RTT set at 20ms
>> > rrul_be_nflows, 32 download, 8 upload streams.
>> > net.ipv4.tcp_ecn=2 in all nodes (linux default)
>> >
>> > Cake tested in all flow-isolation modes with all ack filtering options.
>> > HTB tested with codel,pie,fq,sfq,fq_codel.
>> >
>> > Rhodium(cakerhod) doesn't show much difference against Cobalt(cake).
>> >
>> > George
>> >
>> > On Tue, 2017-12-05 at 11:32 -0800, Dave Taht wrote:
>> >> Given some of the results thus far at various RTTs, and at higher
>> >> loads, like the ginormous one georgios just ran, I thought it might
>> >> be
>> >> useful to run a battery of tests with blue disabled.
>> >>
>> >> I haven't gone to the trouble of creating a formal branch - tho if I
>> >> did, I'd call it rhodium, as rhodium detectors are used in nuclear
>> >> reactors to measure the neutron flux level.
>> >>
>> >> untested-but-compiling-patch attached. I'm busy on a few other things
>> >> this week, and it is looking like we'll have to replace the xstats
>> >> structure with something smaller to go mainline.
>> >>
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>> >
>> >
>> >
>> >
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-- 

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