Re: [Cake] cake flenter results round 3

[Dave Taht <dave.taht@gmail.com>]

On Fri, Dec 1, 2017 at 11:45 AM, Dave Taht <dave.taht@gmail.com> wrote:
> On Fri, Dec 1, 2017 at 11:29 AM, Georgios Amanakis <gamanakis@gmail.com> wrote:
>> cake vs sfq and fq_codel looks great! You already have fq_codel in the
>> graphs, do you mean codel?

Heh. I meant codel, yes.

>> In terms of simulating CMTS I am trying to simulate a cable connection.
>> Is the following reasonable?
>> ===========8<===========
>> servers --- delay --- isp --- mbox --- clients
>>
>> delay:
>> tc qdisc replace dev delay.r root netem delay ZZms rate XXXmbit limit 100000
>> tc qdisc replace dev delay.l root netem delay ZZms rate XXXmbit limit 100000
>
> There is not much need to specify the rate here, just the delay. You
> could like say 10Gbit, if you wanted.
>
>> isp:
>> tc qdisc replace dev isp.l root bfifo limit 1024k
>> tc qdisc replace dev isp.r root bfifo limit 1024k
>
> No, because this is not the bottleneck queue. isp.r
>
>     tc qdisc del dev isp.r root # a little uncertain of what happens with handle
>     tc qdisc replace dev isp.r root handle 1: netem rate YYYmbit \
>              limit 100000
>     tc qdisc add dev isp.r parent 1:1 handle 10:1 bfifo limit 1024k
>
> I think.
>
>> mbox:
>> tc qdisc replace dev mbox.l root cake bandwidth YYYmbit
>> tc qdisc replace dev mbox.r root cake bandwidth YYYmbit
>
>     tc qdisc del dev mbox.r root # to leave it unshaped
>     # or put cake back in to shape it after the isp shaper above.
>
>
>
>> ===========8<===========
>>
>> George
>>
>> On Fri, Dec 1, 2017 at 2:23 PM, Dave Taht <dave.taht@gmail.com> wrote:
>>>
>>> That's really hard to argue with. An fq_codel same conditions (and
>>> pfifo and pie) might be interesting here.
>>>
>>> On Thu, Nov 30, 2017 at 9:13 AM, Georgios Amanakis <gamanakis@gmail.com>
>>> wrote:
>>> > I gave high RTT with high bandwidth a try:
>>> > server   --   delay  --  mbox  --  client
>>> > netserver   300/300ms  45/900mbit  flent
>>> >
>>> > I had to run flent with "-s 0.61" in order to avoid errors with fping
>>> > dying
>>> > prematurely.
>>> > Comparing noack, ack, and ack-aggressive, ack seems to give the highest
>>> > download rates.
>>> > Cake was setup with "rtt 600ms".
>>> >
>>> > George
>>> >
>>> > On Wed, Nov 29, 2017 at 6:25 PM, Jonathan Morton <chromatix99@gmail.com>
>>> > wrote:
>>> >>
>>> >> High RTT with relatively high bandwidth is traditionally considered
>>> >> challenging, and is representative of Australasian and satellite
>>> >> connections.  Definitely do some of those.
>>> >>
>>> >> Low bandwidth should also be interesting.  DSL at 4/1 Mbit is typical
>>> >> entry level package here.
>>> >>
>>> >> - Jonathan Morton
>>> >>
>>> >>
>>> >> _______________________________________________
>>> >> Cake mailing list
>>> >> Cake@lists.bufferbloat.net
>>> >> https://lists.bufferbloat.net/listinfo/cake
>>> >>
>>> >
>>> >
>>> > _______________________________________________
>>> > Cake mailing list
>>> > Cake@lists.bufferbloat.net
>>> > https://lists.bufferbloat.net/listinfo/cake
>>> >
>>>
>>>
>>>
>>> --
>>>
>>> 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