[Cake] total download rate with many flows

[George Amanakis]

Indeed. Also interplanetary essentially omits cake_advance_shaper for 
dropped packets (since cobalt never drops that way), almost disabling 
ingress mode. Which leads to other hosts having pings to WAN > 500ms 
when one of them is using many flows.

What I think is happening in ingress mode is that codel starts dropping 
packets in many flows simultaneously. Each time this happens, 
q->time_next_packet is advanced, eventually dis-proportionally to the 
actual rate, and this leads to the actual download rate being lower than 
set.

I am a big fan of ingress mode, just if we could correct this behaviour...


On 11/10/2017 3:42 PM, Dave Taht wrote:
> Interplanetary basically disables codel for most applications.
>
>> On 11/1/2017 6:01 PM, Dave Taht wrote:
>>> Awesome. thx. I will try to make time to look at these over the weekend.
> I still haven't had that weekend.
>