[Cake] cake at 60gbit

[Toke Høiland-Jørgensen]

Jonathan Morton <chromatix99 at gmail.com> writes:

>> On 3 Jul, 2018, at 1:23 am, Toke Høiland-Jørgensen <toke at toke.dk> wrote:
>> 
>> My hunch is that this has something to do with the way mlx5 uses
>> multiple receive queues (and thus multiple CPUs). Which is probably
>> different from veth...
>
> At this stage I'm pretty confident it has nothing to do with Cake, and
> everything to do with the Mellanox hardware and driver. It does strike
> me that Linux' default handling of multiqueue hardware doesn't map
> very well to the qdisc interface.

Well, it doesn't happen with fq_codel, so even if it is a driver bug, it
is being triggered by cake specifically...

-Toke