Ok, it ended up being partly that, and mainly needing to increase kernel params
for max TCP window memory, otherwise there was a hard limit on what I’d
actually end up getting for the TCP window.
Rates start getting finicky with these large TCP windows, go too large and the
rates can collapse f
You ran out of queue to store for that rtt.
netem limit 10 or higher for that.
On Fri, Jul 6, 2018 at 12:25 PM Pete Heist wrote:
>
>
> > On Jul 6, 2018, at 3:37 PM, Pete Heist wrote:
> >
> > I’m also satisfied for now that this shouldn’t hold us up. However, what
> > I’ll also want to try n
> On Jul 6, 2018, at 3:37 PM, Pete Heist wrote:
>
> I’m also satisfied for now that this shouldn’t hold us up. However, what I’ll
> also want to try next is netem on a separate veth device from cake. I believe
> Dave’s veth testing earlier was using three namespaces / veth devices, maybe
> fo
> On Jul 6, 2018, at 3:29 PM, Toke Høiland-Jørgensen wrote:
>
> Thanks for investigating! I'll take a look later. The fact that it
> happens with sfq as well means it's probably not cake-specific, though,
> so I don't think we should hold off on the upstream submission until
> we've figured it
Thank you both for the great work!
I will give it a try, too.
George
On Fri, Jul 6, 2018, 9:29 AM Toke Høiland-Jørgensen wrote:
> Pete Heist writes:
>
> > I don’t know if we want to call this an issue, but...
> >
> > I’m seeing a lockup with cake (and also sfq, but not either pfifo or
> > fq_c
Pete Heist writes:
> I don’t know if we want to call this an issue, but...
>
> I’m seeing a lockup with cake (and also sfq, but not either pfifo or
> fq_codel), when run over veth devices. Two network namespaces are
> created, one for client and one for server, each with one veth device.
> Netem
I don’t know if we want to call this an issue, but...
I’m seeing a lockup with cake (and also sfq, but not either pfifo or fq_codel),
when run over veth devices. Two network namespaces are created, one for client
and one for server, each with one veth device. Netem is added as the root qdisc
wi
