[Cake] quick patch for split_gso

Dave Taht dave.taht at gmail.com
Wed Jul 25 00:35:04 EDT 2018


On Tue, Jul 24, 2018 at 9:32 PM Dave Taht <dave.taht at gmail.com> wrote:
>
> and... whew - even at a gbit, this makes bql's estimator get a smaller value.
>
> root at spaceheater:/sys/class/net/enp6s0/queues/tx-0/byte_queue_limits# cat limit
> 130554
> tc qdisc replace dev enp6s0 root cake bandwidth 1gbit
> run netperf a few times

root at spaceheater:/sys/class/net/enp6s0/queues/tx-0/byte_queue_limits# cat limit

42392

I was puzzled there for a while as to why line rate interpacket
latency was so much worse in the "final" version that went upstream. I
think BQL was even lower when I was testing on a different box than
spaceheater



>
> On Tue, Jul 24, 2018 at 9:11 PM Dave Taht <dave.taht at gmail.com> wrote:
> >
> > I was happy to see the API didn't need to get modified.
> >
> > Not even compile tested patch attached.
> >
> > also, in looking at the gso code, when enabled, is there any way to pull the
> > actual packets out in the stats?
> >
> > --
> >
> > 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


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