[Cake] Possible BUG - parent backlog incorrectly updated in case of NET_XMIT_CN

[Jonathan Morton]

> On 12 Jun, 2016, at 20:48, Eric Dumazet <eric.dumazet at gmail.com> wrote:
> 
>> A) In my failing to make sense of all the dialog around these patches
>> ( https://lwn.net/Articles/687617/  ), it sounds like this (inbound
>> and outbound) processing are still locked to a single thread,
>> essentially?
> 
> Om a router, these discussions should not matter really, since the
> workload is about receiving/sending packets without user space
> intervention (well... I do hope this !)

Dave’s point is that inbound and outbound processing could in principle be on *two* distinct threads, potentially doubling aggregate throughput in a CPU-limited environment.

 - Jonathan Morton