Re: [PATCH net-next] net/core: add optional threading for backlog processing

[Felix Fietkau]

On 28.03.23 04:06, Jakub Kicinski wrote:
> On Sat, 25 Mar 2023 06:42:43 +0100 Felix Fietkau wrote:
> > >> In my tests it brings down latency (both avg and p99) considerably in
> > >> some cases. I posted some numbers here:
> > >> https://lore.kernel.org/netdev/e317d5bc-cc26-8b1b-ca4b-66b5328683c4@xxxxxxxx/  
> > > 
> > > Could you provide the full configuration for this test?
> > > In non-threaded mode the RPS is enabled to spread over remaining
> > > 3 cores? 
> >
> > In this test I'm using threaded NAPI and backlog_threaded without any 
> > fixed core assignment.
>
> I was asking about the rps_threaded=0 side of the comparison.
> So you're saying on that side you were using threaded NAPI with
> no pinning and RPS across all cores?
Yes.

- Felix