[PATCH 1/6] examples/l3fwd: fix lcore ID restriction

[David Marchand]

On Thu, Mar 7, 2024 at 10:16 AM Morten Brørup <mb at smartsharesystems.com> wrote:
>
> > From: David Marchand [mailto:david.marchand at redhat.com]
> > Sent: Thursday, 7 March 2024 09.34
> >
> > On Mon, Dec 18, 2023 at 8:49 AM Sivaprasad Tummala
> > <sivaprasad.tummala at amd.com> wrote:
> > >
> > > Currently the config option allows lcore IDs up to 255,
> > > irrespective of RTE_MAX_LCORES and needs to be fixed.
> >
> > "needs to be fixed" ?
> > I disagree on the principle.
> > The examples were written with limitations, this is not a bug.
>
> Unfortunately, l3fwd is not only an example; it is also used for benchmarking. It really belongs in some other directory.
>
> With that in mind, I would consider it a bug that the benchmarking application cannot handle the amount of cores available in modern CPUs.

This is not a bug.

And with careful configuration (using --lcores), you can already start
l3fwd with 254 datapath threads, right?


-- 
David Marchand