Re: Cannot set affinity - pthread_setaffinity_np - DPDK21

[Kamaraj P <pkamaraj@gmail.com>]

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Hi Stephen,
Yes. The core mask we have aligned to separate cgroup. Probably this might
be an issue here. We will change the alignment in  our DPDK application.
BTW is there a way to check the cores affinity set to DPDK after
rte_eail_init ? Do we have to use the taskset command ?
Please advise.

Thanks,
Kamaraj

On Fri, Sep 16, 2022 at 8:43 PM Stephen Hemminger <
stephen@networkplumber.org> wrote:

> On Fri, 16 Sep 2022 09:37:32 +0530
> Kamaraj P <pkamaraj@gmail.com> wrote:
>
> > Hi Team,
> > Have sent a message to DPDK alias. Can you please have a look and share
> > your thoughts on this ?
>
> Top posting and nag messages just make developers angry
>
> >
> > On Thu, Sep 15, 2022 at 10:27 PM Kamaraj P <pkamaraj@gmail.com> wrote:
> >
> > > Hi Team,
> > >
> > > There are lot of discussion about below code:
> > >  rte_panic("Cannot set affinity %d i %d threadid %d\n", ret, i,
> > > lcore_config[i].thread_id);
> > >
> > > Is there any guildiness(or patch) from the DPDK community about
> avoiding
> > > these panic messages in our DPDK application ? Even if we remove the
> panic
> > > to replace the warning , will it lead to any impact ?
>
> Did you check that the core mask passed into the application is valid?
> Or that that your application is not running in a container which blocks
> access to other CPU's.
>

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