* Cannot set affinity - pthread_setaffinity_np - DPDK21
@ 2022-09-15 16:57 Kamaraj P
2022-09-16 4:07 ` Kamaraj P
0 siblings, 1 reply; 6+ messages in thread
From: Kamaraj P @ 2022-09-15 16:57 UTC (permalink / raw)
To: dev
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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 ?
Please suggest.
Thanks,
Kamaraj
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Cannot set affinity - pthread_setaffinity_np - DPDK21 2022-09-15 16:57 Cannot set affinity - pthread_setaffinity_np - DPDK21 Kamaraj P @ 2022-09-16 4:07 ` Kamaraj P 2022-09-16 15:13 ` Stephen Hemminger 0 siblings, 1 reply; 6+ messages in thread From: Kamaraj P @ 2022-09-16 4:07 UTC (permalink / raw) To: Fred.L.Templin, Burakov, Anatoly, Bruce Richardson, David Marchand, Stephen Hemminger Cc: Nageswara Rao Penumarthy, dev, kalas [-- Attachment #1: Type: text/plain, Size: 606 bytes --] Hi Team, Have sent a message to DPDK alias. Can you please have a look and share your thoughts on this ? Thanks, Kamaraj 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 ? > > Please suggest. > > Thanks, > Kamaraj > [-- Attachment #2: Type: text/html, Size: 1048 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cannot set affinity - pthread_setaffinity_np - DPDK21 2022-09-16 4:07 ` Kamaraj P @ 2022-09-16 15:13 ` Stephen Hemminger 2022-09-18 16:35 ` Kamaraj P 0 siblings, 1 reply; 6+ messages in thread From: Stephen Hemminger @ 2022-09-16 15:13 UTC (permalink / raw) To: Kamaraj P Cc: Fred.L.Templin, Burakov, Anatoly, Bruce Richardson, David Marchand, Nageswara Rao Penumarthy, dev, kalas 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cannot set affinity - pthread_setaffinity_np - DPDK21 2022-09-16 15:13 ` Stephen Hemminger @ 2022-09-18 16:35 ` Kamaraj P 2022-09-19 17:04 ` Stephen Hemminger 0 siblings, 1 reply; 6+ messages in thread From: Kamaraj P @ 2022-09-18 16:35 UTC (permalink / raw) To: Stephen Hemminger Cc: Fred.L.Templin, Burakov, Anatoly, Bruce Richardson, David Marchand, Nageswara Rao Penumarthy, dev, kalas [-- Attachment #1: Type: text/plain, Size: 1327 bytes --] 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. > [-- Attachment #2: Type: text/html, Size: 1972 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cannot set affinity - pthread_setaffinity_np - DPDK21 2022-09-18 16:35 ` Kamaraj P @ 2022-09-19 17:04 ` Stephen Hemminger 2022-09-20 13:26 ` Kamaraj P 0 siblings, 1 reply; 6+ messages in thread From: Stephen Hemminger @ 2022-09-19 17:04 UTC (permalink / raw) To: Kamaraj P Cc: Fred.L.Templin, Burakov, Anatoly, Bruce Richardson, David Marchand, Nageswara Rao Penumarthy, dev, kalas On Sun, 18 Sep 2022 22:05:57 +0530 Kamaraj P <pkamaraj@gmail.com> wrote: > 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 ? DPDK doesn't (and shouldn't) know about what cgroups has set. You need to align the cgroup and the startup flags of the application. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Cannot set affinity - pthread_setaffinity_np - DPDK21 2022-09-19 17:04 ` Stephen Hemminger @ 2022-09-20 13:26 ` Kamaraj P 0 siblings, 0 replies; 6+ messages in thread From: Kamaraj P @ 2022-09-20 13:26 UTC (permalink / raw) To: Stephen Hemminger Cc: Fred.L.Templin, Burakov, Anatoly, Bruce Richardson, David Marchand, Nageswara Rao Penumarthy, dev, kalas [-- Attachment #1: Type: text/plain, Size: 627 bytes --] Thank you for the clarification. On Mon, 19 Sep 2022, 10:34 pm Stephen Hemminger, <stephen@networkplumber.org> wrote: > On Sun, 18 Sep 2022 22:05:57 +0530 > Kamaraj P <pkamaraj@gmail.com> wrote: > > > 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 ? > > DPDK doesn't (and shouldn't) know about what cgroups has set. > You need to align the cgroup and the startup flags of the application. > [-- Attachment #2: Type: text/html, Size: 1025 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-09-20 13:26 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-09-15 16:57 Cannot set affinity - pthread_setaffinity_np - DPDK21 Kamaraj P 2022-09-16 4:07 ` Kamaraj P 2022-09-16 15:13 ` Stephen Hemminger 2022-09-18 16:35 ` Kamaraj P 2022-09-19 17:04 ` Stephen Hemminger 2022-09-20 13:26 ` Kamaraj P
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