* [dpdk-users] Hyper-threaded cores
@ 2021-04-22 8:19 Szwed, Maciej
2021-04-23 16:56 ` Stephen Hemminger
0 siblings, 1 reply; 4+ messages in thread
From: Szwed, Maciej @ 2021-04-22 8:19 UTC (permalink / raw)
To: users
Hi,
I'm wondering if there is any way to get information in DPDK which cores are hyper-threaded siblings. I would need that information when I'm using rte_power for changing cores frequencies.
Thanks,
Maciek
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] Hyper-threaded cores
2021-04-22 8:19 [dpdk-users] Hyper-threaded cores Szwed, Maciej
@ 2021-04-23 16:56 ` Stephen Hemminger
2021-04-29 10:10 ` Szwed, Maciej
0 siblings, 1 reply; 4+ messages in thread
From: Stephen Hemminger @ 2021-04-23 16:56 UTC (permalink / raw)
To: Szwed, Maciej; +Cc: users
On Thu, 22 Apr 2021 08:19:34 +0000
"Szwed, Maciej" <maciej.szwed@intel.com> wrote:
> Hi,
> I'm wondering if there is any way to get information in DPDK which cores are hyper-threaded siblings. I would need that information when I'm using rte_power for changing cores frequencies.
>
> Thanks,
> Maciek
Look at the DPDK cpu-layout script?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] Hyper-threaded cores
2021-04-23 16:56 ` Stephen Hemminger
@ 2021-04-29 10:10 ` Szwed, Maciej
2021-04-29 15:21 ` Stephen Hemminger
0 siblings, 1 reply; 4+ messages in thread
From: Szwed, Maciej @ 2021-04-29 10:10 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: users
Thanks Stephen - this is what I was looking for.
One more thing: Is there a chance to put such implementation in rte_power and make an API call for it?
Thanks,
Maciek
-----Original Message-----
From: Stephen Hemminger <stephen@networkplumber.org>
Sent: Friday, April 23, 2021 6:56 PM
To: Szwed, Maciej <maciej.szwed@intel.com>
Cc: users@dpdk.org
Subject: Re: [dpdk-users] Hyper-threaded cores
On Thu, 22 Apr 2021 08:19:34 +0000
"Szwed, Maciej" <maciej.szwed@intel.com> wrote:
> Hi,
> I'm wondering if there is any way to get information in DPDK which cores are hyper-threaded siblings. I would need that information when I'm using rte_power for changing cores frequencies.
>
> Thanks,
> Maciek
Look at the DPDK cpu-layout script?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] Hyper-threaded cores
2021-04-29 10:10 ` Szwed, Maciej
@ 2021-04-29 15:21 ` Stephen Hemminger
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Hemminger @ 2021-04-29 15:21 UTC (permalink / raw)
To: Szwed, Maciej; +Cc: users
On Thu, 29 Apr 2021 10:10:37 +0000
"Szwed, Maciej" <maciej.szwed@intel.com> wrote:
> Thanks Stephen - this is what I was looking for.
> One more thing: Is there a chance to put such implementation in rte_power and make an API call for it?
>
> Thanks,
> Maciek
>
> -----Original Message-----
> From: Stephen Hemminger <stephen@networkplumber.org>
> Sent: Friday, April 23, 2021 6:56 PM
> To: Szwed, Maciej <maciej.szwed@intel.com>
> Cc: users@dpdk.org
> Subject: Re: [dpdk-users] Hyper-threaded cores
>
> On Thu, 22 Apr 2021 08:19:34 +0000
> "Szwed, Maciej" <maciej.szwed@intel.com> wrote:
>
> > Hi,
> > I'm wondering if there is any way to get information in DPDK which cores are hyper-threaded siblings. I would need that information when I'm using rte_power for changing cores frequencies.
> >
> > Thanks,
> > Maciek
>
> Look at the DPDK cpu-layout script?
The CPU layout is very system, OS and application dependent.
The rte_power library could read the same stuff out of sysfs
but it is not clear what it could do with it.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-05-03 12:58 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-22 8:19 [dpdk-users] Hyper-threaded cores Szwed, Maciej
2021-04-23 16:56 ` Stephen Hemminger
2021-04-29 10:10 ` Szwed, Maciej
2021-04-29 15:21 ` Stephen Hemminger
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).