From: Stephen Hemminger <stephen@networkplumber.org>
To: "Szwed, Maciej" <maciej.szwed@intel.com>
Cc: "users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] Hyper-threaded cores
Date: Thu, 29 Apr 2021 08:21:31 -0700 [thread overview]
Message-ID: <20210429082131.3e08e670@hermes.local> (raw)
In-Reply-To: <BL0PR11MB2948E25102E424415AA19FE7975F9@BL0PR11MB2948.namprd11.prod.outlook.com>
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.
prev parent reply other threads:[~2021-04-29 15:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 8:19 Szwed, Maciej
2021-04-23 16:56 ` Stephen Hemminger
2021-04-29 10:10 ` Szwed, Maciej
2021-04-29 15:21 ` Stephen Hemminger [this message]
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