[Starlingx-discuss] How to enable cpu_dedicated_set

[open infra]

On Wed, Dec 8, 2021 at 3:16 AM Brito, Thiago <Thiago.Brito at windriver.com>
wrote:

> Did you do an application-apply after you changed the processors to
> application-isolated? Can you send the output of the command below for you
> compute pods:
>
> kubectl exec -n openstack nova-compute-[woker|controller]-X-XXXXX-xxxx --
> cat /etc/nova/nova.conf|grep dedicated_set
>
>
Is there way I can enable application-isolation across all the worker nodes
including new nodes to be added in future?

Don't forget to change the id of the pod for your compute pods.
>
> Thiago
> ------------------------------
> *From:* open infra <openinfradn at gmail.com>
> *Sent:* Tuesday, December 7, 2021 5:45 AM
> *To:* Brito, Thiago <Thiago.Brito at windriver.com>
> *Cc:* starlingx-discuss at lists.starlingx.io <
> starlingx-discuss at lists.starlingx.io>
> *Subject:* Re: [Starlingx-discuss] How to enable cpu_dedicated_set
>
>
> [Please note: This e-mail is from an EXTERNAL e-mail address]
> Here is the info from STX side
>
>
> Processors 2 Physical Cores Per Processor 32 Hyper-Threading Yes
> CPU Assignments
> Create Cpu Profile
> <https://urldefense.com/v3/__http://37.50.100.18:8080/admin/8/addcpuprofile/__;!!AjveYdw8EvQ!Km5xOEiy_wI3YAmney4OpHhqwjOOCiNhB37qanNSizdNpERIM_eDDRfwAzNuQoVun-HI$>
> Function
> Processor Logical Cores
> Platform *Processor 0 : *0,64
> vSwitch
> Shared
> Application *Processor 0 : *17-31,81-95
> *Processor 1 : *56-63,120-127
> Application-isolated *Processor 0 : *1-16,65-80
> *Processor 1 : *32-55,96-119
>
> On Tue, Dec 7, 2021 at 1:46 PM open infra <openinfradn at gmail.com> wrote:
>
> Hi Thiago,
>
> I have configured the worker as mentioned in the given link and dedicated
> cpu_policy set in the flavor.
> Instance creation failed with the following error.
>
> No valid host was found. There are not enough hosts available.
>
>
> controller-0:~$ openstack flavor show dn.large  -c properties
>
>
> +------------+--------------------------------------------------------------------------------------------------------+
>
> | Field      | Value
>                                             |
>
>
> +------------+--------------------------------------------------------------------------------------------------------+
>
> | properties | hw:cpu_cores='2', hw:cpu_policy='dedicated',
> hw:cpu_sockets='1', hw:cpu_threads='2', hw:numa_nodes='1' |
>
>
> +------------+--------------------------------------------------------------------------------------------------------+
>
>
> Regards,
>
> Danishka
>
> On Tue, Dec 7, 2021 at 1:18 AM Brito, Thiago <Thiago.Brito at windriver.com>
> wrote:
>
> Hi Danishka,
>
> Whatever you configure on the platform as Application-isolated core for a
> node will get to cpu_dedicated_set on stx-openstack. Please check this doc:
> https://docs.starlingx.io/r/stx.5.0/admintasks/openstack/configure-dedicated-and-shared-cpu-pools-on-hosts.html
> <https://urldefense.com/v3/__https://docs.starlingx.io/r/stx.5.0/admintasks/openstack/configure-dedicated-and-shared-cpu-pools-on-hosts.html__;!!AjveYdw8EvQ!Km5xOEiy_wI3YAmney4OpHhqwjOOCiNhB37qanNSizdNpERIM_eDDRfwAzNuQv9j-Hlr$>
>
> Thiago
> ------------------------------
> *From:* open infra <openinfradn at gmail.com>
> *Sent:* Monday, December 6, 2021 3:15 PM
> *To:* starlingx-discuss at lists.starlingx.io <
> starlingx-discuss at lists.starlingx.io>
> *Subject:* [Starlingx-discuss] How to enable cpu_dedicated_set
>
>
> [Please note: This e-mail is from an EXTERNAL e-mail address]
> Hi,
>
> Is the cpu_dedicated_set is already enabled in stx based openstack?
> How to verify and enable it?
>
> Regards,
> Danishka
>
>
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