On Wed, Dec 8, 2021 at 3:16 AM Brito, Thiago <Thiago.Brito@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@gmail.com>
Sent: Tuesday, December 7, 2021 5:45 AM
To: Brito, Thiago <Thiago.Brito@windriver.com>
Cc: starlingx-discuss@lists.starlingx.io <starlingx-discuss@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
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@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@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

Thiago
From: open infra <openinfradn@gmail.com>
Sent: Monday, December 6, 2021 3:15 PM
To: starlingx-discuss@lists.starlingx.io <starlingx-discuss@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