Hello, Regarding the question below: Is there way I can enable application-isolation across all the worker nodes including new nodes to be added in future? Application-isolated CPUs are configured on a per-host basis. When new nodes are added, they will need to be explicitly configured. Is there a specific use-case that you have where it would be beneficial for new nodes to automatically inherit the config of an existing node? There was an old capability where host profiles could be created and applied to new nodes. But this proved problematic as exact hardware matches were not guaranteed. As a result, this capability was abandoned a long time ago. Regards, Ghada From: open infra <openinfradn@gmail.com> Sent: Wednesday, September 28, 2022 3:32 AM To: Brito, Thiago <Thiago.Brito@windriver.com> Cc: 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] On Wed, Dec 8, 2021 at 3:16 AM Brito, Thiago <Thiago.Brito@windriver.com<mailto: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<mailto:openinfradn@gmail.com>> Sent: Tuesday, December 7, 2021 5:45 AM To: Brito, Thiago <Thiago.Brito@windriver.com<mailto:Thiago.Brito@windriver.com>> Cc: starlingx-discuss@lists.starlingx.io<mailto:starlingx-discuss@lists.starlingx.io> <starlingx-discuss@lists.starlingx.io<mailto: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 Create Cpu Profile<https://urldefense.com/v3/__http:/37.50.100.18:8080/admin/8/addcpuprofile/__;!!AjveYdw8EvQ!Km5xOEiy_wI3YAmney4OpHhqwjOOCiNhB37qanNSizdNpERIM_eDDRfwAzNuQoVun-HI$> Function Processor Logical Cores Platform Processor 0 : 0,64 vSwitch Shared Application Processor 0 : 17-31,81-95 Processor 1 : 56-63,120-127 Application-isolated Processor 0 : 1-16,65-80 Processor 1 : 32-55,96-119 On Tue, Dec 7, 2021 at 1:46 PM open infra <openinfradn@gmail.com<mailto:openinfradn@gmail.com>> wrote: Hi Thiago, I have configured the worker as mentioned in the given link and dedicated cpu_policy set in the flavor. Instance creation failed with the following error. No valid host was found. There are not enough hosts available. controller-0:~$ 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<mailto: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<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@gmail.com<mailto:openinfradn@gmail.com>> Sent: Monday, December 6, 2021 3:15 PM To: starlingx-discuss@lists.starlingx.io<mailto:starlingx-discuss@lists.starlingx.io> <starlingx-discuss@lists.starlingx.io<mailto: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