Enable timer_migration=1 for all use cases until OCPBUGS-86541 fix

telco-core/configuration/reference-crs-kube-compare/required/performance/TunedPerformancePatch.yaml

@@ -10,8 +10,22 @@ spec:
       #   include=openshift-node-performance-${PerformanceProfile.metadata.name}
 {{- range .spec.profile }}
     - name: {{ .name }}
+{{- if contains "include=openshift-node-performance" .data }}
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
+      data: |
+        [main]
+        {{ .data | regexFind "summary=.*" }}
+        include=openshift-node-performance-{{ .name }}
+        [sysctl]
+        kernel.panic_on_unrecovered_nmi=1
+        kernel.timer_migration=1
+{{- else }}
       data: |
 {{- .data | nindent 8 }}
+{{- end }}
 {{- end }}
   recommend:
 {{- range .spec.recommend }}

telco-core/configuration/reference-crs/required/performance/TunedPerformancePatch.yaml

@@ -14,26 +14,41 @@ spec:
         [main]
         summary=Top-level core performance tuning overrides
     - name: worker-profile-1
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
       data: |
         [main]
         summary=Worker-1 core performance tuning overrides
         include=openshift-node-performance-worker-profile-1
         [sysctl]
         kernel.panic_on_unrecovered_nmi=1
+        kernel.timer_migration=1
     - name: worker-profile-2
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
       data: |
         [main]
         summary=Worker-2 core performance tuning overrides
         include=openshift-node-performance-worker-profile-2
         [sysctl]
         kernel.panic_on_unrecovered_nmi=1
+        kernel.timer_migration=1
     - name: worker-profile-3
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
       data: |
         [main]
         summary=Worker-3 core performance tuning overrides
         include=openshift-node-performance-worker-profile-3
         [sysctl]
         kernel.panic_on_unrecovered_nmi=1
+        kernel.timer_migration=1
   recommend:
     - machineConfigLabels:
         machineconfiguration.openshift.io/role: $mcp

telco-ran/configuration/kube-compare-reference/node-tuning-operator/TunedPerformancePatch.yaml

@@ -16,6 +16,10 @@ spec:
         summary=Top-level ran-du performance tuning overrides
         include=openshift-node-performance-openshift-node-performance-profile,ran-du-performance-architecture-common
     - name: ran-du-performance-architecture-common
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
       data: |
         [main]
         summary=Common cross-architecture performance tuning which also includes architecture-specific profiles
@@ -26,6 +30,8 @@ spec:
         [bootloader]
         cmdline_ran_rcu=rcupdate.rcu_normal_after_boot=0
         cmdline_ran_efi=efi=runtime
+        [sysctl]
+        kernel.timer_migration=1
     - name: ran-du-common-aarch64
       data: |
         [main]

telco-ran/configuration/source-crs/node-tuning-operator/TunedPerformancePatch.yaml

@@ -16,6 +16,10 @@ spec:
         summary=Top-level ran-du performance tuning overrides
         include=openshift-node-performance-openshift-node-performance-profile,ran-du-performance-architecture-common
     - name: ran-du-performance-architecture-common
+      # Timer migration is enabled by this profile explicitly to workaround
+      # https://redhat.atlassian.net/browse/OCPBUGS-86541.
+      # Once the NTO patch https://github.com/openshift/cluster-node-tuning-operator/pull/1542
+      # is backported to 4.21 you can remove this override.
       data: |
         [main]
         summary=Common cross-architecture performance tuning which also includes architecture-specific profiles
@@ -26,6 +30,8 @@ spec:
         [bootloader]
         cmdline_ran_rcu=rcupdate.rcu_normal_after_boot=0
         cmdline_ran_efi=efi=runtime
+        [sysctl]
+        kernel.timer_migration=1
     - name: ran-du-common-aarch64
       data: |
         [main]