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d51917ed74
Changes for Martin Martin's 3rd review comments Martin's 4th review Final comments from Martin More updates for Martin Tweaks for Martin Martin's comments 22-Apr - workload pods Apr 30 review comments final review comments Michael's comments
33 lines
1.9 KiB
Plaintext
33 lines
1.9 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * scalability_and_performance/low_latency_tuning/cnf-provisioning-low-latency-workloads.adoc
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// * scalability_and_performance/low_latency_tuning/cnf-tuning-low-latency-nodes-with-perf-profile.adoc
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[id="nto_supported_api_versions_{context}"]
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= Supported performance profile API versions
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The Node Tuning Operator supports `v2`, `v1`, and `v1alpha1` for the performance profile `apiVersion` field. The v1 and v1alpha1 APIs are identical. The v2 API includes an optional boolean field `globallyDisableIrqLoadBalancing` with a default value of `false`.
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[discrete]
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[id="use-device-interrupt-processing-for-isolated-cpus_{context}"]
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== Upgrading the performance profile to use device interrupt processing
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When you upgrade the Node Tuning Operator performance profile custom resource definition (CRD) from v1 or v1alpha1 to v2, `globallyDisableIrqLoadBalancing` is set to `true` on existing profiles.
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[NOTE]
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====
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`globallyDisableIrqLoadBalancing` toggles whether IRQ load balancing will be disabled for the Isolated CPU set. When the option is set to `true` it disables IRQ load balancing for the Isolated CPU set. Setting the option to `false` allows the IRQs to be balanced across all CPUs.
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====
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[discrete]
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[id="upgrading_nto_api_from_v1alpha1_to_v1_{context}"]
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=== Upgrading Node Tuning Operator API from v1alpha1 to v1
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When upgrading Node Tuning Operator API version from v1alpha1 to v1, the v1alpha1 performance profiles are converted on-the-fly using a "None" Conversion strategy and served to the Node Tuning Operator with API version v1.
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[discrete]
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[id="upgrading_nto_api_from_v1alpha1_to_v1_or_v2_{context}"]
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=== Upgrading Node Tuning Operator API from v1alpha1 or v1 to v2
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When upgrading from an older Node Tuning Operator API version, the existing v1 and v1alpha1 performance profiles are converted using a conversion webhook that injects the `globallyDisableIrqLoadBalancing` field with a value of `true`.
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