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articles/aks/istio-scale.md

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@@ -21,7 +21,6 @@ The Istio-based service mesh add-on is logically split into a control plane (`is
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- Horizontal pod autoscaling disabled
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- Tested with two network plugins: Azure CNI Overlay and Azure CNI Overlay with Cilium [ (recommended network plugins for large scale clusters) ](/azure/aks/azure-cni-overlay?tabs=kubectl#choosing-a-network-model-to-use)
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- Node SKU: Standard D16 v3 (16 vCPU, 64-GB memory)
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- 500 nodes
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- Kubernetes version: 1.28.5
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### Pod churn
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|**Azure CNI Overlay**| | | | |
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|-------------|-----------------------------|--------------------|----------------------|--------------|
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| Churn (%) | Churn Rate (sidecars/sec) | Sidecar Capacity | Istiod Memory (GB) | Istiod CPU |
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| 0 |-- | 35000 | 47.8 | 15 |
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| 25 | 41.7 | 25000 | 37.2 | 16 |
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| 50 | 52.1 | 25000 | 39.8 | 16 |
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| 0 | -- | 25000 | 32.1 | 15 |
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| 25 | 31.2 | 15000 | 22.2 | 15 |
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| 50 | 31.2 | 15000 | 25.4 | 15 |
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|**Azure CNI Overlay with Cilium**|||||
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|-------------|-----------------------------|--------------------|----------------------|--------------|
@@ -53,12 +52,12 @@ The [ClusterLoader2 framework][clusterloader2] was used to determine the maximum
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| 20000 | 20000 |
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|**CPU and Memory**|||
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|------------------------|---------------------|---------------------------------|
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| Resource | Azure CNI Overlay | Azure CNI Overlay with Cilium |
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| API Server Memory (GB) | 7 | 9.7 |
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| API Server CPU | 4.3 | 4.7 |
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| Istiod Memory (GB) | 43.1 | 42.6 |
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| Istiod CPU | 16 | 16 |
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|------------------------|--------------------|---------------------------------|
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| Resource | Azure CNI Overlay | Azure CNI Overlay with Cilium |
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| API Server Memory (GB) | 38.9 | 9.7 |
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| API Server CPU | 6.1 | 4.7 |
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| Istiod Memory (GB) | 40.4 | 42.6 |
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| Istiod CPU | 15 | 16 |
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## Data Plane Performance
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#### Test Specifications
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- Tested with two network plugins: Azure CNI Overlay and Azure CNI Overlay with Cilium [ (recommended network plugins for large scale clusters) ](/azure/aks/azure-cni-overlay?tabs=kubectl#choosing-a-network-model-to-use)
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- Node SKU: Standard D16 v5 (16 vCPU, 64-GB memory)
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- 25 nodes
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- Kubernetes version: 1.28.5
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- Two proxy workers
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