Cilium vs Calico vs Flannel: wrong CNI adds 12ms latency

Cilium 1.17, Calico 3.29 and Flannel 0.25 tested on 500-node Kubernetes clusters reveal critical latency differences.

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The fact

Choosing right CNI can eliminate 12 milliseconds network latency per packet, decisive for real-time applications.

These benchmarks guide Kubernetes architects toward documented network optimization decisions.

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Réduction potentielle de 12 ms de latence réseau par choix approprié de CNI Kubernetes

Auto-synthesis from 1 media source · identified on April 28, 2026