diff --git a/k8s/post-setup.sh b/k8s/post-setup.sh
index a16a82a..8281b59 100644
--- a/k8s/post-setup.sh
+++ b/k8s/post-setup.sh
@@ -66,10 +66,20 @@ echo "    export KUBECONFIG=$KUBECONFIG_FILE"
 echo "    kubectl get nodes"
 
 # -------------------------------------------------------
-# 3. Verify cluster health
+# 3. Deploy tuned (network-latency profile) on all cnodes
 # -------------------------------------------------------
 echo ""
-echo "--- [3/3] Verifying cluster health ---"
+echo "--- [3/4] Deploying tuned (network-latency) on cnodes ---"
+for ip in "${ALL_CNODES[@]}"; do
+  echo "  $ip..."
+  cn "$ip" 'DEBIAN_FRONTEND=noninteractive apt-get update -qq 2>/dev/null; DEBIAN_FRONTEND=noninteractive apt-get install -y -qq tuned 2>/dev/null; tuned-adm profile network-latency; systemctl enable tuned; systemctl restart tuned; tuned-adm active' 2>&1 | tail -1
+done
+
+# -------------------------------------------------------
+# 4. Verify cluster health
+# -------------------------------------------------------
+echo ""
+echo "--- [4/4] Verifying cluster health ---"
 
 export KUBECONFIG="$KUBECONFIG_FILE"