add a test case with PodAffinity gated pods to scheduler_perf

test/integration/scheduler_perf/config/performance-config.yaml

@@ -1075,3 +1075,29 @@
       gatedPods: 10000
       deletingPods: 20000
       measurePods: 20000
+
+- name: SchedulingGatedPodsWithPodAffinityImpactForThroughput
+  defaultPodTemplatePath: config/templates/pod-with-label.yaml
+  workloadTemplate:
+  - opcode: createNodes
+    count: 1
+    nodeTemplatePath: config/templates/node-with-name.yaml
+  - opcode: createPods
+    countParam: $gatedPods
+    podTemplatePath: config/templates/gated-pod-with-pod-affinity.yaml
+    skipWaitToCompletion: true
+  - opcode: sleep
+    # To produce a stable scheduler_perf result, here we make sure all gated Pods are stored in the scheduling queue.
+    duration: 5s
+  - opcode: createPods
+    # The scheduling of those Pods will result in many cluster events (AssignedPodAdded)
+    # and each of them will be processed by the scheduling queue.
+    # But, the scheduling throughput should only be minimally impacted by the number of gated Pods.
+    countParam: $measurePods
+    collectMetrics: true
+  workloads:
+  - name: 1000Node
+    labels: [performance, fast]
+    params:
+      gatedPods: 10000
+      measurePods: 20000

test/integration/scheduler_perf/config/templates/gated-pod-with-pod-affinity.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  generateName: pod-
+  labels:
+    app: scheduler-perf
+spec:
+  affinity:
+    podAffinity:
+      requiredDuringSchedulingIgnoredDuringExecution:
+      - labelSelector:
+          matchLabels:
+            app: scheduler-perf
+        topologyKey: kubernetes.io/hostname
+  schedulingGates:
+  - name: "scheduling-gate-1"
+  containers:
+  - image: registry.k8s.io/pause:3.10
+    name: pause

test/integration/scheduler_perf/config/templates/node-with-name.yaml

@@ -2,6 +2,8 @@ apiVersion: v1
 kind: Node
 metadata:
   name: scheduler-perf-node
+  labels:
+    kubernetes.io/hostname: scheduler-perf-node
 spec: {}
 status:
   capacity:

test/integration/scheduler_perf/config/templates/pod-with-label.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  generateName: pod-
+  labels:
+    app: scheduler-perf
+spec:
+  containers:
+  - image: registry.k8s.io/pause:3.10
+    name: pause