Added Preemption benchmark

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

@@ -227,3 +227,16 @@
   - numNodes: 5000
     numInitPods: [2000, 2000, 2000, 2000, 2000]
     numPodsToSchedule: 1000
+- template:
+    desc: Preemption
+    initPods:
+    - podTemplatePath: config/pod-low-priority.yaml
+    podsToSchedule:
+      podTemplatePath: config/pod-high-priority.yaml
+  params:
+  - numNodes: 500
+    numInitPods: [2000]
+    numPodsToSchedule: 500
+  - numNodes: 5000
+    numInitPods: [20000]
+    numPodsToSchedule: 5000

test/integration/scheduler_perf/config/pod-high-priority.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  generateName: pod-
+spec:
+  priority: 10
+  containers:
+  - image: k8s.gcr.io/pause:3.2
+    name: pause
+    ports:
+    - containerPort: 80
+    resources:
+      limits:
+        cpu: 3000m
+        memory: 500Mi
+      requests:
+        cpu: 3000m
+        memory: 500Mi

test/integration/scheduler_perf/config/pod-low-priority.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  generateName: pod-
+spec:
+  terminationGracePeriodSeconds: 0
+  containers:
+  - image: k8s.gcr.io/pause:3.2
+    name: pause
+    ports:
+    - containerPort: 80
+    resources:
+      limits:
+        cpu: 900m
+        memory: 500Mi
+      requests:
+        cpu: 900m
+        memory: 500Mi