component tests as integration-tests with short option.

test/integration/scheduler_perf/scheduler_test.go

@@ -0,0 +1,67 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package benchmark
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+// TestSchedule100Node3KPods schedules 3k pods on 100 nodes.
+func TestSchedule100Node3KPods(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping because we want to run short tests")
+	}
+	schedulePods(100, 3000)
+}
+
+// TestSchedule1000Node30KPods schedules 30k pods on 1000 nodes.
+func TestSchedule1000Node30KPods(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping because we want to run short tests")
+	}
+	schedulePods(1000, 30000)
+}
+
+// schedulePods schedules specific number of pods on specific number of nodes.
+// This is used to learn the scheduling throughput on various
+// sizes of cluster and changes as more and more pods are scheduled.
+// It won't stop until all pods are scheduled.
+func schedulePods(numNodes, numPods int) {
+	schedulerConfigFactory, destroyFunc := mustSetupScheduler()
+	defer destroyFunc()
+	c := schedulerConfigFactory.Client
+
+	makeNodes(c, numNodes)
+	makePodsFromRC(c, "rc1", numPods)
+
+	prev := 0
+	start := time.Now()
+	for {
+		// This can potentially affect performance of scheduler, since List() is done under mutex.
+		// Listing 10000 pods is an expensive operation, so running it frequently may impact scheduler.
+		// TODO: Setup watch on apiserver and wait until all pods scheduled.
+		scheduled := schedulerConfigFactory.ScheduledPodLister.Indexer.List()
+		fmt.Printf("%ds\trate: %d\ttotal: %d\n", time.Since(start)/time.Second, len(scheduled)-prev, len(scheduled))
+		if len(scheduled) >= numPods {
+			return
+		}
+		prev = len(scheduled)
+		time.Sleep(1 * time.Second)
+	}
+}