fix: use workqueue to speed up of volume binding tests

test/integration/volumescheduling/BUILD

@@ -32,6 +32,7 @@ go_test(
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
         "//staging/src/k8s.io/client-go/informers:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
+        "//staging/src/k8s.io/client-go/util/workqueue:go_default_library",
         "//staging/src/k8s.io/component-base/featuregate/testing:go_default_library",
         "//test/integration/framework:go_default_library",
         "//test/utils/image:go_default_library",

test/integration/volumescheduling/volume_binding_test.go

@@ -19,6 +19,7 @@ package volumescheduling
 // This file tests the VolumeScheduling feature.
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"strconv"
@@ -38,6 +39,7 @@ import (
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/util/workqueue"
 	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/kubernetes/pkg/controller/volume/persistentvolume"
 	persistentvolumeoptions "k8s.io/kubernetes/pkg/controller/volume/persistentvolume/options"
@@ -432,9 +434,10 @@ func testVolumeBindingStress(t *testing.T, schedulerResyncPeriod time.Duration,
 
 	klog.Infof("Start creating PVs and PVCs")
 	// Create enough PVs and PVCs for all the pods
-	pvs := []*v1.PersistentVolume{}
+	podVolumesCount := podLimit * volsPerPod
-	pvcs := []*v1.PersistentVolumeClaim{}
+	pvs := make([]*v1.PersistentVolume, podVolumesCount)
-	for i := 0; i < podLimit*volsPerPod; i++ {
+	pvcs := make([]*v1.PersistentVolumeClaim, podVolumesCount)
+	workqueue.ParallelizeUntil(context.TODO(), 16, podVolumesCount, func(i int) {
 		var (
 			pv      *v1.PersistentVolume
 			pvc     *v1.PersistentVolumeClaim
@@ -453,7 +456,7 @@ func testVolumeBindingStress(t *testing.T, schedulerResyncPeriod time.Duration,
 			if pv, err := config.client.CoreV1().PersistentVolumes().Create(pv); err != nil {
 				t.Fatalf("Failed to create PersistentVolume %q: %v", pv.Name, err)
 			}
-			pvs = append(pvs, pv)
+			pvs[i] = pv
 		}
 		if pv != nil && pv.Spec.ClaimRef != nil && pv.Spec.ClaimRef.Name == pvcName {
 			pvc = makePVC(pvcName, config.ns, &classImmediate, pv.Name)
@@ -463,12 +466,12 @@ func testVolumeBindingStress(t *testing.T, schedulerResyncPeriod time.Duration,
 		if pvc, err := config.client.CoreV1().PersistentVolumeClaims(config.ns).Create(pvc); err != nil {
 			t.Fatalf("Failed to create PersistentVolumeClaim %q: %v", pvc.Name, err)
 		}
-		pvcs = append(pvcs, pvc)
+		pvcs[i] = pvc
-	}
+	})
 
 	klog.Infof("Start creating Pods")
-	pods := []*v1.Pod{}
+	pods := make([]*v1.Pod, podLimit)
-	for i := 0; i < podLimit; i++ {
+	workqueue.ParallelizeUntil(context.TODO(), 16, podLimit, func(i int) {
 		// Generate string of all the PVCs for the pod
 		podPvcs := []string{}
 		for j := i * volsPerPod; j < (i+1)*volsPerPod; j++ {
@@ -479,27 +482,32 @@ func testVolumeBindingStress(t *testing.T, schedulerResyncPeriod time.Duration,
 		if pod, err := config.client.CoreV1().Pods(config.ns).Create(pod); err != nil {
 			t.Fatalf("Failed to create Pod %q: %v", pod.Name, err)
 		}
-		pods = append(pods, pod)
+		pods[i] = pod
-	}
+	})
 
 	klog.Infof("Start validating pod scheduled")
 	// Validate Pods scheduled
-	for _, pod := range pods {
+	workqueue.ParallelizeUntil(context.TODO(), 16, len(pods), func(i int) {
+		pod := pods[i]
 		// Use increased timeout for stress test because there is a higher chance of
 		// PV sync error
 		if err := waitForPodToScheduleWithTimeout(config.client, pod, 2*time.Minute); err != nil {
 			t.Errorf("Failed to schedule Pod %q: %v", pod.Name, err)
 		}
-	}
+	})
 
 	klog.Infof("Start validating PVCs scheduled")
 	// Validate PVC/PV binding
-	for _, pvc := range pvcs {
+	workqueue.ParallelizeUntil(context.TODO(), 16, len(pvcs), func(i int) {
-		validatePVCPhase(t, config.client, pvc.Name, config.ns, v1.ClaimBound, dynamic)
+		validatePVCPhase(t, config.client, pvcs[i].Name, config.ns, v1.ClaimBound, dynamic)
-	}
+	})
-	klog.Infof("Start validating PVs scheduled")
+
-	for _, pv := range pvs {
+	// Don't validate pv for dynamic provisioning test
-		validatePVPhase(t, config.client, pv.Name, v1.VolumeBound)
+	if !dynamic {
+		klog.Infof("Start validating PVs scheduled")
+		workqueue.ParallelizeUntil(context.TODO(), 16, len(pvs), func(i int) {
+			validatePVPhase(t, config.client, pvs[i].Name, v1.VolumeBound)
+		})
 	}
 }
 
@@ -921,6 +929,7 @@ func setupCluster(t *testing.T, nsName string, numberOfNodes int, resyncPeriod t
 		ns:     ns,
 		stop:   context.stopCh,
 		teardown: func() {
+			klog.Infof("test cluster %q start to tear down", ns)
 			deleteTestObjects(clientset, ns, nil)
 			cleanupTest(t, context)
 		},