Golang framework.HighLatencyRequests函数代码示例

	AfterEach(func() {
		saturationThreshold := time.Duration((totalPods / MinPodsPerSecondThroughput)) * time.Second
		if saturationThreshold < MinSaturationThreshold {
			saturationThreshold = MinSaturationThreshold
		}
		Expect(e2eStartupTime).NotTo(BeNumerically(">", saturationThreshold))
		saturationData := framework.SaturationTime{
			TimeToSaturate: e2eStartupTime,
			NumberOfNodes:  nodeCount,
			NumberOfPods:   totalPods,
			Throughput:     float32(totalPods) / float32(e2eStartupTime/time.Second),
		}
		framework.Logf("Cluster saturation time: %s", framework.PrettyPrintJSON(saturationData))

		// Verify latency metrics.
		highLatencyRequests, err := framework.HighLatencyRequests(c)
		framework.ExpectNoError(err)
		Expect(highLatencyRequests).NotTo(BeNumerically(">", 0), "There should be no high-latency requests")

		// Verify scheduler metrics.
		// TODO: Reset metrics at the beginning of the test.
		// We should do something similar to how we do it for APIserver.
		framework.ExpectNoError(framework.VerifySchedulerLatency(c))
	})

	// Explicitly put here, to delete namespace at the end of the test
	// (after measuring latency metrics, etc.).
	f := framework.NewDefaultFramework("density")
	f.NamespaceDeletionTimeout = time.Hour

	BeforeEach(func() {

// This test suite can take a long time to run, so by default it is added to
// the ginkgo.skip list (see driver.go).
// To run this suite you must explicitly ask for it by setting the
// -t/--test flag or ginkgo.focus flag.
var _ = framework.KubeDescribe("Load capacity", func() {
	var clientset internalclientset.Interface
	var nodeCount int
	var ns string
	var configs []*testutils.RCConfig
	var namespaces []*api.Namespace

	// Gathers metrics before teardown
	// TODO add flag that allows to skip cleanup on failure
	AfterEach(func() {
		// Verify latency metrics
		highLatencyRequests, err := framework.HighLatencyRequests(clientset)
		framework.ExpectNoError(err, "Too many instances metrics above the threshold")
		Expect(highLatencyRequests).NotTo(BeNumerically(">", 0))
	})

	// We assume a default throughput of 10 pods/second throughput.
	// We may want to revisit it in the future.
	// However, this can be overriden by LOAD_TEST_THROUGHPUT env var.
	throughput := 10
	if throughputEnv := os.Getenv("LOAD_TEST_THROUGHPUT"); throughputEnv != "" {
		if newThroughput, err := strconv.Atoi(throughputEnv); err == nil {
			throughput = newThroughput
		}
	}

	// Explicitly put here, to delete namespace at the end of the test