diff --git a/.gitignore b/.gitignore
index 7aebfc0..342c536 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,7 +19,4 @@ bin/
 # vendor/
 
 # Go workspace file
-go.work
-
-temp/
-cmd/kperf/commands/virtualcluster
\ No newline at end of file
+go.work
\ No newline at end of file
diff --git a/api/types/load_traffic.go b/api/types/load_traffic.go
index 4abf8e8..628d6aa 100644
--- a/api/types/load_traffic.go
+++ b/api/types/load_traffic.go
@@ -20,6 +20,8 @@ type LoadProfileSpec struct {
 	Total int `json:"total" yaml:"total"`
 	// Conns defines total number of long connections used for traffic.
 	Conns int `json:"conns" yaml:"conns"`
+	// Client defines total number of HTTP clients.
+	Client int `json:"client" yaml:"client"`
 	// Requests defines the different kinds of requests with weights.
 	// The executor should randomly pick by weight.
 	Requests []*WeightedRequest
diff --git a/cmd/kperf/commands/runner/runner.go b/cmd/kperf/commands/runner/runner.go
index 00f741d..a675f1c 100644
--- a/cmd/kperf/commands/runner/runner.go
+++ b/cmd/kperf/commands/runner/runner.go
@@ -76,13 +76,12 @@ var runCommand = cli.Command{
 		userAgent := cliCtx.String("user-agent")
 
 		conns := profileCfg.Spec.Conns
-		client := profileCfg.Spec.Conns
 		rate := profileCfg.Spec.Rate
 		restClis, err := request.NewClients(kubeCfgPath, conns, userAgent, rate, contentType)
 		if err != nil {
 			return err
 		}
-		stats, err := request.Schedule(context.TODO(), client, &profileCfg.Spec, restClis)
+		stats, err := request.Schedule(context.TODO(), &profileCfg.Spec, restClis)
 
 		if err != nil {
 			return err
@@ -114,6 +113,9 @@ func loadConfig(cliCtx *cli.Context) (*types.LoadProfile, error) {
 	if v := "conns"; cliCtx.IsSet(v) || profileCfg.Spec.Conns == 0 {
 		profileCfg.Spec.Conns = cliCtx.Int(v)
 	}
+	if v := "client"; cliCtx.IsSet(v) || profileCfg.Spec.Client == 0 {
+		profileCfg.Spec.Client = cliCtx.Int(v)
+	}
 	if v := "total"; cliCtx.IsSet(v) || profileCfg.Spec.Total == 0 {
 		profileCfg.Spec.Total = cliCtx.Int(v)
 	}
diff --git a/request/client.go b/request/client.go
index cab0618..54218ff 100644
--- a/request/client.go
+++ b/request/client.go
@@ -13,12 +13,9 @@ import (
 //
 // FIXME(weifu):
 //
-// 1. Is it possible to build one http2 client with multiple connections?
 // 2. How to monitor HTTP2 GOAWAY frame?
-// 3. Support Protobuf as accepted content
 func NewClients(kubeCfgPath string, ConnsNum int, userAgent string, qps int, contentType string) ([]rest.Interface, error) {
 	restCfg, err := clientcmd.BuildConfigFromFlags("", kubeCfgPath)
-
 	if err != nil {
 		return nil, err
 	}
@@ -26,12 +23,10 @@ func NewClients(kubeCfgPath string, ConnsNum int, userAgent string, qps int, con
 	if qps == 0 {
 		qps = math.MaxInt32
 	}
-
 	restCfg.QPS = float32(qps)
 	restCfg.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
 
 	restCfg.UserAgent = userAgent
-
 	if restCfg.UserAgent == "" {
 		restCfg.UserAgent = rest.DefaultKubernetesUserAgent()
 	}
@@ -52,7 +47,6 @@ func NewClients(kubeCfgPath string, ConnsNum int, userAgent string, qps int, con
 
 		restCli, err := rest.UnversionedRESTClientFor(&cfgShallowCopy)
 		if err != nil {
-			fmt.Printf("Failed to create rest client: %v\n", err)
 			return nil, err
 		}
 		restClients = append(restClients, restCli)
diff --git a/request/schedule.go b/request/schedule.go
index c94e307..f73b773 100644
--- a/request/schedule.go
+++ b/request/schedule.go
@@ -17,7 +17,7 @@ import (
 const defaultTimeout = 60 * time.Second
 
 // Schedule files requests to apiserver based on LoadProfileSpec.
-func Schedule(ctx context.Context, clientNum int, spec *types.LoadProfileSpec, restCli []rest.Interface) (*types.ResponseStats, error) {
+func Schedule(ctx context.Context, spec *types.LoadProfileSpec, restCli []rest.Interface) (*types.ResponseStats, error) {
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
@@ -36,8 +36,8 @@ func Schedule(ctx context.Context, clientNum int, spec *types.LoadProfileSpec, r
 	var wg sync.WaitGroup
 
 	respMetric := metrics.NewResponseMetric()
-	for i := 0; i < clientNum; i++ {
-		//reuse connection if client > conns
+	for i := 0; i < spec.Client; i++ {
+		// reuse connection if clients > conns
 		cli := restCli[i%len(restCli)]
 		wg.Add(1)
 		go func(cli rest.Interface) {