diff --git a/internal/pool.go b/internal/pool.go
index 2118eca..7d4e5bd 100644
--- a/internal/pool.go
+++ b/internal/pool.go
@@ -58,13 +58,13 @@ func NewPool(ctx context.Context, config *pkg.Config, outputCh chan *baseline) (
 
 		var bl *baseline
 		resp, reqerr := pool.client.Do(pctx, req)
+		defer fasthttp.ReleaseResponse(resp)
+		defer fasthttp.ReleaseRequest(req)
 		if reqerr != nil && reqerr != fasthttp.ErrBodyTooLarge {
 			//logs.Log.Debugf("%s request error, %s", strurl, err.Error())
 			pool.errorCount++
 			bl = &baseline{UrlString: pool.BaseURL + unit.path, Err: reqerr}
 		} else {
-			defer fasthttp.ReleaseResponse(resp)
-			defer fasthttp.ReleaseRequest(req)
 			//defer resp.Body.Close() // 必须要关闭body ,否则keep-alive无法生效
 			if err = pool.PreCompare(resp); err == nil || unit.source == CheckSource {
 				// 通过预对比跳过一些无用数据, 减少性能消耗
diff --git a/pkg/client.go b/pkg/client.go
index dd60e6e..2bdc742 100644
--- a/pkg/client.go
+++ b/pkg/client.go
@@ -13,16 +13,6 @@ var (
 )
 
 func NewClient(thread int, timeout int) *Client {
-	//tr := &http.Transport{
-	//	//Proxy: Proxy,
-	//	//TLSHandshakeTimeout : delay * time.Second,
-	//	TLSClientConfig: &tls.Config{
-	//		Renegotiation:      tls.RenegotiateOnceAsClient,
-	//		InsecureSkipVerify: true,
-	//	},
-	//	MaxConnsPerHost: thread,
-	//	IdleConnTimeout: time.Duration(timeout) * time.Second,
-	//}
 	c := &Client{
 		client: &fasthttp.Client{
 			TLSConfig: &tls.Config{
@@ -30,7 +20,7 @@ func NewClient(thread int, timeout int) *Client {
 				InsecureSkipVerify: true,
 			},
 			//ReadBufferSize:      20480,
-			MaxConnsPerHost:     thread,
+			MaxConnsPerHost:     thread * 2,
 			MaxIdleConnDuration: time.Duration(timeout) * time.Second,
 			MaxConnWaitTimeout:  time.Duration(timeout) * time.Second,
 			ReadTimeout:         time.Duration(timeout) * time.Second,