diff --git a/main.go b/main.go
index 7f42fd7..d7987c0 100644
--- a/main.go
+++ b/main.go
@@ -112,8 +112,6 @@ func main() {
 		defer p.Stop()
 	}
 
-	utils.AdjustBufSize()
-
 	ll_beforeLoadConfigFile := utils.LogLevel
 	usereadv_beforeLoadConfigFile := netLayer.UseReadv
 
diff --git a/utils/pool.go b/utils/pool.go
index fbf4303..8dee7e6 100644
--- a/utils/pool.go
+++ b/utils/pool.go
@@ -2,7 +2,6 @@ package utils
 
 import (
 	"bytes"
-	"flag"
 	"sync"
 )
 
@@ -25,12 +24,9 @@ const StandardBytesLength int = 1500
 // https://en.wikipedia.org/wiki/Maximum_transmission_unit
 
 //本作设定的最大buf大小，64k
-var MaxBufLen = DefaultMaxBufLen
-
-const DefaultMaxBufLen = 64 * 1024
+const MaxBufLen = 64 * 1024
 
 func init() {
-	flag.IntVar(&MaxBufLen, "bl", DefaultMaxBufLen, "buf len")
 
 	standardBytesPool = sync.Pool{
 		New: func() interface{} {
@@ -51,15 +47,6 @@ func init() {
 	}
 }
 
-//给了参数调节buf大小后,需要更新pool
-func AdjustBufSize() {
-	standardPacketPool = sync.Pool{
-		New: func() interface{} {
-			return make([]byte, MaxBufLen)
-		},
-	}
-}
-
 //从Pool中获取一个 *bytes.Buffer
 func GetBuf() *bytes.Buffer {
 	return bufPool.Get().(*bytes.Buffer)