diff --git a/cmd/ledis-benchmark/main.go b/cmd/ledis-benchmark/main.go
index dad16f2..8f7d65d 100644
--- a/cmd/ledis-benchmark/main.go
+++ b/cmd/ledis-benchmark/main.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"github.com/siddontang/ledisdb/client/go/ledis"
 	"math/rand"
+	"runtime"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -246,6 +247,8 @@ func benchZRevRangeByRank() {
 }
 
 func main() {
+	runtime.GOMAXPROCS(runtime.NumCPU())
+
 	flag.Parse()
 
 	if *number <= 0 {
diff --git a/server/client_resp.go b/server/client_resp.go
index 93edef9..cd5bee3 100644
--- a/server/client_resp.go
+++ b/server/client_resp.go
@@ -33,7 +33,7 @@ func newClientRESP(conn net.Conn, app *App) {
 	c.client = newClient(app)
 	c.conn = conn
 
-	c.rb = bufio.NewReaderSize(conn, 256)
+	c.rb = bufio.NewReaderSize(conn, 4096)
 
 	c.resp = newWriterRESP(conn)
 	c.remoteAddr = conn.RemoteAddr().String()