diff --git a/cmd/server/app/service/machine/machinemanager.go b/cmd/server/app/service/machine/machinemanager.go
index 4d207a1a660c3fe6a8aeeebf7860c88680fb5a36..23527ed0195da0ee619ede7970ca272a0714be61 100644
--- a/cmd/server/app/service/machine/machinemanager.go
+++ b/cmd/server/app/service/machine/machinemanager.go
@@ -55,7 +55,8 @@ func MachineAllData() ([]map[string]string, error) {
 	if err != nil {
 		return nil, err
 	}
-	datas := make([]map[string]string, 0)
+	// 预先分配足够的容量给datas切片
+	datas := make([]map[string]string, 0, len(AllData))
 	for _, data := range AllData {
 		datas = append(datas, map[string]string{"uuid": data.UUID, "ip_dept": data.IP + "-" + data.Departname, "ip": data.IP})
 	}