向网络发送数据时的耗时，是 CPU 频率决定还是网卡的性能？

Golang

con, _:= net.DialUDP("udp", &net.UDPAddr{IP: nil, Port: 19986}, &net.UDPAddr{IP: net.ParseIP("3.3.3.3"), Port: 19986})


for i := 0; i < 200; i++ {
	a := time.Now()
	if _, err = con.Write([]byte("sadfsas")); err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println("耗时", time.Since(a))
}