linux 网卡测试

# 检查网卡状态
ifconfig -a

# 检查驱动程序
lspci | grep -i network

# 检查网络延迟
ping example.com

# 检查网络路径
traceroute example.com

# 调整MTU设置
sudo ifconfig eth0 mtu 9000

import time
import socket

def test_network_speed(host="8.8.8.8", port=53, count=10):
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.settimeout(1)
    total_bytes = 0
    start_time = time.time()
    
    for _ in range(count):
        s.sendto(b"x" * 1472, (host, port))
        data, addr = s.recvfrom(1024)
        total_bytes += len(data)
    
    end_time = time.time()
    s.close()
    
    elapsed_time = end_time - start_time
    speed = (total_bytes * 8) / elapsed_time / 1000000  # Mbps
    
    print(f"Average speed: {speed:.2f} Mbps")

test_network_speed()