linux tcp 窗口设置

# 查看当前TCP窗口大小
sysctl net.ipv4.tcp_window_scaling

# 设置TCP窗口大小（例如设置为65535）
echo 65535 > /proc/sys/net/ipv4/tcp_window_scaling

# 启用TCP慢启动
sysctl -w net.ipv4.tcp_slow_start_after_idle=1

# 调整拥塞控制算法（例如使用CUBIC算法）
echo cubic > /proc/sys/net/ipv4/tcp_congestion_control

# 增加接收缓冲区大小
sysctl -w net.core.rmem_max=262144

# 增加发送缓冲区大小
sysctl -w net.core.wmem_max=262144

import socket

# 创建一个TCP/IP套接字
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 设置发送缓冲区大小（单位字节）
sock.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 65535)

# 设置接收缓冲区大小（单位字节）
sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 65535)

# 连接到服务器
server_address = ('localhost', 10000)
sock.connect(server_address)

try:
    # 发送数据
    message = b'This is the message.  It will be sent in chunks.'
    while message:
        sent = sock.send(message)
        message = message[sent:]

    # 接收响应
    data = sock.recv(1024)
    print('Received:', data.decode())
finally:
    sock.close()