socket 编程 linux系统相关参数配置

格林-scorpio

于 2013-06-08 23:04:21 发布

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本文链接：https://blog.youkuaiyun.com/pengwupeng2008/article/details/9060081

本文详细介绍了如何调整Linux内核参数，包括内存最大接收缓冲区大小、TCP参数、网络队列等，以优化网络性能。通过设置net.core.rmem_max和net.ipv4.tcp_rmem来增加接收缓冲区大小，提高数据包处理效率；同时启用net.ipv4.tcp_tw_recycle和net.ipv4.tcp_tw_reuse来加速TCP连接释放，减少资源占用。

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/etc/sysctl.conf

net.core.rmem_max = 33554432

net.core.wmem_max = 33554432
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.core.netdev_max_backlog = 3000
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 60
net.ipv4.tcp_max_syn_backlog = 8192

net.ipv4.tcp_orphan_retries = 4
net.ipv4.tcp_max_orphans = 8192
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_dsack = 1
net.ipv4.tcp_keepalive_intvl = 15
net.ipv4.tcp_keepalive_probes = 5