千兆网络优化
直接上干货
Linux
1 net.ipv4.tcp_slow_start_after_idle = 0 2 net.ipv4.tcp_mem = 13107200 15728640 18350080 3 net.ipv4.tcp_rmem = 140000000 1700000000 2000000000 4 net.ipv4.tcp_wmem = 140000000 1700000000 2000000000 5 net.ipv4.tcp_ecn = 0 6 net.ipv4.tcp_ecn_fallback = 0 7 net.ipv4.tcp_max_syn_backlog = 20000 8 net.ipv4.tcp_max_tw_buckets = 50000 9 net.ipv4.tcp_adv_win_scale = 1 10 net.ipv4.tcp_mtu_probing = 0 11 net.ipv4.tcp_base_mss = 1460 12 net.ipv4.tcp_challenge_ack_limit = 1000 13 net.ipv4.tcp_invalid_ratelimit = 500 14 net.ipv4.tcp_sack = 1 15 net.ipv4.tcp_fack = 1 16 net.ipv4.ipfrag_high_thresh = 16777216 17 net.ipv4.ipfrag_low_thresh = 15728640 18 net.ipv4.tcp_timestamps = 0 19 net.ipv4.tcp_base_mss = 1460 20 net.core.rmem_max = 2000000000 21 net.core.wmem_max = 2000000000 22 net.core.rmem_default = 140000000 23 net.core.wmem_default = 140000000 24 net.core.somaxconn = 65535 25 net.core.netdev_max_backlog = 40000 26 net.core.optmem_max = 512000 27 vm.dirty_background_ratio = 2 28 vm.dirty_ratio = 4 29 vm.dirty_writeback_centisecs = 200 30 vm.dirty_expire_centisecs = 500
windows
Set-NetTCPSetting -SettingName "InternetCustom" -DelayedAckFrequency 2 Set-NetTCPSetting -SettingName "internetcustom" -DelayedAckTimeoutMs 20 Set-NetTCPSetting -SettingName "internetcustom" -CongestionProvider CTCP Set-NetTCPSetting -SettingName "InternetCustom" -InitialCongestionWindowMss 64 Set-NetTCPSetting -SettingName "InternetCustom" -MemoryPressureProtection disable Set-NetTCPSetting -SettingName "InternetCustom" -CwndRestart False Set-NetTCPSetting -SettingName "InternetCustom" -AutoTuningLevelLocal Experimental
netsh int ipv4 set dynamicportrange protocol=tcp start=1025 num=64511
netsh int ipv4 show dynamicportrange protocol=tcp
MTU 9000
windows 修改网卡mtu 先用如下命令查看所有的网卡以及他们的MTU的值。 netsh interface ipv4 show interfaces 使用如下的命令修改他们的MTU为9000. netsh interface ipv4 set subinterface "13" mtu=9000 store=persistent linux ifconfig ens192 mtu 9000 up 网卡配置文件新增MTU=9000 测试MTU大小 ping -f -l 1500 192.168.9.1 查看网卡性能 ethtool ens192 tcp网卡传输队列大小 ip link set txqueuelen 10000 dev ens192
