linux 内核参数修改

net.core.netdev_max_backlog = 65535
net.core.somaxconn = 65535
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.ip_local_port_range = 15000 65000
net.ipv4.tcp_max_syn_backlog = 3240000
net.ipv4.tcp_rmem = 10240 87380 12582912
net.ipv4.tcp_wmem = 10240 87380 12582912
net.ipv4.tcp_mem  = 12582912 12582912 12582912
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse   = 1
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_fin_timeout  = 2
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_max_tw_buckets = 10240
net.ipv4.tcp_congestion_control = cubic
net.ipv4.ip_forward = 1
net.netfilter.nf_conntrack_max=200000
net.netfilter.nf_conntrack_tcp_timeout_time_wait=2
vm.swappiness=10