新增在文件尾部
net.core.wmem_max=12582912
net.core.rmem_max=12582912
net.ipv4.tcp_rmem= 10240 87380 12582912
net.ipv4.tcp_wmem= 10240 87380 12582912
net.ipv4.tcp_mem= 10240 87380 12582912
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_sack = 0
#net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_no_metrics_save = 1
net.core.netdev_max_backlog = 30000
net.core.somaxconn = 30000
net.ipv4.tcp_fin_timeout = 8
net.ipv4.tcp_keepalive_intvl = 20
#net.ipv4.tcp_keepalive_intvl = 11
net.ipv4.tcp_keepalive_probes = 5
net.ipv4.tcp_keepalive_time = 60
#net.ipv4.tcp_keepalive_time = 20
#net.ipv4.tcp_keepalive_time = 8
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 0
#net.ipv4.tcp_tw_recycle = 1
net.ipv4.ip_local_port_range = 32768 65535
net.ipv4.tcp_max_syn_backlog = 30000
net.ipv4.tcp_max_tw_buckets = 30000
net.ipv4.tcp_orphan_retries = 1
net.ipv4.tcp_max_orphans = 8192
vm.overcommit_memory = 1
fs.file-max = 600000
net.ipv4.ip_conntrack_max = 25000000
net.ipv4.netfilter.ip_conntrack_max = 25000000
net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 180
net.ipv4.netfilter.ip_conntrack_tcp_timeout_time_wait = 120
net.ipv4.netfilter.ip_conntrack_tcp_timeout_close_wait = 60
net.ipv4.netfilter.ip_conntrack_tcp_timeout_fin_wait = 120
