# tcpip
net.ipv4.tcp_mem = 8388608 12582912 16777216
net.ipv4.udp_mem = 8388608 12582912 16777216
net.ipv4.tcp_rmem = 409600 8738000 629145600
net.ipv4.tcp_wmem = 409600 1638400 419430400
net.core.wmem_default = 21299200
net.core.rmem_default = 21299200
net.core.wmem_max = 21299200
net.core.rmem_max = 21299200
net.core.netdev_max_backlog = 100000
net.ipv4.udp_rmem_min = 409600
net.ipv4.udp_wmem_min = 409600

# add arp cache mem
net.ipv4.neigh.default.gc_thresh1 = 2048
net.ipv4.neigh.default.gc_thresh2 = 4096
net.ipv4.neigh.default.gc_thresh3 = 8192

# set port range
net.ipv4.ip_local_port_range = 16000 59001

# max open files
fs.file-max = 100000