+ :sysctl => {
+ :sockets => {
+ :comment => "Increase size of connection queue",
+ :parameters => {
+ "net.core.somaxconn" => 10000
+ }
+ },
+ :network_conntrack_time_wait => {
+ :comment => "Only track completed connections for 30 seconds",
+ :parameters => {
+ "net.netfilter.nf_conntrack_tcp_timeout_time_wait" => "30"
+ }
+ },
+ :network_conntrack_max => {
+ :comment => "Increase max number of connections tracked",
+ :parameters => {
+ "net.netfilter.nf_conntrack_max" => "524288"
+ }
+ },
+ :no_tcp_slow_start => {
+ :comment => "Disable TCP slow start",
+ :parameters => {
+ "net.ipv4.tcp_slow_start_after_idle" => "0"
+ }
+ },
+ :tcp_use_bbr => {
+ :comment => "Use TCP BBR Congestion Control",
+ :parameters => {
+ "net.core.default_qdisc" => "fq",
+ "net.ipv4.tcp_congestion_control" => "bbr"
+ }
+ }
+ },