+ :kernel_scheduler_tune => {
+ :comment => "Tune kernel scheduler preempt",
+ :parameters => {
+ "kernel.sched_min_granularity_ns" => 10000000,
+ "kernel.sched_wakeup_granularity_ns" => 15000000
+ }
+ },
+ :swappiness => {
+ :comment => "Reduce swap usage",
+ :parameters => {
+ "vm.swappiness" => 10
+ }
+ },
+ :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" => "131072"
+ }