}
}
},
+ :sysfs => {
+ :md_tune => {
+ :comment => "Tune the md sync performance so as not to kill system performance",
+ :parameters => {
+ "block/md0/md/sync_speed_min" => "100",
+ "block/md0/md/sync_speed_max" => "100000"
+ }
+ }
+ },
:networking => {
:interfaces => {
:internal_ipv4 => {
:postgresql => {
:settings => {
:defaults => {
- :shared_buffers => "9GB",
+ :shared_buffers => "24GB",
:work_mem => "160MB",
- :maintenance_work_mem => "9GB",
+ :maintenance_work_mem => "10GB",
:random_page_cost => "1.5",
:effective_cache_size => "48GB"
}