PHP-FPM Pool Process Manager (pm) Settings
Being able to set these in the Settings & Packages section would be great.
pm.maxchildren = # The hard-limit total number of processes allowed
pm.startservers = # When php-fpm starts, have this many processes waiting for requests
pm.minspareservers = # Number spare processes php-fpm will create
pm.maxspareservers = # Max number of spare (waiting for connections) processes allowed to be created
pm.processidletimeout = #