in main config: ## 64 Mbyte ... nice limit server.max-request-size = 65000 ### added by ameen server.max-fds = 8192 #server.max-write-idle = 300 server.max-connections = 16096 #server.max-keep-alive-requests = 4 #server.network-backend = "writev" #server.max-keep-alive-idle = 4 #server.stat-cache-engine = "fam" server.max-keep-alive-requests = 10 server.max-keep-alive-idle = 5 server.max-read-idle = 5 server.max-write-idle = 10 in php fcgi section "max-procs" => 10, "bin-environment" => ( "PHP_FCGI_CHILDREN" => "20", "PHP_FCGI_MAX_REQUESTS" => "100000"