Some needed changes

See:
http://tengine.taobao.org/document/benchmark.htmland
https://dmsimard.com/2014/06/21/a-use-case-of-tengine-a-drop-in-replacement-and-fork-of-nginx/"With nginx, the upload took 1 minute 13 seconds.
With Tengine, the upload took 41 seconds.
That’s a difference of more than 30 seconds !"
user nginx;
worker_processes auto;
worker_rlimit_nofile 400000;
pid /var/run/nginx.pid;
events {
worker_connections 20480;
multi_accept on;
use epoll;
reuse_port on;}
http {
add_header Cache-Control public;
server_names_hash_max_size 4096;
server_names_hash_bucket_size 2048;
types_hash_bucket_size 256;
types_hash_max_size 2048;
client_header_buffer_size 2k;
client_header_timeout 90s;
client_body_timeout 90s;
send_timeout 90s;
client_max_body_size 64M;
client_body_buffer_size 128k;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
server_tokens off;
proxy_request_buffering off;
fastcgi_request_buffering off; include '/etc/nginx/conf.d/*.conf';
}