nginx на Linux vs nginx на FreeBSD

user  nginx;
worker_processes  2;
error_log  /var/log/nginx/error.log;
pid        /run/nginx.pid;
events {
    use epoll;
    multi_accept on;
    worker_connections  8192;
}
http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    proxy_cache_path /var/spool/nginx/cache levels=1:2 keys_zone=one:10m inactive=7d max_size=200m;
    proxy_set_header Range "";
    proxy_set_header Request-Range "";
    open_file_cache max=200000 inactive=20s;.
    open_file_cache_valid 30s;.
    open_file_cache_min_uses 2;
    open_file_cache_errors on;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    include /etc/nginx/conf.d/*.conf;

server {
        listen 80;
        server_name servers.net;
        proxy_temp_path /var/spool/nginx/temp/server;
        access_log /var/log/nginx/server-access main;
        error_log  /var/log/nginx/server-error;
        keepalive_timeout    60;
        location / {
                proxy_redirect off;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Host $http_host;
                proxy_set_header X-URI $uri;
                proxy_set_header X-ARGS $args;
                proxy_set_header Refer $http_refer;
                proxy_set_header X-Forwarded-Proto https;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

                client_max_body_size       10m;
                client_body_buffer_size    128k;
                proxy_connect_timeout      90;
                proxy_send_timeout         90;
                proxy_read_timeout         90;
                proxy_buffer_size          4k;
                proxy_buffers              4 32k;
                proxy_busy_buffers_size    64k;
                proxy_temp_file_write_size 10m;
                proxy_cache_key $host$scheme$proxy_host$uri$is_args$args;
                proxy_cache_valid  200 302 304 10m;
                proxy_cache_valid  301 1h;
                proxy_cache_valid  any 1m;
        }
    }
}

Server Software:        nginx/1.2.8
Server Hostname:        domain.net
Server Port:            80

Document Path:          /schema.png
Document Length:        41675 bytes

Concurrency Level:      2
Time taken for tests:   116.656 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      4188700000 bytes
HTML transferred:       4167500000 bytes
Requests per second:    857.22 [#/sec] (mean)
Time per request:       2.333 [ms] (mean)
Time per request:       1.167 [ms] (mean, across all concurrent requests)
Transfer rate:          35064.73 [Kbytes/sec] received