Hello,

I just changed my config with option 3 and I feel like my nignx is better now.

http://img232.imageshack.us/img232/5369/nginx.png

My new config is :

worker_processes 24;

events {
worker_connections 2048;
devpoll_events 1;
}

http {
include mime.types;
default_type application/octet-stream;

output_buffers 2 256k;
keepalive_timeout 15;

...
}

Thanks for your help