Nginx flv stream gets too slow on 2000 concurrent connections (22 replies)

Hello,

We are using nginx to serve large size of static files i.e jpg,flv
and mp4 . Nginx stream works very well on 1000~1500 concurrent connections
but whenever connections exceeded to 2000~2200, stream gets too slow. We've
five content server with following specification:-

Dual Quard Core (8cores/16threads)
RAM = 32G
HDD = Sas Hard-Raid 10


My nginx.conf config is given below :

user nginx;
worker_processes 16;
worker_rlimit_nofile 300000; #2 filehandlers for each connection;

#pid logs/nginx.pid;


events {
worker_connections 6000;
use epoll;
}
http {
include mime.types;
default_type application/octet-stream;
limit_rate 180k;
client_body_buffer_size 128K;
sendfile_max_chunk 128k;
server_tokens off; #Conceals nginx version
access_log off;
sendfile on;
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
keepalive_timeout 0;

If somebody can help me improving nginx config will be helpful to him. I
apologize for bad engish :D
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