Unix NGINX服务大文件（mp4），效率极低

我目前正在Centos 6.6操作系统上运行nginx/1.0.15

服务器具有以下规格：

英特尔（R）Atom（TM）CPU C2750@2.40GHz（8核）
32GB内存
5 x 6000 GB 7200 RPM（Raid 10）

问题

该服务器具有1Gbit/s的连接，但在400-500 mbit/s之后会出现峰值和瓶颈。在大约100个连接处，服务开始下降。。服务器的速度急剧下降（尽管仍有50%的带宽可用）

NGINX服务器严格用于提供静态.mp4文件。每个文件通常为400-1200MB（平均700mb）

我尝试了许多配置，几乎所有配置都给出了相同的结果

我的配置中是否存在明显错误或误导

配置

/etc/nginx/nginx.conf

user              nginx;
worker_processes  9;

error_log  /var/log/nginx/error.log;


pid        /var/run/nginx.pid;


events {
    worker_connections  51200;
    use epoll;
 }

worker_rlimit_nofile 600000;

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;
access_log off;

aio on;
sendfile        off;
tcp_nopush      off;
tcp_nodelay      on;

#keepalive_timeout  0;
keepalive_timeout  65;

output_buffers 1 3m;
#gzip  on;

include /etc/nginx/conf.d/*.conf;

open_file_cache          max=10000 inactive=5m;
open_file_cache_valid    2m;
open_file_cache_min_uses 1;
open_file_cache_errors   on;

}

server {
    listen       80 default_server sndbuf=32k;
    server_name  _;

    #charset koi8-r;

    #access_log  logs/host.access.log  main;

    include /etc/nginx/default.d/*.conf;


    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    location /Videos/ {
        root /home;
        gzip off;
        gzip_static off;

        mp4;
        mp4_max_buffer_size   300m;
    }

    location /stats {
        stub_status on;
    }

    error_page  404              /404.html;
    location = /404.html {
        root   /usr/share/nginx/html;
    }


    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}

/etc/nginx/conf.d/default.conf

user              nginx;
worker_processes  9;

error_log  /var/log/nginx/error.log;


pid        /var/run/nginx.pid;


events {
    worker_connections  51200;
    use epoll;
 }

worker_rlimit_nofile 600000;

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;
access_log off;

aio on;
sendfile        off;
tcp_nopush      off;
tcp_nodelay      on;

#keepalive_timeout  0;
keepalive_timeout  65;

output_buffers 1 3m;
#gzip  on;

include /etc/nginx/conf.d/*.conf;

open_file_cache          max=10000 inactive=5m;
open_file_cache_valid    2m;
open_file_cache_min_uses 1;
open_file_cache_errors   on;

}

server {
    listen       80 default_server sndbuf=32k;
    server_name  _;

    #charset koi8-r;

    #access_log  logs/host.access.log  main;

    include /etc/nginx/default.d/*.conf;


    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    location /Videos/ {
        root /home;
        gzip off;
        gzip_static off;

        mp4;
        mp4_max_buffer_size   300m;
    }

    location /stats {
        stub_status on;
    }

    error_page  404              /404.html;
    location = /404.html {
        root   /usr/share/nginx/html;
    }


    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}

---

这个问题最好发到

http://serverfault.com

（stackexchange技术系统的一部分）。使用问题底部的

标志

链接，请主持人将其移到那里。祝你好运。这个问题最好发到

http://serverfault.com

（stackexchange技术系统的一部分）。使用问题底部的

标志

链接，请主持人将其移到那里。祝你好运