Как добиться 500 000 запросов в секунду на моем веб-сервере?

Недавно я подарил себе новый выделенный сервер, и я пытаюсь выжать из него максимальную производительность для развлечения и обучения.

Я пытаюсь достичь максимально возможных запросов в секунду, которые этот сервер может обработать, и нацеливаюсь на 500K запросов / сек, как упомянуто здесь - http://lowlatencyweb.wordpress.com/2012/03/20/500000-requestssec-modern-http-servers-are-fast/

Детали сервера

Intel® Xeon® E3-1270 4 ядра (8 HT) x 3,4 ГГц

ОЗУ 24 ГБ DDR3 ECC

Место на жестком диске 2000 ГБ (2 x 2000 SATA) RAID Программное обеспечение RAID 1

Lan 100 Мбит / с

ОС Centos 6.3 64 бит

Nginx

Я могу достичь только 35K запросов / сек для статического TXT-файла. Я запускаю тест на той же машине. Я знаю об ограничениях NIC и сетевых издержках

ab -n100000 -c200 http://localhost/test.txt

Обновление - 165K запросов / сек

Я попробовал другой инструмент для тестирования wrk и это дало мне 165K запросов / сек. Так круто!

Обновление 2 - 250 тыс. Запросов / сек

nginx.conf

#######################################################################
#
# This is the main Nginx configuration file.
#
# More information about the configuration options is available on
#   * the English wiki - http://wiki.nginx.org/Main
#   * the Russian documentation - http://sysoev.ru/nginx/
#
#######################################################################

#----------------------------------------------------------------------
# Main Module - directives that cover basic functionality
#
#   http://wiki.nginx.org/NginxHttpMainModule
#
#----------------------------------------------------------------------

user              nginx;
worker_processes  8;
worker_rlimit_nofile 262144;

error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;

pid        /var/run/nginx.pid;


#----------------------------------------------------------------------
# Events Module
#
#   http://wiki.nginx.org/NginxHttpEventsModule
#
#----------------------------------------------------------------------

events {
    worker_connections  16384;
    multi_accept on;
    use epoll;
}


#----------------------------------------------------------------------
# HTTP Core Module
#
#   http://wiki.nginx.org/NginxHttpCoreModule
#
#----------------------------------------------------------------------

http {
    include       /etc/nginx/mime.types;
    index    index.php index.html index.htm;

    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;

    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay on;
    server_tokens off;
    client_max_body_size 24m;
    client_body_buffer_size 128k;
    #keepalive_timeout  0;
    keepalive_timeout  65;
    open_file_cache max=1000;
    open_file_cache_min_uses 10;
    open_file_cache_errors   on;

    gzip on;
        gzip_static on;
    gzip_comp_level 3;
    gzip_disable "MSIE [1-6]\.";
        gzip_http_version 1.1;
        gzip_vary on;
        gzip_proxied any;
        gzip_types text/plain text/css text/xml text/javascript text/x-component text/cache-manifest application/json application/javascript application/x-javascript application/xml application/rss+xml application/xml+rss application/xhtml+xml application/atom+xml application/wlwmanifest+xml application/x-font-ttf image/svg+xml image/x-icon font/opentype app/vnd.ms-fontobject;
        gzip_min_length  1000;

fastcgi_cache_path   /tmp  levels=1:2
                       keys_zone=NAME:10m
                       inactive=5m;

  fastcgi_cache_key "$scheme$request_method$host$request_uri";


server {
    listen       80;
    server_name  _;
        root /var/www/html;

    #charset koi8-r;

    #access_log  logs/host.access.log  main;

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    error_page  404              /404.html;
    location = /404.html {
        root   /var/www/error;
    }

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /var/www/error;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php$ {
    fastcgi_pass   127.0.0.1:9000;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
    include        fastcgi_params;
    # checks to see if the visitor is logged in, a commenter,
    # or some other user who should bypass cache
    set $nocache "";
    if ($http_cookie ~ (comment_author_.*|wordpress_logged_in.*|wp-postpass_.*)) {
     set $nocache "Y";
   }
    # bypass cache if logged in.
    # Be sure that this is above all other fastcgi_cache directives
    fastcgi_no_cache $nocache;
    fastcgi_cache_bypass $nocache;

  fastcgi_cache   NAME;
  fastcgi_cache_valid   200 302  10m;
  fastcgi_cache_valid   301      1h;
  fastcgi_cache_valid   any      1m;
  fastcgi_cache_min_uses  10;
  fastcgi_cache_use_stale error  timeout invalid_header http_500;
    fastcgi_buffers 256 16k;
    }

location = /favicon.ico {
        log_not_found off;
        access_log off;
}

location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
}

# Deny all attempts to access hidden files such as .htaccess, .htpasswd, .DS_Store (Mac).
location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
}

# Deny access to any files with a .php extension in the uploads directory
location ~* ^/wp-content/uploads/.*.php$ {
        deny all;
        access_log off;
        log_not_found off;
}

location ~* \.(jpg|jpeg|gif|png|flv|mp3|mpg|mpeg|js|css|ico)$ {
        expires                 max;
        log_not_found   off;
}
}

}