优化nginx主配置文件

我在服务器所使用的web软件是Tengine。所以配置文件中有些选项是不兼容nginx的，已作出说明。Tengine的主页是http://tengine.taobao.org

配置文件内容

#######################################################################
#
# 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 nginx;
worker_processes auto;
worker_cpu_affinity auto;
worker_rlimit_nofile 51200;
#error_log /home/logs/nginx/error.log crit;
#error_log /var/log/nginx/error.log notice;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
#----------------------------------------------------------------------
# Events Module
#
# http://wiki.nginx.org/NginxHttpEventsModule
#
#----------------------------------------------------------------------
events {
    use epoll;
    multi_accept on;
    worker_connections 51200;
}
# Tengine only
# load modules compiled as Dynamic Shared Object (DSO)
#
#dso {
# load ngx_http_fastcgi_module.so;
# load ngx_http_rewrite_module.so;
#}
#----------------------------------------------------------------------
# HTTP Core Module
#
# http://wiki.nginx.org/NginxHttpCoreModule
#
#----------------------------------------------------------------------
http {
    include 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"‘;

    log_empty_request off; # Tengine only
    access_log /var/log/nginx/access.log main buffer=16k;
    #server_tokens off; # Nginx only
    server_tag zhiliang; # Tengine only
    server_info off; # Tengine only
    server_names_hash_bucket_size 128;
    large_client_header_buffers 4 4k;
    client_header_buffer_size 2k;
    client_max_body_size 12m;
    sendfile    on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 60;

    fastcgi_send_timeout 120s;
    fastcgi_read_timeout 120s;
    fastcgi_buffer_size 16k;
    fastcgi_buffers 32 16k;
    fastcgi_busy_buffers_size 16k;
    fastcgi_temp_file_write_size 16k;
    open_file_cache max=204800 inactive=20s;
    open_file_cache_min_uses 1;
    open_file_cache_valid 30s;
    #open_file_cache_errors on;
    gzip on;
    gzip_disable "msie6";
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 5;
    gzip_min_length 1k;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
    error_page 404 /404.htm;
    # fastcgi used by unix socket and not only one pool
    upstream phpbackend {
        server unix:/dev/shm/php-fpm-www1.sock;
        server unix:/dev/shm/php-fpm-www2.sock;
    }
    include conf.d/*.conf;
}

优化nginx主配置文件