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NGINX 连接太慢

tag-icon • tag-icon linux ubuntu nginx
NGINX 连接太慢

当我尝试下载服务器上的文件时，速度非常慢。静态文件（如 .css .js）需要很长时间才能加载。我该如何测试问题出在服务器连接还是 NGINX 设置上？

  当前设置为：

user www-data;
worker_processes auto;
worker_rlimit_nofile 100000;
pid /run/nginx.pid;

events {
    worker_connections 4096;
    multi_accept on;
}

http {
    ##
    # EasyEngine Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 30;
    types_hash_max_size 2048;

    server_tokens off;
    reset_timedout_connection on;
    add_header X-Powered-By "New 1.0";
    add_header rt-Fastcgi-Cache $upstream_cache_status;

    # Limit Request
    limit_req_status 403;
    limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;

    # Proxy Settings
    # set_real_ip_from  proxy-server-ip;
    # real_ip_header    X-Forwarded-For;

    fastcgi_read_timeout 300;
    client_max_body_size 100m;

    ##
    # SSL Settings
    ##

    ssl_session_cache shared:SSL:20m;
    ssl_session_timeout 10m;
    ssl_prefer_server_ciphers on;
    ssl_ciphers CODE;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

    ##
    # Basic Settings
    ##
    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # Logging Settings
    ##

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

    # Log format Settings
    log_format rt_cache '$remote_addr $upstream_response_time $upstream_cache_status [$time_local] '
    '$http_host "$request" $status $body_bytes_sent '
    '"$http_referer" "$http_user_agent"';

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types
        application/atom+xml
        application/javascript
        application/json
        application/rss+xml
        application/vnd.ms-fontobject
        application/x-font-ttf
        application/x-web-app-manifest+json
        application/xhtml+xml
        application/xml
        font/opentype
        image/svg+xml
        image/x-icon
        text/css
        text/plain
        text/x-component
        text/xml
        text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}


#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
#
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

答案1

要确定是网络速度还是 nginx 服务器的配置问题，您可以尝试做以下几件事：

在网站上加载图片（有些图片很大，至少有 200MB）

  • 通过 nginx 中的网页提供服务，并使用 chrome/chromium 开发工具在网络选项卡上打开，查看需要下载多少时间。

  • 通过 scp 下载同一张图片

一旦获得两个结果，您就可以比较主题并查看，如果它们彼此非常接近，则意味着与 nginx 配置无关，但可能是对磁盘速度或连接的访问​​。

要检查磁盘访问速度，请尝试使用 hdparm：

sudo hdparm -Tt /dev/sda

为了测试连接速度，你可以尝试使用 iperf，完整指南可在此处找到：https://www.linode.com/docs/networking/diagnostics/install-iperf-to-diagnose-network-speed-in-linux/

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